4.66ct order Green diamond necklace

Product Name: 4.66ct order Green diamond necklace
Beautiful round brilliant cut blue green diamond necklace. 4.66ct, pendant measures a total length of 1.1". Heat and pressure treated to get the beautiful blue green color. Comes on an 18" sterling silver chain. This was given to me (along with a ring, that I am also selling) and I tested it with my little diamond tester and got beeping for the green diamond and the smaller stones surrounding it. I am not a professional jewlery or diamond specialist, not have I taken it to one for any authentication. I just want to be clear and honest. It comes with an AGI certificate you can see online. Feel free to as any questions. Thank you order.