Cole Thynne on Instagram: "This 22-carat optical quartz is ornamented on a rose engine lathe, where a finely controlled guilloché pattern is engraved into its surface with precision. Rather than faceting on the lathe, the stone’s form is defined first. The engraved geometry interacts subtly with light, creating a quiet brilliance that reveals itself. #gemstone #jewellery #lathe #roseengine #plumier"

V.M. Saph Brooks on Instagram: "🪲18k Green Gold and Tourmaline Scarab pendant with glass enamel wings. Hand fabricated, Hand carved, and Hand turned patterns on rose engine lathe."

Guilloche, Rose Engines, Jeweling, & Engine Turning for Artistic Machining