Artisan made by Boston based jeweler Donald MacLachlan.
Sterling silver with 14 kt, 18 kt, and 22 kt gold details.
1 emerald, 1 star sapphire, 2 pink sapphires, 2 yellow diamonds, 1 blue sapphire, 1 tsavorite garnet.
Marked on the back 'Sterling 14K 18K 22K M'
Comes with a gold safety chain that also serves as an extension.
Total weight 22.5 g (14.5 dwt), length 16 inches (18 inches with extension), hanging part 3 inches.