Gemstone Shape: Cushion Gemstone Type: Sapphire Gemstone Form: Cut Cut Grade: Excellent Gemstone Creation: Natural Shape: Cushion Total Carat Weight (TCW): 0.75 Transparency: Transparent Variety/Type: Blue Colour: Blue Gemstone Colour: Blue Natural Australian Blue Sapphire Gemstone. 0.75 Carat with a deep blue colour & excellent clarity, practically flawless. Also has an excellent cushion cut measuring 5.8x4.5mm. Standard heated like nearly all sapphires on the market. No diffusion or other treatment. Please view our other listings for more fine gemstone & jewellery pieces. 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 were taken at 20x zoom with only natural daylight & no photoshop. All items are sent tracked, signed & insured in nondescript parcels. International Buyers welcome. Indigo Blue Sapphire 0.75Ct Natural Australian Cushion Cut Loose Gem 5.8x4.5mm