Learn how the Krüss Ruby Filter works, how to use it step by step, and why it is a useful screening tool in a home gemmology laboratory. Fun, clear, and beginner-friendly.

What is a Trapiche Emerald? A Trapiche emerald is a rare variety of Emerald that shows a distinct six-rayed star pattern inside the stone. According to research and documentation from the Gemological Institute of America, this pattern forms during crystal growth, not after. The name “Trapiche” comes from a Spanish sugar mill wheel, which the pattern closely resembles — a central core with spokes radiating outward. How Does That Star Actually Form? This is where it gets interesting. As the...

Natural diamonds take millions to billions of years to form, while laboratory-grown diamonds take just weeks. It’s a statement repeated so often that it sounds like a simple fact. But scientifically, the story is actually more complex. According to research from the Gemological Institute of America (GIA), scientists don’t actually know the exact speed at which a natural diamond crystal grows. That might sound surprising — but the reason is simple. Understanding Diamond Dating When researchers...