Necklace of ancient sea pearls with susta in 18 kt white gold diamonds and sapphire

Thread of ancient pearls of salt water with susta handmade in 18 kt white gold.
The susta consists of a central sapphire and brilliant cut diamonds
Jewel in perfect condition
Pearl size: to scale from 5.15 to 8.70 mm approx.
Necklace size:about 46 cm
Size approx.:approx. 1.10 x 2.5 cm
Diamonds:0.48 ct
Diamond cut:brilliant