Antique Opal Charm of 14k Gold agate necklace It is marked 18k gold

It is marked 18k gold and also bears an unknown maker's mark

A dramatic Swiss enamel pendant (circa 1840-1860) accented with bold black and white enamel

The charm was originally an antique cufflink (circa 1920)

this appears simply as normal wear consistent with age

The piece is silver topped 14k gold and the bail is also 14k

Antique Opal Charm of 14k Gold agate necklace It is marked 18k goldAntique Opal Charm: This 14k gold charm features a trefoil of three opals accented with a tiny diamond. The charm was originally an antique part (circa 1900) that our jeweler transformed by adding a jump ring bail. The piece measures 0. 8 inches from the top of the jump ring to bottom by 0. 3 inches wide and weighs 0. 85 grams. It is in good condition; however, upon close inspection you can see crazing to one of the opals. Upon purchase, your charm