From the Gen K collection. Crafted of engraved sterling silver accented with 18K yellow gold details, this striking ring shimmers with a green aventurine doublet. Green aventurine doublet Sterling silver 18K yellow gold Imported SIZE Face width, about 0.50''. Lsd Jewelry - Jewelry Lsd Mp > Konstantino > Saks Fifth Avenue > Barneys. Konstantino. Size: 7.