Description

This Gem Is 100% Natural With Natural Color. Not Treated In Any Way.
Beautiful Center-Stone For An Engagement Ring.
Will Make A Gorgeous Ring Or Pendent Accented With Diamonds.
Gem With High Luster And Good Clarity.
Large Sizes Are Extremely Rare.
A Gem Of Lasting Beauty.

UNHEATED SAPPHIRES - Almost All Sapphires Mined Raw Or Geuda Form Are Heat Treated To High Temperatures To Induce Color And To Enhance Clarity And Luster. This Process Is Now The Industry Standard For Sapphires. This Sapphire Is UNHEATED. Certified No Thermal Treatment(Please See Certificate)

Refractive Index: 1.759-1.778
Hardness:9
Chemical Comp:AL2O3
Density: 4.00
Crystal Group: Hexagonal

Rubies That Display Asterism Are Cut En Cabochon To Stars And Are Called Star Rubies Which Are Exceptionally Beautiful And Expensive.Sapphires Colored By Chrome, Are Called 'Rubies' - The King Of Gemstones.For Thousands Of Years, The Ruby Has Been The Most Valuable Gemstones On Earth. It Has Everything A Precious Stone Should Have: Magnificent Color, Excellent Hardness And Outstanding Brilliance. Fine Rubies Are Extremely Rare.Top-Quality Star Rubies Are Extremely Rare. Sri Lanka Is Known For The Finest And The Largest Sapphires In The World.