by Petra Class Timeless treasure in high-karat gold. A statement when worn alone, or made to stack and stand out. Each piece of the Petra Class gem collection is unique, or one-of-a-kind (OOAK). May be resized, please email to inquire. 18k yellow gold band + frame 22k yellow gold bezel australian opal textured finish 2.5mm flat band 18.5 x 12.3mm face About the Artist Petra Class grew up and was educated in Germany. After studying art history and philosophy at the University of Stuttgart, she pursued a rigorous traditional education in metalsmithing and design. Petra’s years training as a silversmith constructing tableware informed her approach to jewelry making, inspired foremost by the European tradition of applied art. Petra emigrated to San Francisco and founded the jewelry design studio in 1991. Her classical training and connection to the cutting edge European design world combines with the organic and nature inspired attitude of California to create Petraʼs unmistakable vocabulary. Since then the studio has grown into an atelier and family business, spanning 2 generations across the west coast where a team of gifted metalsmiths create the evolving collection of sculptural, contemporary jewelry. Petra, accompanied by her son Lucas, are the creative forces behind the studio, while her daughter-in-law Phoebe runs operations and several brilliant bench jewelers assist in production. After a fabulous 5-year stint in New York City, the team is based in San Francisco. Petra often splits her studio time between winters in SF and summers in the German countryside where she creates most of the new one-of-a-kind pieces and prototypes. ANY QUESTIONS? While in stock, this item is available in-store and ready to ship. In stock items will ship within 2 business days. Resizing options are available, please inquire. Exchange or store credit is available on all full-priced items with a receipt within 15 days of purchase. No refunds. Items must qualify for exchange, and be unworn and in original condition. Any jewelry that has been custom-ordered, modified or sized we are unable to accept for exchange. Please consult our return / exchange policy and shipping policy for full details. Please note that all jewelry may have slight variations, due to the handmade process and the natural range of stones and materials used. If you would like additional photos or measurements of the item, please contact [email protected] and we’d be happy to assist you in selecting the right piece. We do not issue refunds for these artistic variations.