Stunning Platinum, 1930's handmade Cushion cut Spinel ring, with old European cut Diamonds

Stunning Platinum, 1930's handmade Cushion cut Spinel ring, with old European cut Diamonds - Platinum (acid tested) 11 stone Spinel & Diamond ring. Cushion cut black Spinel rub over set with 5 old European cut Diamonds grain set at each end with grooves swept up shoulders on a 1/4 round 1mm band. - Spinel 1 @ 11.4 x 11.2 x 5.28mm = 4.50cts black - Diamonds 10 @ 2.7 - 1.8mm = 0.50cts E/F SI (one with small chip) - Total ring weight = 5.33 grams Manufacture - Handmade Circa 1930 (Centre stone modern)