MGR Jewelry
Gemologist inspecting a pink gemstone with a loupe

Gemstone trading

Loose Gemstones & Diamonds, Wholesale from Bangkok

Certified diamonds, precious and semi-precious stones for jewelers and brands — single stones, matched pairs and calibrated parcels, selected by GIA-certified gemologists.

Stones in stock and on order

Diamonds

GIA-certified single stones, plus calibrated melee for pavé work. Natural and lab-grown.

Round brilliant · fancy shapes · melee parcels

Precious stones

Sapphire, ruby and emerald — centre stones, matched pairs and calibrated sizes.

Singles · pairs · suites for collections

Semi-precious

Amethyst, rhodolite, blue topaz and more, calibrated from 2 mm for production runs.

Brilliant · princess · rose cut · bullet

Pearls & organics

Pearls, mother-of-pearl and hard stones for inlay and statement pieces.

Pearls · mother-of-pearl · pietre dure

Irregular & artisan cuts

Raw, free-form and one-of-a-kind cuts for designer pieces.

Free-form · rough · specialty cuts

Looking for a specific stone?

Send type, size, colour and budget. We search Bangkok's dealers for you.

Blue sapphire set in a ring, held between fingers

Bangkok is where the world's coloured stones are cut and traded

Graded before you pay

Every stone checked by our gemologists. Lab reports on request.

Photos and video of the actual stone

You approve the stone you'll receive, not a stock image.

Set here, or shipped loose

Buy stones alone, or have them set in our workshop.

Insured worldwide shipping

Tell us what you're looking for

We reply with available stones, photos and prices within 24–48h.

Photos or a reference (optional)

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