Here is a 20" Long 10.00Ct Tanzanite Necklace in Sterling Silver. This is part of a Jewelry Store stock that will be auctioned this week. This has bright medium purple Tanzanite Ovals prong set all the way around the neck. The total Tanzanite weight is approximately 10.00Cts. This is marked 925 for Sterling Silver. Tanzanite is the December birthstone. This has a double locking safety clasp. This 10.00Ct Tanzanite Oval 20" Necklace will be auctioned to the highest bidder at $1 No Reserve.