A video blog explaining what the term "window" is when referring to a gemstone. In short, it means when you're able to see through a gemstone instead of seeing the brilliance of the stone itself. In this short video, I'll go in to additional depth, explain why this happens, and why it might be important when buying loose stones, or selecting a mounting for a gemstone.
This is a more scientific explanation of how gemstones and diamonds get their fire. It all breaks down to two terms which you may have heard tossed around before: Refractive Index and Dispersion. In this short video, I'll explain the difference and show why it can be a factor in a gemstones brilliance.
Think you know your gemstones? Try out or fun video quiz to see how you do. Very few will score a 10/10.