An antique Sapphire and Diamond ringA beautifully preserved antique 18 carat gold boat shaped ring, fully hallmarked for Birmingham 1917, and still encapsulates the refined craftsmanship of the late Edwardian era which this style mimics. Gemstones Three natural sapphires in rich mid to dark blue tones Centre stone: oval to cushion cut, 6 x 5mm Two outer stones: oval cut, 5 x 3mm each Four old rose cut white diamonds Two set on each side of the centre sapphire Approx. 1. 3mm each Design