Carat Hunter · Diamond retailer comparisons

Aida Diamonds vs Diamond Quarter

Side-by-side store comparison. Independent and non-promotional.

Data current as of November 2, 2026 · Updated daily. Zero affiliate revenue.

At a glance

Aida DiamondsDiamond Quarter
FoundedNot providedNot provided
HeadquartersSydney, AustraliaBirmingham, United Kingdom
Current listings635,4611,118,933
Origin mixLab + NaturalLab + Natural
Cert labs acceptedGIA · IGIAGS · DF · DFC · EGL · GCAL · GIA · GSI · HRD · IGI · SHANE
Ships toAustraliaUK
Return windowNot provided30 days
Terms checkedNot yet verifiedNot yet verified

Current listings, origin mix and accepted labs are updated daily. Founded, headquarters and shipping come from public sources. Return terms are our summary of each retailer's own policy page, dated per retailer in the table. Retailers change their terms, so check the retailer's own returns and shipping pages before you buy.

What each store stocks

Inventory composition observed across each store's current listings.

Aida Diamonds

Origin mix

Lab-grown 100%Natural 0%

Most common shapes

Round 37%·Oval 14%·Emerald 9%·Cushion 9%

Diamond Quarter

Origin mix

Lab-grown 64%Natural 36%

Most common shapes

Round 39%·Oval 12%·Emerald 12%·Radiant 9%

Stones stocked by both

No overlap right now

These stores do not currently share any of the same physical diamonds. Their inventories are mostly distinct.

Pick by what you are looking for

  • Need shipping to European Union? Neither store ships there.
  • Need GIA grading? Both stores carry it.
  • Need IGI grading? Both stores carry it.
  • Need HRD grading? Only Diamond Quarter carries it.
  • Aida Diamonds stocks more natural. Diamond Quarter stocks more lab-grown.

Looking for a specific spec?

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Questions we get

Does Carat Hunter earn commission from either store?

No. We earn zero affiliate revenue from any retailer in our index.

Why do you not show price comparisons on this page?

Pricing varies per stone, not per store. Click through to any matched diamond above and you'll see both retailers' prices on the exact same physical stone, which is the real comparison.

How fresh is this data?

Listings refresh as we re-read each retailer, most of them every day. Static facts refresh monthly.

How do I find a specific stone at both stores?

Use the GIA or IGI certificate number in our search.