Necklace and pendant with brilliant-cut diamond

Choker and pendant with brilliant-cut diamond ca. 0.15 ct, ca. RW (F-G)/VVS, 18K yellow gold, 10.4 g, pendant: polished/satin finished, L: ca. 18.9 mm, W: ca. 12, 2 mm, choker: L: ca. 42 cm, W: ca. 1.1 mm, 21st century, minimal signs of wear.