inclusions

Explore 13 beautiful purple gemstones for every budget and style. Learn about amethyst, tanzanite, purple sapphire, and rare purple varieties…

Discover 21 stunning pink gemstones , including diamond, morganite, and tourmaline. Learn hardness, rarity, and pricing for each pink gemstone…

Expert lapidarist Jim Buday shares how he learned to cut gems and created his Reddit subgroup. Read about his new faceting videos on IGS.

Famously found as clean and beautifully shaped natural crystals, spinels seldom receive treatments. Nevertheless, you still might encounter…

Diamond simulants often appear in jewelry, as side stones and accents as well as centerpieces. Identifying these lookalike materials, whether…

Blue gemstones captivate us with their connection to sea and sky, representing one of nature’s rarest colors. Today’s gem market…

Are you fascinated by the allure of red gemstones but unsure which ones make the best choices for rings and other jewelry pieces? This comprehensive…

Chart showing a mix of modern and traditional birthstones by month. The Origin of Birthstones The idea of a birthstone, a gemstone that corresponds…

The polariscope is one of gemology’s simplest and most useful tools. With a little practice and our three-part polariscope guide, you’ll…