A Gem of Lasting Beauty. Among the Rarest of gemstones. Refractive Index: 1.759-1.778 Hardness: 9 Chemical Comp: AL22O3 Density: 4.00 Crystal Group: Hexagonal. The Sapphire belongs to the corundum group, with excellent hardness, exceeded only by Diamond the hardest mineral on Earth.The oldest sapphire finds are in Ceylon, or Sri Lanka as it is known today where they are mined from ancient times. Ceylon sapphires are recognized by the luminosity of their light to mid-blue colors.
Ranging from blue to purple and pink. Top-quality sapphires are extremely rare. Beauty, magnificent color, transparency, and durability are the main features.
Color determines the value of a sapphire. Sri Lanka is known for the finest and the largest sapphires in the world. Add a map to your own listings. The item "NATURAL STAR RUBY DARK RED 1.30 CTS NATURAL SRI LANKA GEMSTONE 18744" is in sale since Saturday, August 25, 2018. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Ruby\Natural Rubies".
The seller is "cresla" and is located in Colombo. This item can be shipped worldwide.