HPHT vs CVD, who can still choose? Cultured diamonds are actually treasures grown in the laboratory using seed roughs to simulate the growth environment of natural diamonds! Their composition, crystal structure, chemical properties, physical properties, and optical properties are exactly the same as natural diamonds!
đ So, there are two main ways to grow cultured diamonds: CVD and HPHT. Do you know the difference between them?
đ CVD chemical vapor deposition method is like building a high-rise building for diamond seeds! A thin diamond wafer is needed as a seed, and then it is placed in the cultivation chamber, and given certain conditions, the diamond wafers are stacked layer by layer, and finally become a cultured diamond rough!
đĽ The HPHT high temperature and high pressure method directly simulates the formation conditions of natural diamonds in the mantle! Put carbon atoms into the growth chamber, give them high temperature and high pressure, and let them slowly grow into diamond crystals! It is simply the miracle of nature again!
đ So, what are the differences between diamonds grown by these two methods? đ Diamonds grown by HPHT have a higher color grade, usually top-grade DE color! However, large carats are rare!
đ Diamonds grown by CVD are larger, and the color grade may be slightly lower, so there will be some CVD color-changing diamonds, of course, you have to choose the ones without color change.
đď¸ So, when choosing cultured diamonds, just choose according to your budget and needs!
There is no difference between CVD and HPHT, it depends on the quality of a particular diamond. No color change, fluorescence, etc. will be clearly written on the certificate, don’t worry about being cheated! Today’s cultured diamond selection method is shared here! I hope you can all pick the cultured diamond you like! â¨
