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TopGemsby K&H
TopGemsby K&H
TopGemsby K&H
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About
Fine Natural Gemstones · Bangkok

TopGemsSourced Directly

Natural precious stones with verified origin and international certification.

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TopGemsby K&H

Fine Natural Gemstones · Bangkok

Gemstones

  • Ruby
  • Sapphire
  • Emerald
  • Spinel
  • Paraiba
  • Tanzanite
  • Tourmaline
  • Garnet

Information

  • K&H Gems DMCC
  • Verify Certificate
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  • Education
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  • For Trade Inquiries

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Contact

    Bangkok
    Jewelry Trade Center
    Si Lom, Thailand
    Dubai
    Almas Tower
    DMCC Free Zone, UAE
    +971 4 455 8844
    info@topgems.com
© 2026 TopGems · K&H Gems DMCC · All rights reserved
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Bangkok office

EXPERIENCE K&H GEMS

In Bangkok

Visit our sourcing headquarters at the Jewelry Trade Center, Si Lom. Explore certified natural gemstones and meet our gemologists in person.

Mon – Sat · 10:00 – 18:00
Sunday · 12:00 – 17:00

VIEW OFFICE DETAILS
Dubai office

VISIT OUR

Dubai Office

International trading hub at Almas Tower, DMCC Free Zone. Wholesale partnerships, private viewings, VIP consultations — by appointment only.

Sun – Thu · 09:00 – 18:00

SCHEDULE APPOINTMENTVIEW OFFICE DETAILS

18 YEARS OF EXPERTISE

Gemological
Excellence

K&H Gems DMCC brings certified natural gemstones directly from Bangkok’s gem markets to collectors, designers, and investors worldwide. Every stone verified. Every origin traced.

  • ◆Direct sourcing from Bangkok gem markets
  • ◆GIA · GRS · SSEF · Gübelin certified
  • ◆Worldwide insured shipping
  • ◆14-day money-back guarantee
CONTACT US

Explore Diamonds

Search over 500,000 natural and lab-grown diamonds

Round cut diamondRoundPrincess cut diamondPrincessEmerald cut diamondEmeraldCushion cut diamondCushionMarquise cut diamondMarquiseRadiant cut diamondRadiantOval cut diamondOvalPear cut diamondPearHeart cut diamondHeart
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The TopGems Commitment

Direct Sourcing

Straight from Bangkok, the world capital of coloured gemstones.

International Certification

GIA, GRS, SSEF, Gübelin, AGL, IGI on every major stone.

Secure Shipping

Fully insured, tracked delivery worldwide.

Money Back Guarantee

14-day return policy on all retail purchases.

Featured In

As seen in leading publications

ForbesRobb ReportBloombergFinancial TimesRapaportNational JewelerArabian BusinessGulf NewsBangkok PostForbesRobb ReportBloombergFinancial TimesRapaportNational JewelerArabian BusinessGulf NewsBangkok Post

International Laboratories

GIAGübelinSSEFGRSAGLIGI

Latest from Education

Gemstone Glossary: Trade Terms A to Z
April 18, 2026

Gemstone Glossary: Trade Terms A to Z

The vocabulary you'll meet on product pages and lab reports, explained in plain English.

How to Buy on TopGems: The Full Walk-Through
April 18, 2026

How to Buy on TopGems: The Full Walk-Through

From browse to delivery — reservations, KYC, payment methods, shipping, insurance, returns. Every step explained.

Certification Explained: GIA, GRS, SSEF, Gübelin and the Rest
April 18, 2026

Certification Explained: GIA, GRS, SSEF, Gübelin and the Rest

Which gem labs matter, what each specializes in, how to verify a report online, and why a certificate is worth the fee above 1 carat.

Natural Gemstones

1.18ct Alexandrite · Oval · Color-Change · SSEF

1.18ct Alexandrite · Oval · Color-Change · SSEF

$42,000
1.45ct Paraiba Tourmaline · Oval · Brazil · Neon Blue

1.45ct Paraiba Tourmaline · Oval · Brazil · Neon Blue

$23,200
5.32ct Colombia Emerald · Octagon · Gübelin · Muzo

5.32ct Colombia Emerald · Octagon · Gübelin · Muzo

$64,000
3.58ct Madagascar Green Sapphire · Cushion

3.58ct Madagascar Green Sapphire · Cushion

$7,690
4.21ct Kashmir Sapphire · Cushion · SSEF Cornflower Blue

4.21ct Kashmir Sapphire · Cushion · SSEF Cornflower Blue

$142,000
2.58ct Pigeon Blood Burma Ruby · Cushion · GRS Certified

2.58ct Pigeon Blood Burma Ruby · Cushion · GRS Certified

$89,500
3.24ct Tsavorite Garnet · Cushion · Tanzania

3.24ct Tsavorite Garnet · Cushion · Tanzania

$8,100
6.89ct Santa Maria Aquamarine · Emerald Cut · Brazil

6.89ct Santa Maria Aquamarine · Emerald Cut · Brazil

$4,150
4.72ct Rubellite Tourmaline · Cushion

4.72ct Rubellite Tourmaline · Cushion

$2,360
2.88ct Burma Red Spinel · Octagon

2.88ct Burma Red Spinel · Octagon

$8,640
View all gemstones →