A very fine Diamond and Sapphire Square “Target” Ring, centrally collet-set with one transitional-cut Diamond, independently assessed as being of 0.85 carats, H colour, and SI1 clarity. The Diamond is surrounded by a square shaped halo of twenty-two calibré-cut natural, unheated, medium dark blue sapphires. The shoulders each contain one single-cut Diamond, and are fixed on a triple wire Platinum shank.
Accompanied by an Independent Gemmological Report confirming the above assessment.
Circa 1920 – 1930