Two necklaces and a bracelet with medallions from the Metropolitan Museum thought to be from Fayum, Egypt, described by Barbara Pfeiler-Lippitz in the article Späthellenistische Goldschmiedearbeiten in Antike Kunst 15. Jahrg., H. 2. (1972), pp. 107-119 https://www.jstor.org/stable/41318439
According to Jack Ogden this jewelry it is the 20th century work (pic. 3).
Among the jewelry shown in Ogden’s dissertation as 20th century work is the wonderful belt from the Cairo Museum that was considered the Roman period production, and including the gold coin depicting of Ptolemy III. The belt is still exhibited as an ancient jewel.
https://www.cairo24.com/1145129 
Photo by Cairo Museum 
A golden antique item is displayed at the exhibition ‘Coins through the Ages’ at the Egyptian Museum in Cairo, on August 10, 2010. AFP PHOTO/KHALED DESOUKI (Photo credit should read KHALED DESOUKI/AFP via Getty Images)
In my opinion this belt was most likely inspired by design of a pair of 14th century BCE bracelet from the Tutankhamen’s tomb made of gold, with lapis lazuli set into the frames with granulated ornament.
Photo (C) CULTNAT, Dist. RMN-Grand Palais / Ayman Khoury 
Photo (C) CULTNAT, Dist. RMN-Grand Palais / Ayman Khoury 