amethyst

Measuring specific gravity helps gemologists identify gemstones. The following table lists the specific gravity values for a variety of gem…

Difficult to facet and typically colorless, beryllonite is a rare collector’s gem. Some specimens can show a striking cat’s eye.

Magnificat Rosaries offers handcrafted heirloom quality Catholic Rosaries made with sterling silver wire wrapped construction, all sterling…

Vintage engagement rings come in many different styles, but designs from four eras are very popular today. Learn more and find that perfect vintage…

How do you make money investing in gems? What should you buy, for how much, and how can you add value to your investments? Learn these top 5 rules.

Gem cutter Daniel Starr gave his “Hammers” gem design to the faceting community. Here, he describes his design and gives advice for cutting…

Choosing a setting is the most important decision when shopping for a ring. Read about your options in this comprehensive guide to engagement ring…

Not happy with your birthstone? Explore these alternative birthstones associated with astrological signs, angels, the hour or day of your birth,…

Refractive indices and double refraction (birefringence) help gemologists identify gems. The following table lists these values for selected…