About the brand: Precious gemstones luxuriously crafted. IGI certified Platinum Lab-Grown Faceted Round-cut Prong -set Diamond = approximately 13.00 ct. tw.; color = DEF; clarity = VS The Diamond Guide(https://prf.hn/click/camref:1100lvWgf/creativeref:1100l102926/destination:https%3A%2F%2Fs3.amazonaws.com%2Fmore-info%2Fguides%2Fdiamond.png%29 The Diamond Shape Guide(https://prf.hn/click/camref:1100lvWgf/creativeref:1100l102926/destination:https%3A%2F%2Fs3.amazonaws.com%2Fmore-info%2Fguides%2Fdiamondshape.pdf%29 The Ring Size Guide(https://prf.hn/click/camref:1100lvWgf/creativeref:1100l102926/destination:https%3A%2F%2Fs3.amazonaws.com%2Fmore-info%2Fguides%2Fring-size%29 Ring cannot be re-sized It is customary to treat most gemstones to achieve enhanced color and durability. Some of these treatments may not be permanent, and may require special care. Comes in jewelry box