The Luma Signet Ring sets a small green agate into the corner of a square sterling silver face, with fine engraved rays fanning out across it. The sunburst lines draw the eye toward the stone, a natural agate whose green tone varies slightly from piece to piece. Long tied to grounding and balance, the stone adds a quiet point of color against the bright silver. Tapered shoulders flow into the squared face for a clean signet shape. Solid sterling silver gives it weight and an even shine. A silver agate signet that wears alone or layers with plainer bands.