This Art Deco platinum solitaire engagement ring features a stunning 1.51 carat GIA-certified cushion cut diamond with timeless elegance. Certificate: GIA #5473197945 Center stone: Cushion cut diamondWeight: 1.51 caratColor: KClarity: VS2Metal: Platinum Era: Art DecoCirca: 1930'sHallmarks: Numbered and purity markSize: 5.75 and can be resizedGram weight: 3.18