Thank you for viewing. This is a Phiten black spinel x gold x titanium necklace. I used it about 2-3 times a week for about six months after purchasing it, but it has been kept in its case since I stopped using it. I think it's a rare item that's hard to find these days. The genuine gold accent is eye-catching, and the sparkling black spinel makes this a lovely necklace. I measured it. The total length is about 45 cm, but the chain part is about 5 cm long, so it can be adjusted from 40 to 45 cm. *See photo 6 Phiten bonus included