Natural and lab grown diamond bracelets thermal conductivity properties differentiate them from cubic zirconia with a handheld diamond tester. Some lab diamonds, along with some natural coloured diamonds, may be mistakenly identified as moissanites when using certain diamond testers due to the similarity in their electrical conductivity. However, gemologists can distinguish between Diamond and moissanite due to their differing refractive properties, with moissanites double refractive and diamonds single refractive. Learn more about moissanite vs Diamond.
Our lab-grown diamonds display the same physical, chemical, and optical characteristics as natural diamonds and exhibit the same fire, scintillation, and sparkle. Artificial diamonds are nearly impossible to differentiate from natural diamonds using a jewellery loupe. Lab-created diamonds may exhibit different trace elements than natural diamonds that do not affect the appearance of the Diamond. lab grown diamond necklaces can be distinguished from natural diamonds only with specialised equipment tests. Lab-created diamonds available for purchase should always come with a gem certification identifying them as the laboratory has grown.
lab grown diamond rings sometimes are also referred to as Cultured Diamonds or Lab-Created Diamonds. Regardless of the term used, you're likely getting a diamond that's been grown in a lab. Lab-Grown Diamonds are made by two different processes - High Pressure-High Temperature (HPHT) and Chemical Vapor Deposition (CVD). These processes create extremely high pressure and temperature environment conducive to diamond growth. Typically, Lab-Grown Diamonds start with a tiny seed of carbon. The seeds are placed in a chamber called a plasma reactor (in the case of CVD synthesis) or a large mechanical press (if manufactured by HPHT). Then, depending on the technology used, some combination of heat, pressure and gasses are used to make the crystals grow, layer by layer.
Because Lab-Grown Diamonds are virtually indistinguishable from Natural Diamonds, some buyers might be concerned that will be sold a lab grown diamond earrings labelled as a Natural Diamond, but this is rarely the case. Lab-Grown Diamonds are responsibly disclosed as such, and some even feature laser inscriptions on Diamond's girdle (the outermost edge of the Diamond) that label them as Lab-Grown. Most Diamonds from reputable jewellers are evaluated by the International Gemological Institute (IGI) or the Gemological Institute of America (GIA) and other independent gemological laboratories. They include a report to confirm whether they are Natural or Lab-Grown.