Tiffany & Co. Art Deco 3.21 Carat Old Mine Cushion Cut Diamond Vintage Engagement Ring blue zircon unheated sapphire is rare and

unheated sapphire is rare and always desirable

Edwardian vintage engagement ring made in 18k yellow gold and platinum

36 carat old European cut diamond executed in the manner of the original 1887 Tiffany & Co

Edwardian jewelers created pieces that appeared light and ethereal while remaining durable

Tiffany & Co. Art Deco 3.21 Carat Old Mine Cushion Cut Diamond Vintage Engagement Ring blue zircon unheated sapphire is rare andA spectacular Tiffany & Co. Art Deco engagement ring, circa 1930. This heirloom piece features a GIA certified 3. 27 carat antique old mine cushion cut diamond, secured in elegant four prong settings. Characterized by its slightly rounded square shape and large, open faceting, the old mine cushion cut is a precursor to the modern cushion cut. First crafted in the early 18th century, this cut showcases the artistry of hand cut diamonds. Flanked by a