A breathtaking large blue teardrop tanzanite stone at the heart of a dazzling diamond setting in 18ct white gold creates this superb new necklace from Hatton Garden.

The teardrop cut is most unusual, and perfectly suits the tanzanite, which is a gorgeous blue AAA quality stone of 2.8 carats. The 3 carats of diamonds are very white (F/G in colour) and flawless to the eye (VS in clarity). The diamond-set chain is 18ct white gold. There is one only. RRP £38,000. CCUK £17,850.