Sapphire and diamond brooch

Of quatrefoil design, centered with a round purple sapphire weighing 3.86 carats enhanced with rose diamonds.

• Dimensions 39 x 16 mm
• French import assay marks for platinum and 18 carat gold
• 1910s
• Gross weight 4.17 grams
• Accompanied by CGL report no. CGL349339, dated 28th January 2026, stating the sapphire is of Ceylon origin with no evidence of thermal enhancement.