CorundumStones Mining Estate

We receive premium quality gems directly from mines in Sri Lanka & Madagascar. Every single precious gemstone in our catalog is certified by a reputable Gem Laboratory. Our focus lies in single origin, unheated sapphires, masterfully handcrafted cut. Roughly 85% of our material is entirely untreated, directly from the mine to the auction. The remaining 15% heated only stones are clearly marked as such. Every single item in our catalog is unique and certified by a reputable Gem Laboratory.