Black Crystal 925 Silver Hoop Earrings Beautiful pair of fine jewelry hoop earrings set with black shining rhinestones in 925 silver. These earrings are very professionally designed with black rhinestones securely set in heavy silver. The white of the silver creates the pop of color in the rhinestones. Marked with the maker's flower mark (unknown designer) 925 silver. The post fits into a push button opening. Measurements: 2" hoops.