Carolina Vivas-Serna

The emerald, the famous green beryl, is one of the most coveted precious stones in the world and is a true geological miracle. Therefore, in this specialized guide I am going to tell you everything you need to know about this gemstone: What is an emerald? Rock vs. Mineral Emerald properties: hardness on the Mohs scale and other characteristics Where is the emerald found and where does it come from? Why are Colombian emeralds different and more expensive? Why do some emeralds have pyrite? What...

In the world of corundums, there are sapphires that encapsulate two or more colors in a single gem . These are bicolor, parti, and multicolor sapphires: A wonder of nature that offers a unique chromatic spectacle, and turns each stone into a unique work of art . Want to learn more about these exceptional gems? So, keep reading this guide we've created for you, where you'll discover: What bicolor, parti, and multicolor sapphires are, and what their differences are What their properties are How...

Known for its intense red color, pyrope garnet has captivated humanity for centuries . It is a stone that combines timeless beauty with excellent durability and a fascinating history. That's why, at Oscar Bautista , we decided to create this complete guide so you can better understand and appreciate this gem. Here, you'll learn some details about its formation and the factors that determine its market value: What is pyrope garnet? What are its properties? How is it formed? Where is pyrope...