100% NATURAL RUBYQuantity: 1 piece.  Weight: 3.00 Carat.  Gem Type:100% Natural Ruby.  Shape: Round.  Size in millimeter: 8.4 Length. 8.4 Width. 5.2 Deep.  Color: Pigion Blood Red.  Clarity: SI1.  Luster: Very Good.  Origin: Mozambique, Africa.  Treatment: Heated.  Hardness: 9.0.  Refractive Index: 1.760 to 1.770.  Specific Gravity: 4.00.