BLUE SAPPHIRE UNHEATED FLAWLESS 1.34 CTS 19505 BEAUTIFUL DEEP BLUE. 7.2 x 5.5 x 3.6 mm. 100% Natural - Not treated in any way. Beautiful Center-stone for an engagement Ring. Will make a Gorgeous pair of earrings Calibrated size: Tolerance +/-0.05mm will fit into standard precast mounts Gem with High Lustre and Good Clarity.
Blue Sapphire: The most sought after color of Sapphire Chosen as the ideal gift for Royality. UNHEATED SAPPHIRES - Almost all Sapphires mined Raw or Geuda form are Heat Treated to high temperatures to induce color and to enhance clarity and lustre. This process is now the Industry Standard for Sapphires. Certified "No Thermal Treatment" (Please see Certificate). This gem is 100% Natural with Natural color.Not Treated in any way. 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. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones".
The seller is "cresla" and is located in this country: LK. This item can be shipped worldwide.