The 1971 NBA All-Star game made a rare appearance in San Diego, California, but something that was not rare was the presence of Oscar Robertson, making his 11th straight ASG showing. The Big O's Western Conference team won that affair by a narrow 108-107 margin, and this ring was presented to the future Hall of Famer for his participation. In NM condition, the size 13.5 ring is highlighted by a beautiful blue star sapphire on top, stamped 14K inside and engraved "O.R. San Diego Cal. 1971." The outside of the ring has two stars on one shank and "NBA" on the other. That All-Star game wasn't the only big victory that season, as Oscar and the Bucks went on to win the franchise's only NBA Championship.