Thank you for viewing. This is a design jewelry ring from Caline Paris. It's a hexagonal metal ring with a green emerald-like stone. Caline Paris is a jewelry brand created by a Japanese designer living in Paris, using vintage metal fittings and stones from Paris, all handmade. - Color: Green stone - Material: Metal - Shape: Hexagonal design - Stone Type: Emerald-like stone - Size: Japanese sizes 2-3 (approx. US sizes 1.75-3.25) I purchased this directly from the designer when I lived in Paris. It has a delicate design, but the vintage stone is very beautiful and has a strong presence. ◎ First come, first served. I will sell it to the person who makes an immediate purchase, even if there are ongoing price negotiations.