Diamond tennis necklace 14k solid gold Round, natural diamonds: Color: I-J Clarity: SI Push clasp closure with safety latch Half coverage: 84 round, natural diamonds for 16 inch necklace: Total carat weight: approximately 1.58 Width: 2.2 mm 100 round, natural diamonds for 18 inch necklace: Total carat weight: approximately 1.90 Width: 2.2 mm Eternity coverage: 166 round, natural diamonds for 16 inch necklace: Total carat weight: approximately 2.00 Width: 2.3 mm 185 round, natural diamonds for 18 inch necklace: Total carat weight: approximately 2.30 Width: 2.3 mm