Blue Nuance in Lab Diamonds
Blue nuance is a tinge of blue color present in HPHT diamonds resulting from excess boron in the diamond after the growth process. Lab diamonds with a measurable amount of boron are considered Type IIb, not Type IIa.
- How does blue nuance occur?
- Do all HPHT diamonds have blue nuance?
- How does it present to the naked eye?
- How does this affect grading?
- What are alternatives to blue nuance?
- How does this affect the diamond other than color?
- What is phosphorescence?
The Bottom Line:
Not all lab diamonds are created equal, even within the same 4Cs. This is why it is imperative that a lab diamond expert inspect your lab diamond before purchase. It is also why you should work with a retailer who will take back your lab diamond via a trade-in or resale program to ensure you are buying a quality stone.