This 3.74-ct. princess-cut aquamarine’s prized medium-blue color is highlighted by the 22 diamonds that surround it. The ring is an original, copyrighted design by Zoltan David. - Robert Weldon, ...

Cultured pearls come in different sizes, shapes, and colors. Perhaps the best-loved gems of all time, pearls—both natural and modern cultured pearls—occur in a wide variety of colors. The most ...

Cost of attendance (COA) is total estimated expenses for a program including tuition, housing, books, supplies, transportation, loan fees, and miscellaneous expenses. The COA is used to determine each ...

Rainbow moonstone is transparent labradorite, a closely related feldspar mineral with sheen in a variety of iridescent colors. Although it’s technically not moonstone, it’s similar enough that the ...

However gem quality diamonds are fashioned from the original crystal shape they possess a combination of brightness, sparkle, fire, and sense of purity not matched by other gems. - Jeff Scovil, ...

This 10.12 ct Fancy Vivid yellow pear shape illustrates the effect a fancy shape can have on intensifying the color in a yellow diamond. - Courtesy the Scarselli Family Color In diamonds, rarity ...

Those born in January are lucky to have the beautiful and diverse garnet as their birthstone. Garnets are commonly red but also come in an extraordinary range of beautiful colors, including orange, ...

A hand-held flashlight reveals the green color of a rough emerald from the Coscuez Emerald mine in Colombia. Photo by Eric Welch/GIA. Emerald is the green to bluish green variety of beryl, a mineral ...

The soothing soft pink shades of rose quartz appeal to gem carvers and collectors. – Valerie Power, courtesy Arunashi People accept a certain amount of sand, dirt, and dust as ordinary ingredients in ...

Diamond is available in a range of sizes and qualities to fit every consumer's tastes. One of the first things most people learn about diamonds is that not all diamonds are created equal. In fact, ...

カットの品質は、ダイヤモンドのファイアー、きらめき、および輝きを増幅させる要因です。 際立つダイヤモンドの美しさや魅力は、何よりもカットの品質に左右されます。 DからZの色範囲で表される標準ラウンドブリリアントに関するGIAダイヤモンド ...

精优品质的堇青石颜色有时可与蓝宝石或丹泉石媲美。 – Robert Weldon（罗伯特·韦尔登） 首次发现丹泉石时，宝石学家最初怀疑它可能是堇青石 — 一种数千年来为人所知的晶莹剔透、具有多向色性、呈紫蓝色的宝石。 今天，堇青石（cordierite，以地质学家 Pierre ...