30 Carat Cabochon Blue Sapphire and Diamond Double Halo Cocktail Ring

A rare piece of jewelry showcasing a single large cabochon blue sapphire, surrounded by two rows of round brilliant diamonds. Set in an 18k white gold mounting.

Blue sapphire weighs approx. 30.00 carats with certificate (attached)
Diamonds weigh 3.00 carats total.
Size 10 US (sizing, engraving, custom piece available).
1.25 inch (L) x 1.13 inch (W)
Period: Circa 1980’s