18ct white gold, tanzanite and diamond pendant necklace; centring a claw-set oval-cut tanzanite weighing approximately 14.86 carats, within a surround of brilliant-cut diamonds and a further undulating surround of tapered baguette-cut diamonds, to a riviere style necklace comprising of collet-set brilliant-cut diamonds spaced at intervals with pear shaped settings set with pairs of further brilliant-cut diamonds, the diamonds together weighing approximately 9.49 carats, completed by a tongue and groove clasp, length approximately 440 mm.