Vintage 9ct Gold Synthetic Blue Spinel Cocktail Ring, Dublin 1967, UK L / EU 51 / US 5.75

Vintage Irish 9ct gold cocktail ring set with a large rectangular step-cut synthetic blue spinel in a raised four-claw open-back setting.

The ring is hallmarked in Dublin and dated 1967. The interior carries the .375 fineness mark for 9ct gold, Dublin assay marks, the Thomas O’Connor & Sons Ltd sponsor/responsibility mark, and the date letter for 1967.

The design features tapered open shoulders and a plain yellow-gold shank, giving the ring a strong 1960s cocktail and statement-ring profile.

Supplied with its original wooden presentation box.

Assay office: Dublin
Date: 1967
Sponsor mark: Thomas O’Connor & Sons Ltd
Period: 1960s

Measurements
Ring Size: UK L / EU 51 / US 5.75
Inside diameter: approx. 1.63 cm / 0.64 in
Inside circumference: approx. 5.12 cm / 2.02 in
Weight: 8.5g

Condition: Very good vintage preowned condition. Please review all photographs as part of the condition description.