Sapphire

Is all turquoise turquoise color? Learn about this gem’s most popular natural colors and how people have prized them for millennia.

Beautiful turquoises tend to show wear over time. Our turquoise care guide will show you the best ways to clean and maintain your jewelry.

Discover 24 stunning gray gemstones that embody quiet luxury and sophistication. From diamonds to serpentine, explore these versatile gems…

Discover 16 stunning black gemstones from black diamonds to obsidian. Learn about their properties, rarity, and value in this comprehensive…

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…