Vintage Square Cut Blue Sapphire and Diamond Cluster Ring gold_ring Above the sapphire sit four

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

The diamonds are grouped in pairs and set within marquise shaped settings

signed by Mauboussin

The gently textured

Art Deco Style Emerald and Diamond Ring in 18 Carat Gold

Vintage Square Cut Blue Sapphire and Diamond Cluster Ring gold_ring Above the sapphire sit fourSapphire 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