Tennis diamond necklace 14k solid gold Round, natural diamonds Color: I-J Clarity: SI 3 Carat: 212 diamonds on 16 inch necklace 241 diamonds on 18 inch necklace Width: 1.9 mm 5 Carat: 172 diamonds on 16 inch necklace 206 diamonds on 18 inch necklace Width: 2.3 mm 7 Carat: 155 diamonds on 16 inch necklace 174 diamonds on 18 inch necklace Width: 2.6 mm 9 Carat: 147 diamonds on 16 inch necklace 170 diamonds on 18 inch necklace Width: 2.7 mm Push clasp closure with safety latch