Antique Victorian 18k Gold & Platinum Halo Ring — 1.5ct Australian Opal & Diamon For Sale

An antique halo ring from circa 1850 in 18k gold and platinum, centered on an Australian opal of approximately 1.5 carats — a stone alive with fire. Red, green, yellow, blue, violet, orange: the play of color moves across the surface of the opal with every turn of the hand, never showing the same face twice. Australian opals are the benchmark of the species — the source of the finest and most vivid play of color found anywhere in the world. A stone displaying this full spectrum of fire. The opal is surrounded by a halo of 20 rose-cut diamonds of approximately 0.40 carats total weight. The reverse of the setting is finely worked. Details Period: Antique victorian, circa 1850 Metal: 18k gold and platinum Central stone: Australian opal, approx. 1.5ct — multicolor play of fire Accent stones: 20 rose-cut diamonds, approx. 0.40ct total Plateau dimensions: 17 x 14 mm Total weight: 4.2 g Size: 60 FR — 9.25 US — S UK Hallmarks: Mascaron (platinum) and owl mark (18k gold) Condition: Very good. Minor gold repairs consistent with age.