14K. SOLID GOLD NECKLACE WITH NATURAL BLUE TOPAZ (Rose Gold)
We use copper, silver, palladium and zinc to make gold stronger. Gold’s weight is usually devised in "24ths". 1 Pear shape, 5X3 mm, Blue Topaz = 0.26 ct. 1 Pear shape, 6X4 mm, Blue Topaz = 0.60 ct. 1 Pear shape, 7X5 mm, Blue Topaz = 0.85 ct.