Cremation beads are beads crafted from a deceased person's ashes to resemble gemstones. These beads typically appear blue-green in color, though they may also take on shades of pink, purple, or black. The manufacturing technique involves subjecting the ashes to ultra-high temperatures to melt and crystallize them; the entire process takes approximately 90 minutes. Typically, the ashes of a single individual yield about four to five small vials of beads; however, in the case of younger individuals-due to their higher bone density-this yield can reach up to eight vials.
Cremation diamonds refer to diamonds created by transforming the ashes of a cremated individual into "sparkling gems." The core of this manufacturing process lies in extracting carbon elements from the ashes, which typically contain a carbon content of about 1% to 4%. The primary method employed is High-Pressure, High-Temperature (HPHT) synthesis: the extracted carbon is converted into graphite and placed within specialized high-pressure, high-temperature equipment. Using a natural diamond as a "seed" crystal, the process simulates the subterranean geological environment to grow a diamond crystal; the entire procedure requires six to eight months to complete. Chemical Vapor Deposition (CVD) may also be utilized as an alternative method.
Due to the limited carbon content found in human ashes, the creation of larger diamonds often necessitates the addition of laboratory-grade pure carbon; consequently, the proportion of carbon derived specifically from the ashes in the final product may be relatively low-with some data suggesting it accounts for approximately 10%. The resulting rough diamonds must then undergo cutting, shaping, and polishing to meet jewelry-grade standards, and can be further customized through processes such as laser inscription.