The ring features an oval-shaped opal cabochon measuring 21.25 x 11.43 x 7.79 mm and weighing approximately 10.75 carats, surrounded by full-cut diamonds weighing a total of approximately 1.65 carats, accented by round-cut emeralds weighing a total of approximately 0.95 carat, set in 18k gold, marked H.B & Co. for Herbert Bushell & Co. Ltd., English hallmarks. Gross weight 10.00 grams. Size 7 (sizeable)
Condition
Designer: Herbert Bushell & Co. Ltd
Diamond Average Color: G-H-I
Diamond Average Clarity: VS
Diamond Shapes: Full-cut
Diamond Count: 1 - 25
Gem Type: Opal and Emerald
Gem Average Clarity: Good
Gem Shape: Oval-shaped cabochon and Round-cut
Gem Count: 1 - 25
Overall Condition: Very Good
Notes: Opal displays green, blue, purple, yellow, orange and red flash. Opal is crazed. Marked: 1955 H.B & Co 750, London assay marks dating to 1976.