GIA report verification: 6412969133 Shape.......... Octagonal Cutting style.......... Modified Brilliant Cut Transparency.......... Transparent Color.......... Gray-Blue Species.......... Tourmaline Weight : 6.25 carats Measurements : 12.66 - 8.48 x 6.07 mm Comments : None This kind of gray-blue tourmaline is a great addition to your collection. Tourmaline is often prized for its vivid colors, particularly the paraiba variety and the multicolored ones. Gray tourmaline however, although not particularly lustrous, is rare to find in this size and with good clarity. So... don't miss the opportunity for this auction of a precious, perfectly cut tourmaline, as you might not get one again! Insured international shipping with Track & Trace Beware that any import fees and VAT are your own responsability and are not included in the price collected by Catawiki unless otherwise mentioned at check out