Carat Hunter · Diamond retailer comparisons

Diamond Quarter vs MOH London

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

Data current as of October 31, 2026 · Updated daily. Zero affiliate revenue.

At a glance

	Diamond Quarter	MOH London
Founded	Not provided	Not provided
Headquarters	Birmingham, United Kingdom	Hatton Garden, London, UK
Current listings	1,118,933	2,030,590
Origin mix	Lab + Natural	Lab + Natural
Cert labs accepted	AGS · DF · DFC · EGL · GCAL · GIA · GSI · HRD · IGI · SHANE	EGL · EGL ISRAEL · EGL USA · EGLINT · EGLUSA · GCAL · GIA · GSI · HRD · IGI · OTHER · R&F · SGS · UNKNOWN
Ships to	UK	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.

Diamond Quarter

Origin mix

Lab-grown 64%Natural 36%

Most common shapes

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

MOH London

Origin mix

Lab-grown 66%Natural 34%

Most common shapes

Round 44%·Oval 12%·Pear 9%·Cushion 8%

Stones stocked by both

We track 35,497 diamonds currently listed at both stores.

Most common overlap: Round, 0.5ct, natural, E SI1

Explore Round 0.5ct E SI1 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 European Union? Neither store ships there.
Need GIA grading? Both stores carry it.
Need IGI grading? Both stores carry it.
Need HRD grading? Both stores carry it.
Diamond Quarter stocks more natural. MOH London stocks more lab-grown.

Looking for a specific spec?

Browse every retailer in our index, grouped by shape, carat, colour, and clarity. Thousands of spec pages.

Browse where-to-buy by spec

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.