An 18 Karat Yellow Gold, Diamond, Rock Crystal and Onyx Ring, French, attributed to Boivin, consisting of a central carved rock crystal plaque flanked on both sides by onyx sections, the mounted edged with 32 round brilliant cut diamonds weighing approximately 3.00 carats total. Stamp: 5479 (French assay and partially obscured maker's mark).Hand inscribed: (Scratchmark 8811). 17.30 dwts.