Why a Lab Diamond Will Never Fade, Get Cloudy, or Change Color
Will a lab diamond change color over time?
Our clients are occasionally told by other jewelers that a lab diamond may change in appearance over time. This is not true for lab grown diamonds. A lab diamond sold by Ada Diamonds will never get cloudy, fade in brilliance, or change color. In fact, we offer a lifetime warranty on our lab diamonds.
Our lab diamonds have the same physical properties of a mined diamond. It will not change appearance. It will look exactly the same in a billion years as it does the day you receive it from Ada Diamonds. In fact, if you placed your lab diamond in a vat of concentrated hydrochloric acid it would just get a good cleaning!
The only ways that a lab diamond could be damaged is the exact same way that a mined diamond could be damaged.
It is possible that the reason that jewelers promote this misinformation is that some cheaply produced cubic zirconias will oxidize and get cloudy over time. Cubic zirconia is not a diamond, and Ada Diamonds refuses to sell cubic zirconia or other inferior diamond simulants.
Are There Any Exceptions to This Rule?
We have read a report that a very small number of CVD grown lab diamonds of very low quality slightly changed color temporarily after exposure to UV light. These lab diamonds were I or worse color after HPHT treatment, meaning that they likely were grown as M or L color with significant voids in their crystal structure. Ada Diamonds categorically does not sell lab diamonds like this as they are very brown/yellow in person. Nor do we sell lab diamonds that have undergone heavy irradiation or treatment, which can damage a diamond’s crystal structure.
Rest assured that every lab diamond sold by Ada Diamonds has been carefully inspected and been subjected to long and short-wave UV light to test for florescence, phosphorescence, and stability.