Oscar Heyman Platinum Circa 1925 Diamond And Calibre Cut Green Emerald Bracelet. This is an authentic Oscar Heyman Art Deco diamond bracelet from 1920's. This sleek antique piece features beautiful craftsmanship and an intricate design that we love from Art Deco pieces. A very wearable piece that is also elegant and timeless. This antique jewel features calibre cut green emeralds, old cut marquise, old mine round cuts and straight cut diamonds having a total weight of approximately 7.00 carats. Center: 1.05ct Dia: 6.75 H-VS2 average Center Diamond Weight: 0.00 Measurements: L: 7 inches Metal Type: Platinum Metal Weight: 31.3 gr. Signed: Oscar Heyman Condition: Excellent. Vintage. Stock: RR8630