18kt White Gold Diamond and Sapphire Necklace

18kt white gold 4 prong set oval blue sapphire and micro prong set marquise, princess and round brilliant diamond long necklace.
16 princess cut diamonds = 0.40ctw
4 princess cut diamonds = 0.17ctw
198 round diamonds = 7.04ctw
28 marquise diamonds = 1.63ctw
16 marquise diamonds = 0.41ctw
356 round diamonds = 2.69ctw