A sapphire and diamond cluster ring, 20th century

Centred by a rectangular shaped sapphire measuring approx. 12.58 x 8.03 x 6.77 mm, surrounded by a double 18 carat gold mount of 36 modern brilliant-cut diamonds. Total estimated diamond weight approx. 1.00 ct, colour ca. H-J, clarity ca. VS2-SI1 Tot