I recently received this from my mother, who purchased it on GSTV. However, I don't think I'll be using it, so I'm putting it up for sale. I don't have the delivery receipt, so I don't know the exact details of the gemstones. (It looks like lapis lazuli and tanzanite, maybe?) The small blue beads are opaque and the cut surfaces sparkle. The 11 larger, pale blue stones are transparent. The clasp is SILVER. The total length is about 51.5cm. I believe this is a GSTV product, so it should be genuine, but since I don't know the details of the gemstones, I hope you'll consider it if you like the design. It will be shipped without a box, just the necklace, via Yu-Packet Post Mini. There's nothing particularly noticeable, but it's been stored at home, so please refrain from purchasing if you are concerned about minor details. Thank you for looking.