Original sentence: Memorial diamonds are artificial diamonds that are promoted as including a certain amount of carbon from human hair or cremated remains.Memorial diamonds are supposedly produced using hair or ashes, with other carbon ("lab carbon") added.More than one company has claimed to be the first to provide memorial diamonds, and both Heart In Diamond and LifeGem have claimed to have a patent covering the growing of a "personalized gem diamond".Some "memorial diamonds" are graded by gemological laboratories, such as Gemological Institute of America (US) or Birmingham Assay Office (United Kingdom).The diamonds are then produced using the carbon extracted using conventional diamond synthesis techniques.The first lab-made diamonds can be dated back to the 1950s, while memorial diamonds started to appear in the market in the early 2000s.Typically, these are diamonds created in a laboratory, often referred to as "synthetic diamonds", "cultured diamonds", or "laboratory-grown diamonds"
Edited sentence: Distributors of "memorial diamonds" are dishonest with customers.Memorial diamonds are produced from hair or ashes, with other carbon ("lab carbon") added as necessary.More than one company has claimed to be the "first" to provide memorial diamonds, and both Heart In Diamond and LifeGem have claimed to have a patent covering the growing of a personalized gem diamond.The diamonds are then produced from the carbon extracted using conventional diamond synthesis techniques.The first lab-made diamonds can be dated back to 1950s, while memorial diamond started to appear in the market since 2000s.The patent for the process contains the admission they use carbon *not* from your loved one.There isn't enough carbon left after the cremation process.{{Diamonds cannot be made from human remains