Caribbean Blue Dichroic Glass Studs 9mm. Your eye-catching earrings will come on a personally designed wooden card. When you're not wearing them, this is the perfect place to store, so that you don't have one go missing! These unique Caribbean Blue Dichroic Glass Studs have been carefully handcrafted by the skillful artists Carolyn & Anthony Green, who live in Victoria, BC. Canada. Each piece of artwork is designed and fashioned from start to finish using only the finest skills in glass craftsmanship. Fused glass is a process of melting layers of glass together in a kiln at temperatures between 1350-1450 degrees Fahrenheit.