Bulk Bags for Earrings: When to Buy 100 vs 1,000

Posted by AppleZipBags Team on Sep 9th 2026

Buying bulk bags for earrings can reduce packaging costs, simplify inventory management and eliminate constant reordering—but buying 1,000 bags is only a smart decision when the size and packaging system are already proven.

For a new earring business, 100 bags may be exactly the right quantity.

For an established ecommerce store packaging hundreds of pairs every week, repeatedly purchasing 100-packs can quickly become inefficient.

The most useful rule is:

Buy 100 while you are testing. Buy 1,000 once the packaging is standardized.

Before moving into bulk quantities, make sure you know:

Which earrings use the bag
Whether the earring card fits
Whether posts and backs fit comfortably
Whether the label has enough room
How many bags you use each month
Whether the bag size will remain standard
Whether clear or colored packaging works best
How frequently you want to reorder

Apple Zip Bags offers resealable jewelry bags suitable for earrings and other small jewelry in multiple sizes and quantity options, making it possible to test a packaging system before scaling it.

The best purchasing sequence is:

measure → test → standardize → track usage → buy in bulk.

Quick Answer: Should You Buy 100 or 1,000 Earring Bags?

Use this comparison as a starting point:

Situation	100-Pack	1,000-Pack
New earring business	Best	Usually wait
Testing a bag size	Best	Avoid initially
Testing an earring card	Best	Avoid initially
New collection	Best	After demand is proven
New bag color	Best	Test first
Low monthly volume	Best	May be excessive
Stable earring card size	Good	Best
High monthly order volume	Inefficient	Best
Several earring SKUs share one bag	Possible	Best
Wholesale earring seller	Often too small	Usually better
Seasonal collection	Usually best	Depends
Established ecommerce operation	Possible	Usually best

The difference comes down to two things:

certainty and consumption.

If you are uncertain about the packaging:

buy 100.

If you know the packaging works and regularly consume it:

buy 1,000.

Why Quantity Matters for Earring Packaging

Earring bags may be inexpensive compared with the earrings themselves, but they are still inventory.

Too little packaging can create:

Emergency reorders
Fulfillment delays
Packaging substitutions
Higher unit costs
Additional purchasing work

Too much packaging can create:

Dead inventory
Storage clutter
Cash tied up in supplies
Obsolete colors
Bags that no longer fit redesigned cards

Current inventory cost guidance emphasizes that inventory costs extend beyond the original purchase price and include expenses associated with ordering, holding, storing and managing stock.

That principle applies to packaging supplies too.

The cheapest bag is not automatically the best purchase if hundreds of them remain unused.

When 100-Pack Earring Bags Make the Most Sense

A 100-pack is particularly useful when uncertainty is still high.

Think of 100 bags as:

a controlled test quantity.

They allow you to verify the packaging in actual operations without committing to a large amount of inventory.

Buy 100 When Testing a New Earring Bag Size

Measurements can suggest that a bag will fit.

Actual packing may reveal something different.

For example:

Posts may add unexpected depth
Earring backs may catch against the closure
Hoops may be too wide for the opening
Drop earrings may need more length
The label may cover too much of the product

A smaller pack lets you identify these problems before ordering substantially more.

Apple Zip Bags offers 100-pack small 2.5 mil jewelry bags that can be useful when testing a new packaging specification.

Buy 100 When Testing a New Earring Card

The bag may fit the earrings perfectly but fail once the earrings are mounted on a card.

Card dimensions often determine the required bag size for:

Studs
Huggies
Hoops
Drops

If your cards are still being adjusted, avoid building too much packaging inventory.

Test:

card + earrings + posts + backs + label

as one finished package.

Buy 100 for a New Earring Collection

A new collection has uncertain demand.

You may launch:

Pearl studs
Oversized hoops
Long drops
Statement earrings

and discover that only one category becomes a high-volume seller.

Buying 1,000 specialized bags for every collection before understanding demand can create unnecessary inventory.

Start smaller.

Scale the packaging associated with the products that actually sell.

Buy 100 When Testing Colored Bags

Colored earring bags can be useful for:

Product categories
Collections
Branding
Workflow organization

But test the color first.

You may discover that:

The earrings are difficult to see
Barcode labels have poor contrast
The color does not match your branding
Employees find the coding system confusing

Testing 100 is safer than discovering the same issue after purchasing 1,000.

Buy 100 for Seasonal Earrings

Seasonal collections may include:

Valentine's earrings
Mother's Day designs
Halloween earrings
Holiday earrings

Specialized seasonal packaging can have a limited useful life.

If the same bag will not work for your regular collection afterward, smaller quantities reduce leftover inventory risk.

Buy 100 When Sales Volume Is Still Low

Suppose your business packages:

25 pairs of earrings per month.

A 100-pack lasts:

4 months.

A 1,000-pack would last approximately:

40 months.

That is more than three years of packaging inventory.

Unless the dimensions are highly standardized and you are confident the bag will remain useful, 1,000 may be unnecessary.

When 1,000-Pack Earring Bags Make More Sense

Once the packaging system is proven, larger quantities become far easier to justify.

The 1,000-pack is particularly attractive when:

One size works across many products
Monthly consumption is high
Card sizes are standardized
Reordering 100-packs becomes repetitive

Apple Zip Bags offers 1,000-pack small 2.5 mil jewelry bags for higher-volume jewelry packaging applications.

Buy 1,000 When the Bag Size Is Proven

Before purchasing 1,000, you should already know that:

Earrings fit
Cards fit
Posts do not interfere with closure
Labels fit
Employees can pack quickly
Bags fit your inventory bins
Customers receive the product appropriately

Once those questions have been answered, bulk buying becomes much less risky.

Buy 1,000 When Multiple Earring SKUs Share One Bag

This is one of the strongest reasons to buy bulk.

Suppose the same small clear bag works for:

Crystal studs
Pearl studs
Huggies
Small hoops
Short drops

Instead of buying separate packaging for each SKU, you have one packaging SKU serving hundreds of products.

That concentrates demand.

The more products use the same bag:

the easier 1,000 becomes to consume.

Buy 1,000 When Earring Cards Are Standardized

Bag standardization often begins with card standardization.

Suppose all:

Studs
Huggies
Small hoops

use one standard card.

That allows them to potentially share one standard bag.

Now the combined packaging consumption might be several hundred bags per month.

Bulk purchasing becomes much more practical.

Buy 1,000 When Monthly Usage Is Predictable

Suppose your business packages:

500 pairs of earrings per month.

If each pair uses one bag:

500 bags are consumed monthly.

A 100-pack lasts:

0.2 month.

A 1,000-pack lasts approximately:

2 months.

In this situation, continuously ordering packs of 100 adds unnecessary purchasing work.

Calculate Your Actual Monthly Earring Bag Usage

Do not guess.

Use:

pairs packaged per month × bags used per pair = monthly bag usage

Example 1: Small Earrings Shop

Pairs packaged monthly:

Bags per pair:

Monthly usage:

75 bags

A 100-pack lasts approximately:

1.3 months.

Example 2: Growing Ecommerce Store

Pairs packaged monthly:

400

Bags per pair:

Monthly usage:

400 bags

A 1,000-pack lasts:

2.5 months.

Example 3: High-Volume Earring Seller

Pairs packaged monthly:

1,500

Bags per pair:

Monthly usage:

1,500 bags.

A 1,000-pack does not even represent one full month of supply.

At this scale, 100-packs are usually operationally inefficient.

Do Not Calculate Usage From Orders Alone

This mistake can dramatically underestimate packaging consumption.

Suppose you receive:

300 orders per month.

Average earrings per order:

2.5 pairs.

Actual bag consumption:

300 × 2.5 =

750 bags per month.

You may only have 300 shipments, but you consume approximately 750 product bags.

Track:

pairs packaged

rather than only:

orders shipped.

Calculate Months of Supply

Use this simple formula:

bags purchased ÷ monthly bag usage = months of supply

Suppose your business uses:

250 bags monthly.

100-Pack

100 ÷ 250 =

0.4 month

1,000-Pack

1,000 ÷ 250 =

4 months

Now the bulk option becomes much easier to evaluate.

How Many Months of Earring Bags Should You Keep?

There is no universal answer.

Several months of supply can be perfectly reasonable for a bag that is:

Clear
Standardized
Frequently used
Unlikely to change

But several years of inventory may be excessive for:

Specialty colors
Unusual dimensions
Seasonal packaging
Experimental cards

The more universal the bag:

the safer bulk buying becomes.

Compare Cost Per Bag

Always calculate:

pack price ÷ number of bags = cost per bag.

For example, if:

100 bags cost $8

then:

$8 ÷ 100 =

$0.08 per bag.

If:

1,000 bags cost $12

then:

$12 ÷ 1,000 =

$0.012 per bag.

That would represent a major unit-cost reduction.

However, always compare current supplier pricing because packaging prices and promotions can change.

Lower Cost Per Bag Is Not the Entire Decision

Imagine two situations.

Business A

Uses:

1,000 bags every two months.

Bulk purchasing makes strong sense.

Business B

Uses:

50 bags per year.

Even an extremely low cost per bag may not justify holding 20 years of packaging inventory.

Think beyond unit price.

Also consider:

Usage velocity
Storage
Cash flow
Reordering labor
Risk of packaging changes

Account for Inventory Carrying Cost

Packaging takes physical space.

Your business must:

Receive it
Count it
Store it
Organize it
Monitor it

A thousand compact earring bags may not occupy enormous space, but carrying unnecessary quantities across many different bag sizes and colors can quickly create clutter.

Bulk buying works best when inventory is concentrated into:

a small number of high-use packaging SKUs.

Standardize Before Buying Bulk

The fastest way to make earring packaging more economical is not necessarily negotiating a lower price.

It is often:

using fewer packaging sizes.

For example, instead of carrying six slightly different small bags, determine whether your earrings can use:

Extra small
Small
Medium

That makes each remaining size a higher-volume packaging SKU.

Standardize Earring Cards First

Suppose you use seven card dimensions.

Every card may require a different bag.

If you consolidate those cards into three standard formats:

Small Card

For:

Studs
Huggies

Medium Card

For:

Hoops
Drops

Large Card

For:

Statement earrings

you may also reduce the number of bag sizes from seven to three.

That is far easier to buy in bulk.

Measure Before Standardizing

Do not consolidate simply for convenience if the bag becomes a poor fit.

Measure:

Complete card width
Card length
Earring extension
Product thickness
Posts
Backs

The Apple Zip Bags packaging bag size guide provides a useful starting framework for measuring the complete packaged product rather than only the item itself.

Keep Sharp Posts in Mind

Stud and post earrings can be small but still put concentrated pressure against the film.

Before committing to 1,000 bags:

Install backs
Test the posts
Stack packaged earrings
Simulate normal handling

Make sure the bag works under realistic conditions.

Bulk Buying for Stud Earrings

Stud sellers often have strong opportunities for packaging standardization.

Many different studs can use:

The same card
The same bag
The same label format

If hundreds of stud SKUs all use one bag:

1,000 units may disappear surprisingly quickly.

Clear bags are especially practical because employees can visually verify:

Stone
Shape
Finish

through the package.

Bulk Buying for Huggie Earrings

Huggies are also strong candidates for standardized packaging.

If most huggies use one small card size, they can potentially share the same packaging SKU as certain studs or small hoops.

That combined usage can justify a larger purchase.

Bulk Buying for Hoop Earrings

Hoops can require more than one bag size because diameter varies.

For example:

Small Bag

10mm hoops
15mm hoops
20mm hoops

Medium Bag

30mm hoops
40mm hoops

Large Bag

Oversized hoops

Track actual usage separately.

Do not buy 1,000 of every size automatically.

Buy larger quantities of the sizes that move fastest.

Bulk Buying for Drop Earrings

Drop earrings may vary more in length than studs.

If your card system is consistent, however, many styles can still share one bag dimension.

Standardize how drops are positioned on the card before buying in bulk.

Bulk Buying for Statement Earrings

Statement earrings often require specialized dimensions.

Demand may also be lower.

This combination can make 100-packs more appropriate unless:

Statement earrings are a major product category
Several styles share the same bag
Volume is predictable

If earrings genuinely require more room, consider larger resealable jewelry bags rather than forcing products into the smallest size merely to consolidate packaging.

Clear Bags Are Strong Bulk-Buying Candidates

Clear bags are generally more universal than category-specific colors.

The same clear bag can serve:

Gold earrings
Silver earrings
Pearl earrings
Studs
Huggies
Hoops
Drops

provided the dimensions are suitable.

This makes clear bags easier to standardize.

Colored Bags May Require More Conservative Purchasing

Colored packaging can fragment demand.

Suppose you use:

Pink for studs
Blue for hoops
Purple for drops
Green for huggies

Instead of one bag SKU consuming:

1,000 bags monthly,

you may now have four bag SKUs consuming:

250 each.

That increases the amount of inventory you need to manage.

Clear Bags With Colored Labels Can Simplify Bulk Purchasing

A more efficient approach may be:

clear bags + colored labels.

For example:

Pink label = studs

Blue label = hoops

Purple label = drops

Green label = huggies

Now you can buy the clear bag in higher volume while changing only the inexpensive identification label.

Plain Packaging Can Reduce Obsolescence Risk

Plain bags remain useful even when:

Collections change
Logos change
Branding evolves

They can be customized using:

Stickers
Cards
Labels
Inserts

This flexibility makes plain packaging safer to purchase in large quantities.

The Apple Zip Bags guide to custom printed jewelry bags vs. plain bags explains why volume, budget and branding stability matter when deciding how customized packaging should become.

Rebranding Can Change the 100-vs.-1,000 Decision

If you know that a rebrand is coming, consider buying smaller quantities temporarily.

Changes may include:

New cards
New logo labels
New colors
Different card dimensions

If any of those changes affect bag fit, excess packaging could become unusable.

Track Your Highest-Use Packaging SKUs

Not every bag deserves the same inventory investment.

One extra-small clear bag may represent:

60% of your total earring packaging usage.

Another specialty bag might represent:

3%.

Prioritize the high-use bag.

Inventory approaches such as ABC analysis similarly emphasize identifying the highest-impact inventory items and managing them differently from slower-moving stock.

For packaging, that might mean:

A bags: high-use standard clear sizes

B bags: medium-volume sizes

C bags: specialty colors and unusual dimensions

Buy More of Core Bags and Less of Specialty Bags

A practical inventory strategy might be:

Buy 1,000

For:

Extra-small clear standard bag
Small clear standard bag

Buy 100

For:

Oversized statement earring bag
Seasonal color
Experimental packaging

This hybrid approach reduces both:

Stockout risk
Overstock risk

Set a Reorder Point

Do not wait until your last bag is used.

A reorder point tells you when to replenish inventory.

A common formula discussed in safety stock and reorder point guidance is:

reorder point = expected demand during lead time + safety stock.

Suppose you consume:

25 bags per day.

Your supplier takes:

5 days

to replenish them.

Expected usage during lead time:

25 × 5 =

125 bags.

If you want another:

100 bags

as a buffer, you might reorder when inventory reaches approximately:

225 bags.

Keep Safety Stock for Your Core Earring Bags

Your main packaging bag is inexpensive compared with the operational problem created by running out.

Without the correct bag, you may have to:

Delay shipping
Substitute another size
Repackage products
Emergency-order supplies

Maintain some buffer for your highest-use sizes.

Do Not Maintain the Same Safety Stock for Every Bag

Your specialty statement-earring bag may only be used:

20 times per month.

Your small stud bag may be used:

700 times per month.

Those bags should not have identical replenishment policies.

Focus the largest buffer on the packaging that would cause the greatest disruption if it ran out.

Forecast Future Earring Bag Usage

Historical usage tells you where you were.

Forecasting helps estimate where you are going.

Consider:

Sales growth
New collections
Wholesale accounts
Holiday volume
Influencer launches
Retail expansion

General inventory forecasting guidance emphasizes using demand data and expected changes to plan replenishment rather than relying only on guesswork.

Example: Growing Earring Business

Current monthly consumption:

500 bags

Expected growth:

20%

Future monthly estimate:

500 × 1.20 =

600 bags.

If growth continues, a 1,000-pack may soon represent less than two months of supply.

That makes bulk purchasing increasingly reasonable.

Seasonal Demand Requires Different Planning

Suppose holiday sales are three times normal volume.

Normal monthly usage:

300 bags

Holiday usage:

900 bags

A business that normally keeps only 400 bags on hand could face a stockout.

Increase packaging inventory ahead of predictable high-demand periods.

But avoid applying the same seasonal forecast to every earring category.

Bulk Earring Bags for Etsy Sellers

A new Etsy seller may benefit from starting with 100 because:

Bestselling styles are unknown
Cards may change
Brand presentation may evolve
Sales volume can be irregular

After several months, identify the bags with consistent use.

Those become candidates for 1,000-pack purchasing.

Bulk Bags for Established Ecommerce Sellers

An established store may package:

thousands of earrings each month.

At that point, buying 100 bags at a time can create unnecessary:

Reordering
Receiving
Inventory administration

High-use standardized bags should usually move toward larger quantities.

Bulk Earring Bags for Wholesale Businesses

Wholesale can dramatically increase bag consumption.

Suppose one retailer orders:

50 pairs of studs
40 pairs of hoops
30 pairs of drops

If every pair receives individual packaging:

120 bags

are used in one wholesale order.

Nine similar orders consume more than:

1,000 bags.

For wholesale sellers, bulk packaging often becomes necessary much earlier.

Bulk Bags for Craft Show Sellers

Trade shows and craft markets can create sudden packaging needs.

If inventory is already prepacked:

Counting becomes easier
Products remain paired
Restocking is faster
Pack-down is simpler

If you regularly attend events, include those product quantities in your monthly packaging calculation.

Calculate Annual Bag Usage

Monthly usage provides one view.

Annual usage shows the larger purchasing picture.

Use:

monthly usage × 12 = estimated annual usage.

Example:

400 bags monthly × 12 =

4,800 bags annually.

For that business, 1,000 bags represent only about:

2.5 months

of expected consumption.

Buying in bulk is much easier to justify.

Calculate Cost Per Pair Packaged

If one pair of earrings uses one bag:

bag cost = packaging bag cost per pair.

Suppose the bag costs:

$0.01 each.

For 10,000 pairs:

10,000 × $0.01 =

$100 in bag cost.

If another purchasing option costs:

$0.07 per bag,

the same 10,000 pairs would require:

$700.

At high volume, small unit-cost differences become meaningful.

Include More Than the Bag in Packaging Cost

Your complete packaging cost may include:

Earring bag
Card
SKU label
Logo sticker
Pouch
Box
Insert
Shipping materials

Do not optimize the bag in isolation while ignoring the total packaging system.

Employee Time Also Has Value

Suppose your team has to order new 100-packs every week.

That creates:

Purchasing time
Receiving time
Counting time
Restocking time

Moving proven packaging to larger packs can reduce this repetitive administrative work.

Storage Still Matters

Bulk buying should not overwhelm the packing area.

Create designated locations for:

Extra-small bags
Small bags
Medium bags
Back stock

Keep active packaging close to the workstation and reserve excess cartons or packs for organized back-stock storage.

Create Packaging SKUs

Treat bags like inventory.

For example:

EAR-BAG-XS-CLR-25

Extra-small, clear, 2.5 mil

EAR-BAG-S-CLR-25

Small, clear, 2.5 mil

EAR-BAG-M-CLR-25

Medium, clear, 2.5 mil

Now you can accurately track which bag each earring SKU consumes.

Track Starting and Ending Inventory

A simple report might look like:

Packaging SKU	Starting Qty	Purchased	Used	Ending Qty
EAR-BAG-XS	900	1,000	750	1,150
EAR-BAG-S	500	0	350	150
EAR-BAG-M	180	100	60	220

This immediately shows which bag needs reordering.

When to Move From 100 to 1,000

Consider making the switch when most of these statements are true:

I have tested the bag.
It fits correctly.
My earring cards are stable.
My labels fit.
Multiple SKUs use it.
I know monthly usage.
I expect to use the entire quantity.
Storage space is available.
I reorder the 100-pack frequently.
Bulk pricing meaningfully improves the economics.

You do not need to wait until every variable is perfect.

But the packaging should no longer be experimental.

When to Stay With 100

Stay with smaller quantities when:

Bag dimensions are uncertain
Cards are being redesigned
Collection demand is unpredictable
Color is experimental
Usage is very low
Packaging may change soon
The size serves only a handful of SKUs

Flexibility is worth paying for when uncertainty is high.

Common Bulk Earring Bag Buying Mistakes

Buying 1,000 Before Testing

Always test the actual earring package.

Buying 100 Repeatedly for a Core Bag

Once demand is established, frequent small reorders can become inefficient.

Calculating Usage From Orders Instead of Pairs

One order may contain several pairs.

Ignoring Earring Cards

Card dimensions may determine the bag size.

Ignoring Posts and Backs

The complete package must fit.

Buying Every Color in Bulk

Concentrate volume where possible.

Stocking Too Many Similar Sizes

Standardize.

Buying Only Because the Unit Price Is Lower

Make sure you will use the inventory.

Ignoring Storage Space

Bulk inventory still needs organization.

Buying Specialty Packaging Too Far Ahead

Collections and branding change.

Allowing Core Bags to Reach Zero

Use reorder points.

Treating Every Bag SKU Equally

Prioritize your highest-use packaging.

Bulk Earring Bag Buying Checklist

Before ordering 1,000 earring bags, ask:

Have I tested this bag?
Do the actual earrings fit?
Does the earring card fit?
Do posts and backs fit comfortably?
Can the bag close easily?
Does the SKU label fit?
Can employees pack quickly?
Does the bag fit inventory bins?
Is the bag clear or colored?
Is the color proven?
Could clear bags with colored labels simplify inventory?
How many pairs do I package monthly?
How many bags are used per pair?
How many bags are used per order?
How many months will 100 last?
How many months will 1,000 last?
What is the cost per bag?
How often do I currently reorder?
How long does supplier replenishment take?
What is my reorder point?
How much safety stock do I need?
Does this bag serve multiple SKUs?
Can I standardize card sizes?
Can I reduce the number of bag sizes?
Is this a core packaging SKU?
Is demand seasonal?
Is the collection experimental?
Is a rebrand planned?
Do I have enough storage?
Will I realistically use all 1,000?

Frequently Asked Questions

Should I buy 100 or 1,000 bags for earrings?

Choose 100 when testing a new bag, earring card, color or collection.

Choose 1,000 once the packaging is proven and consumption is predictable.

When should an earring business start buying bags in bulk?

Bulk purchasing generally makes sense once:

Bag dimensions are standardized
Multiple SKUs share the size
Monthly usage is consistent
Small packs require frequent reordering

Are 1,000-pack earring bags usually better value?

They can offer a significantly lower cost per bag, but value depends on whether you will actually use the quantity.

Always calculate:

pack price ÷ bag count.

How do I calculate monthly earring bag usage?

Use:

pairs packaged per month × bags per pair.

If you package 600 pairs individually:

you need approximately 600 bags per month.

Should I calculate packaging needs from order count?

No.

One customer order may contain several pairs of earrings.

Calculate the actual number of pairs packaged.

How long will 1,000 earring bags last?

Use:

1,000 ÷ monthly bag usage.

If you consume 400 bags monthly:

1,000 lasts approximately 2.5 months.

Should a new earring business buy 1,000 bags?

Usually not until the business confirms its:

Bag sizes
Card dimensions
Labels
Packaging workflow

Starting with 100 can provide more flexibility.

Are clear bags better for buying in bulk?

Often yes.

Clear bags can usually work across more:

Collections
Colors
Earring categories

making them easier to standardize.

Should colored earring bags be bought in smaller quantities?

When a color is new or experimental, buying a smaller quantity first can reduce risk.

Can stud earrings and huggies use the same bag?

Possibly.

If the complete packaged dimensions are compatible, standardizing them onto one bag can increase volume and simplify purchasing.

Should hoop earrings use a separate size?

Larger hoops often require additional width.

Measure the outside diameter and test actual fit.

How many earring bag sizes should I keep?

Many businesses can cover a large portion of their catalog using approximately:

2–3 standardized core sizes

if their earring cards are also standardized.

Should I keep safety stock?

For frequently used core bags, maintaining some buffer inventory can help prevent packaging stockouts.

When should I reorder earring bags?

Set a reorder point based on:

Average usage
Supplier lead time
Safety stock

Do not wait until inventory reaches zero.

Is buying bulk always better?

No.

Bulk is best for proven, frequently used packaging.

Small quantities are better when flexibility matters more than unit cost.

Final Verdict: When Should You Buy 100 vs. 1,000 Earring Bags?

The decision between 100 and 1,000 bulk bags for earrings should be driven by:

certainty + usage + standardization.

Choose 100 bags when you are:

Testing a new size
Testing earring cards
Launching a collection
Trying a new color
Operating at low volume
Planning packaging changes

Choose 1,000 bags when:

The bag size is proven
Cards are standardized
Multiple earring SKUs use the same bag
Monthly consumption is predictable
Frequent 100-pack orders have become inefficient

Before buying bulk, calculate:

monthly bag usage = pairs packaged × bags per pair

Then calculate:

months of supply = pack quantity ÷ monthly usage.

Also evaluate:

Cost per bag
Storage
Supplier lead time
Reorder point
Safety stock
Seasonal demand
Upcoming branding changes

For most growing earring businesses, the strongest progression is:

100 → test → standardize → track → 1,000.

Use smaller packs to learn.

Use larger packs once the data shows that the bag has become a permanent part of your packaging system.

And whenever possible, standardize:

Earring cards
Core bag sizes
Clear packaging
SKU labels

so more products can use the same supplies.

That makes bulk purchasing easier, reduces packaging complexity and creates a smoother workflow from:

inventory → picking → verification → packing → shipping.