A Roman gold and garnet ring, circa 2nd-3rd century AD. Estimation: USD 2,000 - 3,000. Photo Christie's Image Ltd 2015

ormed from two hoops, each rounded on the exterior, concave on the interior, expanding to the bezel, with a collar-set cabochon garnet framed by spiral and plain wire filigree, with filigree volutes on the shoulders, the two hoops joined by a spiral filigree wire punctuated by granulation, and centered by a Herakles knot of beaded wire - 5⁄8 in. (1.5 cm.) wide; ring size 3½

PROVENANCE: with Joseph G. Gerena, New York, 1999.

Christie's. Ancient Jewelry sale - Online auctions December 1 -10.