Cosma Collection

The Emerald E/W Diamond Cosma Ring reimagines the relationship between stone and setting. Each ring is designed to echo the diamond’s own silhouette, preserving its natural geometry beyond the crown. Where traditional settings conceal the body of the stone, Cosma brings it forward, integrating its full form into the architecture of the ring. The result is a seamless dialogue between diamond and gold, where the setting does not hold the stone, but becomes an extension of it.

- The image shown features a 3ct G VS1 GIA certified ethically mined emerald cut diamond set in 18K gold. 

Each piece is made to order and offered in a range of diamond sizes to achieve your desired scale and balance.

The listed price reflects the setting only and does not include the center diamond. The center diamond is selected separately, allowing you to personalize the piece to your preferred specifications.

For further details on our bespoke design and production process, please inquire below.

— Handcrafted in Los Angeles, California.