It's set with an onyx that is inlaid with a gold "F"

This perfectly enameled piece looks like as stylized triskele

Measures: 29 x 10 mm

Marks: "375" Stamped on the reverse

This piece has a lovely profile on the finger

Modernist 18K Gold Diamond Hoop Earrings Charms It's set with an onyxThese posh brushed finished 18 karat yellow gold hoops are truly stunning, easy to transition from day to evening wear. The yellow gold creates a perfect background for the bright diamonds sleekly channel set on the edges of these hoops! Easy and comfortable to wear, the hinged hoops lock in to place. Metal: 18K Yellow Gold Gem: 10 Diamonds totaling . 25 Carats, VVS in Clarity, G in Color Gem Measurements: 1. 5 mm, Round Earrings Length: 16 mm