Szorstruck tiny necklace pave set with natural colored blue & white DEG/VVS brilliant-cut diamonds 0,15 ct. 18K white gold 2,4 g. Necklace length : 15.74 inches + 0.787 inch Extension. ( 40 cm + 2 cm extension.)  The Natural coloured purple diamonds are natural colour treated diamonds, the colour is permanent unless they are subject to temperatures above 450°/850°F.