A Dainty Antique 9ct Rose Gold Opal Ring The ring features five oval opals, the middle opal measures 6 x 4mm. Size: N 1/2 US Size: between 6.75 - 7 Weight: 2.2g approx. UK hallmark for 9ct gold assayed in Chester made in 1907. Condition: Good - Two short prongs to one opal, the stone is still secure. All items are pre-owned and may show light signs of use.