Sapphire, Diamond, 18k Yellow Gold Ring. Centering thirteen round-cut sapphires weighing a total of approximately 0.48 cttw., accented by thirty-four round brilliant-cut diamonds weighing a total of approximately 0.72 cttw., set in an 18k yellow gold mounting. {Size: 6 1/2, Gross Weight: 4.1 dwts} Provenance: From the esteemed collection of Amir H. Mozaffarian Fine Jewels Since 1883, San Francisco CA.