1/2 Ctw Akari Marquise and Round Cut Diamond Semi-Mount Engagement Ring in 14K White GoldCapturing the essence of Akari, meaning 'light', this semi mount diamond engagement ring creates an exquisite stage for a center stone of your choice. At the heart of the design rise four purposefully contoured white gold prongs, ready for a 2. 75 Ctw to 3. 50 Ctw marquise cut diamond. In the gallery Sleek architectural rails lie just beneath the prongs along the gallery, each thoughtfully pre embellished to ensure radiance from every angle.