Both yellow and white lab-grown diamonds shine from a stunning two-tone gold engagement ring; White lab-grown diamonds: 0.40 total carat weight; color/clarity: VVS-VS; Yellow lab-grown diamonds: 3.04 total carat weight; 18K white & yellow gold; Lab-grown diamonds are created using specialized equipment in a lab, and are optically, physically, and chemically the same as natural diamonds.; After being grown in the lab, they are cut and polished in a similar fashion and measured with the same 4 C's (cut, color, clarity, and carat weight) as natural diamonds.; Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care; Photo may have been enlarged and/or enhanced; All gemstone carat weights (tcw) are approximate; variance may be 0.05 carat.; White gold is surface-coated with rhodium to enhance metal color and shine; it may wear off over time requiring replating.; Imported