Channel Set Synthetic Sapphire Flex Style Bracelet. Forty (40) French cut, lightly included, medium dark blue Sapphire, Corundum. Approx. 4.50 x 3.50 x 1.90mm. Synthetic sapphires are channel set in a linear style flex bracelet that measures 7.00mm in length w/a hidden tongue and box style clasp w/a flip over safety clasp. 13.63 DWT TGW. Two (2) missing Synthetic Sapphires. Channel Set Synthetic Sapphire Flex Style Bracelet. Forty (40) French cut, lightly included, medium dark blue Sapphire, Corundum. Approx. 4.50 x 3.50 x 1.90mm. Synthetic sapphires are channel set in a linear style flex bracelet that measures 7.00mm in length w/a hidden tongue and box style clasp w/a flip over safety clasp. 13.63 DWT TGW. Two (2) missing Synthetic Sapphires.