Description Beautiful ladies 10 karat gold on sterling silver bypass ring with 8mm x 4mm lab-created* marquise opal and 12 karat Black Hills Gold leaves. *Sizes 6, 7, 8 and 9 will ship in 3-8 business days. Sizes 6.5, 7.5 8.5 and 9.5 will ship in 10-15 business days. All other sizes and half-sizes are a custom order and will ship in 4-5 weeks. *Lab-created gemstones have the same mineral composition as gemstones but are created in laboratories that stimulate the high pressures and heat that nature used to create the real gemstones beneath the Earth’s surface. A lab-created gemstones is identical to the natural gemstones it replicates in every way: color, hardness, composition, luster, looks, etc. The only difference between natural and lab-created is that lab-created were not mined from the Earth.