Birthstone Guide

Most people think garnet only comes in red, but it actually occurs in an incredible spectrum: orange, green, purple, and even rare color-changing vari...

Amethyst has enchanted humanity for millennia with its regal purple tones, ranging from delicate lavender to deep, saturated violet. The color comes f...

Aquamarine is one of the most beloved members of the beryl mineral family (which also includes emerald and morganite), and its breathtaking blue-to-bl...

Diamond is the hardest natural material on Earth. Period. Composed entirely of carbon atoms arranged in a diamond cubic crystal structure, it scores a...

Emerald has captivated humanity for over 4,000 years with its lush, vivid green, the kind of green that makes you think of spring renewal and raw vita...

Pearl is unique among all birthstones. It is the only gem produced by a living creature rather than formed underground. Created inside the soft tissue...

Ruby is called the "King of Precious Stones" for a reason. This magnificent red variety of corundum owes its color to chromium, which produces hues fr...

Peridot is the gem-quality variety of olivine, one of the most common minerals in the Earth's mantle. Here is what makes it special: unlike most gems ...

Sapphire is royalty in gem form. This precious variety of corundum displays spectacular blues ranging from velvety cornflower to deep, inky midnight. ...

Opal is one of the most visually extraordinary gemstones on Earth, and no two are alike. That mesmerizing play-of-color, where spectral hues dance and...

Topaz is a magnificent aluminum silicate gemstone most commonly associated with warm golden-yellow and orange hues, though it naturally comes in blue,...

Tanzanite exists in only one place on Earth: a small stretch of the Merelani Hills in the shadow of Mount Kilimanjaro in Tanzania. That alone makes it...