Oscar Heyman Midcentury Retro 18K platinum GIA Pinkish Purple Ceylon Sri Lanka No Heat Sapphire Diamond Brooch

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Circa 1940s-1950s, this Oscar Heyman & Brothers 18K platinum GIA pink purple ceylon no heat sapphire diamond brooch is a jewelry collector's dream!

The sapphire measures 8.82x8.68x6.58 or about 4.85 ct by formula, and it has a mesmerizing and vivid pinkish purple tone with great transparency.

There are additional ~0.48ctw white sparkly accent diamonds.[G-H /VVS-VS]

Total weight: 18.50 grams

Measurement: ~82.20x19.15mm

Metal and hallmarks: 18K and signed HB in an "O" circle, which is the trademark for Oscar Heyman & Bro.

About Oscar Heyman & Brothers: it was founded in 1912 in NYC.
The company earned the trade name " The jewelers' Jeweler" at the World Fair in 1939 along with four other jewelers: Cartier, Van Cleef & Arpels, Marcus &Co. And Tiffany&Co

Excellent condition with very minor wear.

*The listing is for the brooch only. All the other accessories shown in the images are for demo purpose only and not part of the sale.

*Due to the value of this item:

-Price reflects a domestic shipping cost of $120, which includes tracking and insurance.
-International shipping uses Fedex, UPS or USPS International Priority.