Diamond Clarity: I2-I3 Jewelry Closure: Spring Ring Clasp Setting: Prong Shape: Cushion Stone Cut: Cushion Diamond Color: G-I Metal Color: Rose Chain Length: 18 Inch Chain Gauge: 050 Pendant Length: 21mm Pendant Width: 14.2mm Rounded Carat Weight: Less Than 1/10 Ct.t.w Stone Treatment: Dyed Chain Construction: Rope Care: Wipe Clean Stone Type: 1 Genuine Onyx, 18 Natural Diamond Authenticity: Genuine Stone Metal: 10k Rose Gold Necklace Type: Pendant Necklaces Pendant & Charms Type: Pendants 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. Photos are enlarged to show detail.