Non Heat Treated Sapphires
Natural untreated sapphires are far more uncommon and valuable than treated and chemically altered stones.
Non heat treated sapphires. Unheated sapphires are rare and expensive but available. Heating is an accepted treatment for sapphire. Good quality unheated sapphires will cost you. Discover what it means for a sapphire to be treated how to identify them how these processes affect the rarity and integrity of a stone.
But for fine quality sapphire confirmation from an independent laboratory like gia that there is no evidence of heat adds to a sapphire s rarity and value. Depending on colour vivid fiery broadly speaking unheated sapphires below 2ct to 3ct will range between usd800 per carat to usd3 000 per carat. The key term is untreated meaning a sapphire is natural not lab created and has not been subject to any chemical or heat treatments. Our sources of natural unheated sapphires are madagascar australia sri lanka and thailand.
Learn how heat treatments beryllium diffusion flux healing fracture filling and irradiation change the look of sapphires on the market today and into 2020. Unheated sapphires below 2ct or 3ct are affordable but the price jump is exponential for sapphires above 5ct. Whereas heat treated sapphires are an affordable option and have made it possible to reach every brick and mortar and online retailer around the world natural unheated sapphires are highly coveted for their natural appeal rarity and sustained value.