1.51 Marquise Cut GIA Diamond Engagement Ring in 14k.  This modern engagement ring features a 1.51 carat GIA-certified marquise cut diamond finished in 14 karat yellow gold. The center diamond is colorless and has an impressive clarity rating. The intricate marquise cut facets complement the size of the center stone. The primary diamond is flanked by two (2) .11 carat diamonds. All of the diamonds are prong set in yellow gold.  From the profile, the diamonds are set on an elevated basket mounting with an openwork gallery.