Features: Adjustable Chain Diamond Clarity: I2 Jewelry Closure: Spring Ring Clasp Link Construction: Solid Setting: Prong Shape: Oval Stone Cut: Oval Stone Millimeter Measurement: 7 Mm Length, 5 Mm Width Diamond Color: I Metal Color: Yellow Chain Length: 18 Inch Extender Length: 2 Inch Pendant Length: 11.4mm Pendant Width: 8.7mm Rounded Carat Weight: Less Than 1/10 Ct.t.w Chain Construction: Box Care: Wipe Clean Stone Type: 1 Lab Created Opal, 23 Lab Grown Diamond Authenticity: Lab Created Stone Birthstone: October Birthstone Metal: 10k Gold Necklace Type: Halo Necklaces, Pendant Necklaces Pendant & Charms Type: Pendants Country of Origin: Imported Gemstones may be treated and may require special care. Some diamonds may consist of fewer than 17 facets. Photos are enlarged to show detail.