CreatedDiamondsNet
CreatedDiamondsNet

CreatedDiamondsNet

  • CDC announces the world’s largest untreated High-quality Created Diamond

    Recently, Created Diamonds Company(CDC) announced up-to-date the world’s largest high-quality created diamonds, which is supreme in both colour and clarity while without any post-growth treatments or enhancements. Shortly the stone caused much of a stir in the LGD industry. The diamond has been identified by the IGI (International Gemmological Institute) with relevant specifications showing below: Weight: 7.06 carats, Color: F, Clarity: VVS2, Cut: 3EX, Fluorescence: None Provided by Hangzhou ChaoRan Diamond Co., Ltd.(ChaoRan), this super diamond was created through CVD ( Chemical Vapor Deposition) method. According to ChaoRan staff, before being designed, cut and polished ,the rough stone weighed 28 carats. And the final come-out of the polished stone reached 7.06 carat. Which made it currently the world’s largest unheated high quality CVD round diamond. CVD (Chemical Vapor Deposition) is one of the 2 methods to create diamonds. HPHT (High Pressure High Temperature) represents the other. Speakingof the 2 technologies, HPHT was applied years earlier than its counterpart CVD tocreating gem-quality diamonds. HPHT diamonds has already emerged in the jewellerymarkets in 2010; while CVD diamonds started to show up from 2013 . In terms of grades, the colour of HPHT diamond usually can reachto D-F, but most of thestones’ clarity ranges around SI.While according to the industry, the CVD technology seems alwayslack of control in colour stability. A large proportion of CVD products need post-growth treatments or enhancements in orderto get better grading . Statistic shows that, a USA based…

    March 21, 2020
  • Is There a Resale Market for Lab-Grown Diamonds?

    Last week, at the urging of a commenter, Ilooked into Kay’s and Jared’s policy for lab-grown diamond upgrades andtrade-ins, now that both of those chains are selling them. Suffice it tosay, it’s not the same as for naturals. Here’s Jared’s: Our diamond trade-in and upgrade services allowyou to take any diamond jewelry (excluding lab-created diamonds) you no longerwear and trade it in for a brand new one. Kay’s site has similar language. And so doesone of the biggest lab-grown diamond sellers online, Brilliant Earth. Lab-grown manufacturer Diamond Foundry hastraditionally touted its “forever 100% value guarantee”, which“guarantee[s] the value of your diamond forever” with a “free lifetimeupgrade.” At press time, JCK could not find the guarantee stilllisted on its site. The company did not respond to requests for commentabout the guarantee’s current status. (UPDATE: After this piece wasposted, Diamond Foundry emailed it’s “still offering” the guarantee butthe site “is focusing more on B2B sales right now so it is not currentlylisted.”) This is a thorny issue for the lab-grown diamond world. Given that technology cheapens over time, and created-diamond production isn’t limited by nature, most believe that synthetic prices will drop. In fact, that…

    October 25, 2019