Kothari Trading was founded by diamantaire brothers, Raju and Suren Kothari. Over the course of 35 years, they expanded their business to dealing the finest precious stones, such as rubies, sapphires, emeralds, and natural fancy colored diamonds. We are headquartered in Hong Kong, with offices in Tokyo, Bangkok, and Taiwan, and have a global presence at trade shows and fairs worldwide.
Rare & Unique Gems
The brothers are trusted sources for adventurous and unique gems. The more unusual the color, the rarer the stones are. Clients turn to our experience when seeking specialist advice to ensure they are making a sound investment. Our expert knowledge guarantees the provenance and authenticity of each stone to ensure its true value. By sharing our passion for colored stones, we develop a close relationship with clientele and our bespoke offerings ensure that our customers can expect unparalleled service for generations to come.
Clients seek to buy stones from us due to the exceptionally high quality of goods. The brothers are known for their ability to curate interesting, rare and special gems from around the world. We serve many clients globally, including famous brand houses and jewelers, who see us as trusted suppliers due to our reliability, discretion and high quality.
Miami The Original Miami Beach Antique Show - January 2023
Tucson Gem and Jewelry Exchange - February 2023
Hong Kong International Jewellery Show - March 2023
Geneva Gem Geneve - May 2023
Las Vegas The Couture Show - June 2023
Hong Kong Jewellery & Gem Fair - June 2023
Hong Kong Jewellery & Gem Fair - September 2023
Geneva GemGeneve - Nov 2022
Kothari Trading (HK) Ltd. is a member of the Responsible Jewellery Council and in compliance with the standards set out by them. To read more about our Policies regarding Supply Chain, Sourcing and Due Diligence, please refer to this document.