Spinel

An assembled gemstone is constructed from two or more combined materials. Gemstone doublets and triplets, intarsias, and rhinestones are all…

The simple 10X loupe fits in your pocket and costs less than any other piece of gemological equipment. You’ll learn more with it than any other…

What’s tanzanite mining like? Follow Jeff Moriarty of Moriarty’s Gem Art as he descends into a Tanzanian mine in search of these gemstones.

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…

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…