Charming Georgian two row half hoop ring set with 8 high top old cut diamonds, and 8 turquoise. The stones set in silver collet settings with a closed gold back.
This is a really lovely ring but one of the diamonds at the end has a small chip. 
Personally it doesn’t bother me as it is a clean slice so not too obvious. 
Looks great with my other two row Georgian diamond ring (also available) 
Haven’t tested the gold but guessing it’s 15 carat
Size 8