Vintage Square Cut Blue Sapphire and Diamond Cluster Ring gold_ring Hallmarks: Hallmarked as 14K Gold

Hallmarks: Hallmarked as 14K Gold

A delicate ring crafted in luxurious platinum

Stone Weight: Estimated central emerald 1

signed by Mauboussin

Above the sapphire sit four round brilliant cut diamonds arranged in a cluster formation

Vintage Square Cut Blue Sapphire and Diamond Cluster Ring gold_ring Hallmarks: Hallmarked as 14K GoldSapphire and Diamond Cluster Ring in Yellow Gold and Platinum A cluster ring set with a square step cut sapphire at its centre. The stone shows a deep blue tone, with flat facets and a clear geometric outline. Surrounding the sapphire is a border of old cut diamonds, each individually set to form a soft, scalloped cluster. The diamonds add contrast and light, framing the centre stone while maintaining a balanced shape. The setting combines platinum