This 7.19-carat alexandrite was cut to feature its beautiful color change. When the light source changes from daylight to incandescent light, the gem’s color changes from bluish green to reddish ...

Determine if you'd like your smart scale to connect to Wi-Fi, Bluetooth or both. User-friendly interface You want a smart scale that has an interface that's easy to read and follow. Especially if ...

I attended an informative two-day workshop, Introduction to Jewelry Grading, at the International Gemological Institute (IGI) in New York City last month. IGI instructor, Mark Reyes, G.G ...

There are many different scales and some are linked to particular styles of music or geographical regions. Each scale can conjure up different feelings and moods. Here are some of the most well ...

Each material has properties that make them good for specific tasks, eg aluminium is lightweight and doesn’t rust, making it suitable for drinks cans. The properties of materials must be ...