.18 Marquise Diamond Engagement Ring in 14K Yellow Gold.  This one of a kind diamond engagement ring features a .18 carat Marquise cut diamond in 14k yellow gold. Nestled in a modern, architectural mounting, the brilliant natural diamond sparkles in the center of two accent baguette diamonds, each weighing .035 carats. From the profile, the band forms a solid point of 14k yellow gold, white the setting of the engagement ring has a unique openwork design. This enchanting engagement ring is a future classic like no other!