Rose is a GIA-certified designer who spent years studying and producing professional one of one pieces while shadowing major jewelers, before creating Costolo Studio. Processing, repurposing finite materials, and the elements they are humbled to create with inspire them. Never plated, outsourced, tarnished, or discarded.

Sculptural and quietly striking, the Costolo Studio 5N Ring embodies the brand’s signature balance of organic form and refined restraint. Crafted with a softly contoured band and finished with subtle diamond detailing, this piece feels both architectural and intimate. Designed to be worn daily yet distinctive enough to stand alone.

• Made in the USA
• Platinum
• Diamonds: 1.5ct