false diamond

false diamond

n
(Jewellery) any of a number of semiprecious stones that resemble diamond, such as zircon and white topaz
References in periodicals archive ?
More importantly, make sure your thong is peeping slyly over the top of your waistband with the false diamond nicely polished.
A friend said: "Victoria didn't want anyone to think something was wrong, so she put a false diamond in the ring and no-one noticed.