Art Deco 18ct Yellow Gold and Platinum Diamond and Sapphire Pin

1 Diamond, cut: old cut, color: N, clarity: I1, dimensions: 3.3mm, weight: 0.14ct
12 Sapphires, trapezoid cut , dimensions: 1.7 x 1.3mm AVG., total weight: 0.24ct, color: deep blue

Setting diameter: 7.7mm, length: 66mm, weight: 1.4 grams