Temple St Clair Athena Owl ring 18K gold with 15.2 carats tanzanite, 2.4 carats royal blue moonstone, .306 carats diamond, .3 carats blue sapphire, and .2 carats emerald, $37,000, templestclair ...

The stone is flanked by two emerald-cut diamonds and mounted on an 18k white gold ring. It fetched more than $2.6 million. A 2-carat fancy vivid orange diamond fetched nearly $1.9 million ...

90 Day Fiancé Star Stacey Silva shares the details on her "rare and glamorous" 15-carat tanzanite-and-diamond wedding ring with PEOPLE. See the exclusive photos.