Image 1 of 3 Image 2 of 3 Image 3 of 3 Center Diamond Ring $1,200.00 18k white gold 0.3ct halfway set single center diamond ring. Also available in yellow gold and pink gold. Color: White Gold Yellow Gold Pink Gold Quantity: Add To Cart Added! 18k white gold 0.3ct halfway set single center diamond ring. Also available in yellow gold and pink gold. 1.49g