White gold NATURAL DIAMOND radiant cut by the yard necklace. 1 x radiant cut DIAMOND i (included ) QUALITY. soft white (i/j) color, .85 ctw ( 8.3 x 5 x 2.1 mm ). dimensions: 8.4 mm x 5. mm center, 1.4 mm chain, 18 a€? long, weighs 2.8 grams, marked 10kt.