Features: Nickel Free, Quick Ship Diamond Clarity: I2-I3 Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Infinity Stone Cut: Heart Stone Millimeter Measurement: 6 Mm Width, 6 Mm Length Diamond Color: H-I Metal Color: White Chain Length: 18 Inch Chain Width: 1 Millimeters Pendant Length: 18mm Pendant Width: 8mm Rounded Carat Weight: Less Than 1/10 Ct.t.w Stone Treatment: Dyed Chain Construction: Box Care: Wipe Clean Stone Type: 1 Genuine Onyx, 1 Natural Diamond Authenticity: Genuine Stone Metal: Sterling Silver Necklace Type: Pendant Necklaces Country of Origin: Imported Gemstones may be treated and may require special care. Diamond total weights may vary between .01 and .08 carat. Metal may be rhodium plated to enhance appearance and reduce tarnishing. Some diamonds may consist of fewer than 17 facets. Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.