1.51 GIA Diamond Solitaire Engagement Ring in 14k White Gold.  This dreamy solitaire engagement ring features a GIA-certified 1.51 carat Round Brilliant cut diamond finished in 14 karat white gold. The center diamond is eye clean and colorless, with facets that allow for the maximum amount of brilliance and fire. The diamond is set cathedral style, with four white gold prongs. Finished on a polished 14 karat white gold band, this modern engagement ring is a timeless beauty.