CbyC are very happy and proud to take the next step in their jewelry collection by introducing Lab Grown Diamonds and their Floating Diamond Necklace.These necklaces are a modern blend of fine and demi fine, a consists of a certified diamond pendant with a premium Italian chain in 18K Gold Filled. Lab grown diamonds are diamonds with the same brilliance, clarity, and performance as mined, created in a lab the same way as they are in nature. Their lab grown diamonds are in Color E–F, with clarity VVS-VS, Excellent cut, and all IGI certified. Each stone is individually tested and graded to assure premium quality. They hope that you will fall in love with these pieces just as much as they have done.. Material: 925 Sterling Silver Stone:Lab-Grown Diamond Stone carat: approx. 0.08 ct. (3 mm), 0.15 ct. (3.5 mm) or 0.25 ct. (4 mm) Length of Chain;: 40 cm Does it comes with Certificate: Yes