Have you ever considered which shiny gemstone is the best for you? Well, you’re in the right place. We will find the differences between Onyx and Obsidian, those bright and mysterious stones. Think ...

Girard-Perregaux is winding down its astronomical Cosmos model with a final trio of unique pieces embellished with two-part dials made with aventurine, a combination of obsidian and onyx, and a ...