20G of solid 18K yellow gold 0.75CT asscher cut diamond + 0.86 TCW round diamond cluster The bolts of the Machina Swivel Ring secure the dual-sided vessel to a band, which rotates as the ring face is manually flipped. This mechanical design imbues an elegant brutality while also serving a function, transforming an often-overlooked industrial component into a striking focal point. Handcrafted in New York City