Blue Topaz Necklace White Gold 18K

Necklace 18 kt WG, with loop at 40 cm + 43 cm, 20 diamonds 0,08 ct, G-si, 1 topaz 1,22 ct Lond. blue, h:8,9 mm, w:7,0 mm, l:45,7 cm, th:5,1 mm