This ring looks like a diamond solitaire ring, but it isn’t. My best guess is that the stone is a white sapphire, because it reacts to a certain extent to the diamond tester, so it is a natural crystal, but I doubt if someone would set just an ordinary quartz in 9 carat gold. The brilliant-cut stone has a diameter of 4mm. It is set between stripy gold bands with four surrounding gaps, which appear black when worn to make the stone stand out even more clearly. The shank is hallmarked 375 for Birmingham 1981 with the maker’s mark of H.A.N. The ring is size Q and is in excellent condition.