Necklace with 2 mint green tourmalines and diamonds in total approx. 4 ct,

Necklace with 2 round faceted mint-green tourmalines 7.5 and 6.5 mm, beautiful quality, brilliant-cut diamonds totalling ca. 3.6 ct, ca. RW-WHITE (G-H)/VVS and 7 baguette.cut diamonds totalling ca. 0.4 ct, 18K white gold, 27.5 g, L: 40 cm, around ca. 1970, good condition, elaborately handcrafted.