Gemstone: Sapphire Transparency: Transparent Shape: Oval Treatment: Standard Heated Cut Grade: Very Good Total Carat Weight (TCW): 0.90 Country/Region of Manufacture: Thailand Variety/Type: Blue Gemstone Creation: Natural Country of Origin: Thailand Colour: Blue Natural Sapphire with beautiful deep royal blue colour. Mined in Thailand, rare source for sapphires. 0.90 carat stone with very good clarity, very clean stone. A beautiful sapphire with an excellent oval cut & ideal polish to show great shine & colour, would look lovely in jewellery. Measures 6.6x5.2mm Standard Heated like nearly all Sapphires on the market. No diffusion or other treatment. We also stock untreated stones so please view our other items Please view our other listings for more fine gemstone & jewellery pieces. Our stock is stored offsite in a safe deposit vault so there may sometimes be delays in dispatch. All our products are tested by a gemmologist with the following qualifications: - Distinction grade in gemmology with the Gemmological association of Great Britain (Gem-A) - Accredited jewellery professional (AJP) with the Gemmological institute of America (GIA) - Fellow of the Gemmological association of Great Britain (FGA) We only deal in natural, earth mined gemstones & describe all our listing as accurately as possible. Photographs taken at 20x zoom with only natural daylight & no photoshop. All items are sent tracked, signed & insured in nondescript parcels. International buyers welcome, we ship to all destinations throughout the world. Natural Royal Blue Sapphire 0.90Ct Oval Cut Thailand Loose Gemstone 6.6x5.2mm