gold cluster ring with pink sapphire and diamond

An 18-carat white gold cluster ring with an oval faceted bright pink sapphire set in a claw setting surrounded by 8 brilliant cut diamonds (total app. 0.35 crt), signed JP for John Petterson, Stockholm, 1964.

weight: 3.41 g
ring size: 17.25 mm / 6.75 US / 54
dimensions: 4.7 x 3.4 x 2.5 mm