This stunning ring features a completely natural, black jade mined in California. This stone measures 12x10mm and has not been treated in any way. The ring additionally has two earth mined (heated) blue Apatite stones. The ring is set in solid .925 sterling silver with a rhodium plate to prevent tarnishing. The ring also has 18k yellow gold vermeil accents on the face for added beauty. The ring in the photos is the one you will receive, so please see photos for gemstone quality and measurements. Size 9. J2