ONE OF OUR OWN CREATIONS - MOUNTING ONLY. Using molds taken from original 1920's Art Deco pieces, we have created these lovely mountings. A beautiful tiered engraving down each side of the shank coupled with a delicately filigreed undercarriage adds a simple (and classic) adornment to a lovely little ring. These rings can be made in any metal, however, we have them stocked in white gold and yellow gold. MADE FOR A 4.0 to 4.5MM STONE, which we can find for you or you can provide. NB: A diamond that size would weigh approximately 0.25 - 0.30ct. SIZE 5.5 (can be sized) SKU: BG#21 LAB GROWN DIAMONDS: We can source natural and lab grown (synthetic) stones of any variety, including lab grown diamonds. For instance, a half carat lab grown diamond (G color, SI1 clarity) would cost between $1100-1300 as of August 2018. By comparison, a natural stone of the same qualities would cost between $1500-1800. We can source stones of different clarities and colors, but G-SI is a good balance between color, clarity, and cost. All lab grown diamonds that we sell are certified and laser inscribed, indicating that they are not natural. Lab grown diamonds are chemically, visually, and microscopically identical to natural diamonds, the exception being that they are made above the ground rather than below it.