UNIQUE pendant with tourmaline and brilliant-cut diamonds totaling approx. 3.38 ct (hallmarked),

Unique pendant with round faceted green tourmaline ca. 4 ct, and 13 brilliant-cut diamonds, 0.26 ct each, totalling ca. 3.38 ct (marked), ca. WHITE (H)/VS-SI, 18K yellow and white gold, 4x2.3x0.7 cm, with necklace of 18K yellow gold, L: 60 cm, 32.2 g, 20th/21st century, good condition, high quality craftsmanship, marked Unikat.