A sapphire and diamond ring, of navette outline, centring on an oval sapphire weighing approximately

A sapphire and diamond ring, of navette outline, centring on an oval sapphire weighing approximately 0.90 carats, within a border of cushion-shaped diamonds, mounted in gold, size I1/2

Sapphire measuring approximately 6.6 x 5.3 x 3.6mm, calculated weight approximately 0.90-1.00 carat, likely a later replacement in ring, pretty, slightly violet blue, good clarity, good condition. Estimated total diamond weight approximately 0.60 carats. Gross weight 4 grams.