This vintage yellow gold mounting is perfect, using four simple prongs to create structure and visual interest. We've set this piece with a modern, large oval blue topaz. The color of this stone is bright, a rich cyan, almost turquoise color. This would make a lovely cocktail ring, and is also a sturdy enough stone to wear daily! Metal: 14K Yellow GoldGem: Blue Topaz 22.25 CaratsGem Measurements: 15.0 x 23.1 mm, OvalRing Size: 7.75