The Cosma Ring | Diamond

This ring is a made-to-order piece and will ship within 8 weeks.

Each ring begins with its own custom design and is personally reviewed before it enters production. It is crafted with care—one at a time—and thoughtfully tailored to the unique stone at the heart of your piece. This timeline reflects the intention and craftsmanship behind every detail.

Please be aware that shipment fulfillment occurs Monday through Thursday via UPS Overnight Air to ensure packages reach customers during the workweek, minimizing storage time in courier facilities on weekends.

To read more about our shipping policies, please see our policy and FAQ page here.

We suggest confirming your ring size first to avoid the need for additional resizes, as each adjustment can affect the integrity of your piece. Visiting a local jeweler is the most economical way to ensure your ring size, or you can order one of our ring sizers here.