For your consideration, a Gorgeous Vintage Sterling Silver Carolyne Pollack Carlisle Multi Gemstone Large Cross Pendant Brooch (1583). 

Gemstones are Ametrine, Turquoise and Jasper. 
Stamped `CP 925`. Weighs 14.6 grams. 
Pin and Hook.

Measurements: 53mm width x 40.4mm long x 3.75mm deep

Condition: Excellent, almost never been worn and has lived most of its life inside a glass case. No repairs or missing stones.