C1840-1860 Multi-Gem Harlequin natural gemstone bracelet set with gold collets

C1840-1860 Harlequin Bracelet 
Open backed gemstone bracelet 
Set with 19 graduated gemstones including Peridots, Garnets, Citrines, Zircons, Amethyst & Sapphire 
Covered clasp 
Set in 13-15k Gold XRF tested (some parts tested as 13k and others higher) 
17cm:6 7/8 long approx
12.1g weight
Later added metal safety chain
Absolutely stunning example of a rare period piece