Carat Hunter · Diamond retailer comparisons

GemsNY vs MOH London

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

Data current as of October 29, 2026 · Updated daily. Zero affiliate revenue.

At a glance

	GemsNY	MOH London
Founded	1988	Not provided
Headquarters	Fort Lee, NJ, United States	Hatton Garden, London, UK
Current listings	182,116	1,966,486
Origin mix	Lab + Natural	Lab + Natural
Cert labs accepted	AGS · DF · DFC · EGL · GCAL · GIA · HRD · IGI · UNKNOWN	EGL · EGL ISRAEL · EGL USA · EGLINT · EGLUSA · GCAL · GIA · GSI · HRD · IGI · OTHER · R&F · SGS · UNKNOWN
Ships to	United States · International	Not provided
Return window	30 days	Not provided
Terms checked	Not yet verified	Not 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.

GemsNY

Origin mix

Lab-grown 89%Natural 11%

Most common shapes

Round 21%·Cushion 14%·Oval 14%·Marquise 12%

MOH London

Origin mix

Lab-grown 65%Natural 35%

Most common shapes

Round 44%·Oval 12%·Pear 9%·Cushion 8%

Stones stocked by both

We track 24,027 diamonds currently listed at both stores.

Most common overlap: Round, 1ct, natural, I VS1

Explore Round 1ct I VS1 cohort

Each matched stone has its own page where both retailers' prices appear next to the same physical diamond. That is where price comparison happens, on the stone, not on this page.

Pick by what you are looking for

Need shipping to India? Only GemsNY ships there.
Need GIA grading? Both stores carry it.
Need IGI grading? Both stores carry it.
Need HRD grading? Both stores carry it.
GemsNY stocks more natural. MOH London 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.