ADAMANS Lab Diamonds are industry leading and is completely colourless. Some brands use Lab Diamonds that has a slight yellow hue, meaning it's not completely colourless and does not imitate a real diamond. Our Lab Diamonds outshine everything. They will test positive as diamonds on most handheld diamond testers. At 20 inches, this diamond cuban link chain contains 109 grams of 925 Silver and showcases an impressive 13.72 CTW of radiant, lab-created diamonds, delivering an unmatched sparkle and brilliance. Specifications: 18 inch - 12.4ctw VVS1 & 97g 925 silver 20 inch - 13.72ctw VVS1 & 109g 925 silver 22 inch - 15.04ctw VVS1 & 119g 925 silver 24 inch - 16.4ctw VVS1 & 129g 925 silver Diamonds: 0.1ctw IGI certified lab diamonds (VVS1) Width: 8mm 18" = 45cm20" = 50cm22" = 55cm24" = 60cm Your Adamans Cuban Link Chain ships fully insured and will require a signature upon delivery for extra security.