I’m a big fan of iridescent stones like moonstone and opal so this necklace is a no-brained for me.
By Theodosia Jewelry it is accented with diamonds and comes with a fixed chain: “The prettiest blue opal ever is set in 14kt gold and diamonds and then has six sparkling bezel set diamonds dangling from it. Beautiful for everyday or as a special occasion piece. Chain is 14kt gold and adjustable so that it can be worn from 14 inches to 16 inches.”
This is priced at USD$2,080.