Dilemma: I have a client who wants a Tanzanite on his future
wife's engagement ring. I know Tanzanite is 6.5 - 7.0 on Mohs
andthik that would make it inappropriate for daily wear and tear.
Am I right or am I being overcautious and should I let the man have
Well, to put plainly, it depends on the design, on the stone, on the
wearer, and on the goldsmith.
The issue is not in hardness, but stone fragility. Properly cut, in
protective setting, which was designed to absorb shocks; 18k yellow
is a must, or even 22k; given conscientious wearer, the ring can last
and last. But remove even a slightest bit from this equation, and you
have an irate client and a hapless goldsmith. Not a good situation.