Art Deco Diamond & Emerald Solitaire Ring Size:4 With a fine open worked

With a fine open worked gallery and dates from the Edwardian period

The prominent carving also serves to showcase labradorite's unique optical effect known as schiller - in this case with a shimmering green-grey colour

it's used only for the moment of crowning itself (the monarch's "day-to-day" is the Imperial State Crown

potentially has been converted from a brooch

Marks M/S and A/S for mine sweeping and anti-submarine warfare

Art Deco Diamond & Emerald Solitaire Ring Size:4 With a fine open workedDATE: Art Deco, c. 1920 A dainty antique solitaire ring set with a vibrant natural emerald, resting between diamond accent shoulders. It's crafted in platinum throughout and dates from the Art Deco period, circa 1920. STONES 0. 89ct Natural Emerald Old Cut Diamonds MEASUREMENTS Head: 7. 8 x 5. 9mm Rise off finger: 5mm Width of band: 1. 5mm WEIGHT 2. 8g MARKS Stamped PLAT CONDITION Very good