A vintage 1990s Sapphire and Diamond ring (Hallmarked 1997)An elegant and timeless cluster ring featuring a striking ink blue to black square cut sapphire measuring approximately 4 x 4 mm, secured by corner claws. Surrounding the sapphire are twelve brilliant cut white diamonds, each around 2. 4 mm, with a total estimated diamond weight of 0. 60 carats. The cluster head measures 8. 8 x 8. 8 mm with a depth of 5. 5 mm Crafted in 18 carat yellow gold, the ring has a total weight of 3. 2 grams and is hallmarked