14K White Gold Emerald Cut Blue Topaz Necklace with Diamond

14K yellow gold 16-18inch necklace. 13.5mm(length) x 8.3mm(width) blue topaz and diamond drop pendant w bail; 19mm(total length) on 0.9mm adj cable chain w lob clasp. 1 emerald-cut 9mm(L) x 7mm(W) swiss blue topaz=2.57ct.; 1 round full-cut diamond=0.03ct. Bezel-set.