Crafted by Nature

The most unique, most selective inventory of untreated gemstones of every color and cut.


Who are we

K.V. Gems is a labor of love and appreciative passion for precious and semi-precious gemstones. Established by Mr. Joseph Thomas Belmont and Mrs. Pirapan Belmont in 1984, their vision is now shared by more than 50 staff in what remains a family-run business. We specialize in the highest quality, unheated natural gemstones, working directly with the world's leading suppliers and buyers.


Our Stones

Our inventory takes in Sapphire, Ruby, and Spinel, as well as semi-precious stones. We take pride in working with the most unique, selecting inventory of unheated gemstones of every color and cut. From gems to pave, to custom jewelry designs, to one-of-a-king investment pieces, our rare gemstones are selected and cut to your desires.

Our Partner Lab

We certify all our stones before and after recutting for stones as small as 1ct with the most reputable gemological laboratories in the industry, such as AGL, SSEF, GRS and GIA. This ensures authenticity and accuracy of geographic location and treatments, while instilling confidence in, and increasing the value of, our gemstones.


See our upcoming exhibitions around the world.

February 27, 2024 March 2, 2024

HKTDC Hong Kong International Diamond, Gem & Pearl Show 2024

Booth 8-E05

May 8, 2024 May 12, 2024

GemGenève May 2024

June 20, 2024 June 23, 2024

Jewellery & Gem Asia Hong Kong 2024

Hong Kong Convention & Exhibition Centre (HKCEC)

September 16, 2024 September 20, 2024

Jewellery & Gem WORLD Hong Kong 2024

Asia World-Expo (AWE) Booth 6T02


Our long-term relationship and trust with suppliers allow us to source natural, unheated gemstones first-hand, and to see production outputs ahead of the market. Every gem is individually hand selected by our trusted, experienced sorters, ensuring a selection of only the cleanest, most evenly color gems.



Gemstone cutting is an art form, a science, and a passionate discipline. Our lapidary is made-up of highly skilled team of cutters who have a deep understanding of the mineral and its character. The careful planning and execution of our cutting process enhances color, clarity and shape while retaining the most weight possible.



Sorting is an integral part of the triangle, along with cutting and sourcing. Highly trained, experienced sorting staff are responsible for finding the right gemstones for particular jewelry designs requested by our clients, which gives us a competitive advantage in the market and saves our clients time and effort.