18.75ct Tanzanite/2.63ct White Sapphire & Diamond Alternating Gemstone 14/18K WG Oval/Cushion Cut Necklace

18.75ct of total tanzanite between the center stone and accent stones.
Set in 14K and 18K white gold.
Surrounded by a cluster of 29 diamonds totaling 1.05ct.
Interlaced with 14 stones of white sapphire totaling 2.63ct.
Sourced in Tanzania and Sri Lanka.