Pendant with brilliant-cut diamond 0.5 ct, HFW + (D)/IF

Pendant with brilliant-cut diamond 0,5 ct, EW + (D)/IF, surrounded by 12 brilliant-cut diamonds. 0.13 ct, RW (G)/SI, on fine anchor chain, WG 18K, 4.2 g, 21st century, mint condition. GIA certificate No. : 2366037468 from 09/2020 enclosed.