Necklace, 5-row flat curb chain with 2 diamonds,

Nacklace, 5-row flat curb links chain with 2 brilliant-cut diamonds, totalling ca. 0,16 ct, ca. STW (I-J)/P, 1 round faceted sapphire D: ca. 3 mm, 1 round faceted ruby ​​D: ca. 2,9 mm and 1 round faceted emerald D: ca. 2,1 mm, yellow gold 14K, 18,3 g, L: ca. 41 - 45.5 cm, W: ca. 1.5 mm, 21st century, minimal signs of wear, with hallmark.