Sapphire and diamond coronet cluster ring. Set to centre with a cushion shape old cut natural unenhanced sapphire in an open back rubover setting with an approximate weight of 1.15 carats, further adorned by eleven round rose cut diamonds in closed back claw settings with a combined approximate weight of 0.45 carats, to a striking coronet cluster design featuring curving claws, an ornate gallery and split shoulders with floral and granulation detailing, flowing through to a solid D-shape shank. Marked 15 carat gold, maker's mark 'P.A' for Philip Antrobus, yellow gold, circa 1860.
