Natural Unheated Blue Sapphire with GGTL Certificate. The gem is well cut and would look stunning in a piece of jewellery or as a part of a collection. Top color, A valuable collector piece. Treatment : Unheated Weight: 2.41 ct ct Size: 8.65 x 7.31 x 4.79 mm Cut: Oval.Clarity: VVS Origin: Sri Lanka Hardness: 9 on Moh's Harness Scale. The item "GGTL Certified 2.41ct natural unheated Blue sapphire loos gemstone VVS clean" is in sale since Saturday, April 6, 2019. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Sapphire\Natural Sapphires". The seller is "magma_gems" and is located in Boronia, VIC. This item can be shipped worldwide.