Antique Diamond Flower Brooch or Pendant of 10k Gold black flower After spotting this camera charm

After spotting this camera charm

and it is in great condition with a small bit of lead solder visible on the reverse of the turquoise under magnification

The pendant is marked for 14k gold and also bears the maker's mark for A

5 inches in circumference

The inside of the band bears the makers mark for Ostby & Barton Company

Antique Diamond Flower Brooch or Pendant of 10k Gold black flower After spotting this camera charmThis antique brooch (circa 1890 1910) features a flower of 10k gold adorned with tiny half pearls and a glittery 0. 37ct old mine cut diamond of H I color, SI clarity. The brooch has a collapsible bail so it can be worn either as a brooch or pendant. The piece measures 1. 4 inches from the top of the bail (when extended) to bottom by 1. 3 inches wide, and it weighs 7. 34 grams. It is in great condition. Note: The antique box in the photo is for