CVD / HPHT - Lab Grown Diamonds
What Is A Lab-Grown Diamond?Lab-created diamonds are grown in highly-controlled laboratory conditions that reproduce the Earth’s natural growing environment of "high pressure and high temperature". These lab grown diamonds have essentially the same chemical composition, crystal structure, optical and physical properties of diamonds found in nature. They are not technically “synthetic diamonds” since their chemical composition is that of naturally occurring diamonds; and they usually exhibit the same fire, scintillation and sparkle and hardness as natural earth mined diamonds. Lab-grown diamonds are categorized as either high-pressure, high-temperature (HPHT) or chemical vapor deposition (CVD) diamonds, depending on the method of their production.
Lab-Grown Diamonds vs Natural Diamonds?
When considering the differences and similarities between lab-created diamonds and “nature grown diamonds,” you won’t find any that are visible to the naked eye, even if you are a gemologist. A part of what makes diamonds attractive to people is their history. Natural diamonds mined today were formed in nature between 2 billion to 3 billion years ago. This alone is one reason why they’re so valuable. Unlike natural diamonds, lab-grown diamonds take approximately 4 to 10 weeks to develop in a laboratory depending on their size.