Victorian Solitaire Diamond Engagement Ring in 18kThis original Victorian solitaire diamond engagement ring features a 1. 21 carat old European cut diamond. The center diamond is flush set which is sometimes referred to as a flush set bezel mounting and provides the ring with a very low profile on the finger. Finishing in a buttery 18k yellow gold, this simple and classic design has a captivating boldness that is unique and undeniably appealing.