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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

Ruby Buying Guide

The color of love, anger, passion, fury, vibrant red ruby is July’s birthstone. It makes an ideal romantic gift, not only for those who celebrate July birthdays, but for all women. However, ruby can command the highest per-carat price of any colored gemstone. These stunning red gems are consistently breaking auction records, as demand for ruby continues to rise. (more…)

Diamond Buying Guide

Composed of a single element—carbon –and formed under extreme temperature and pressure, diamond’ remains one of the world’s most coveted gems – and the birthstone for those lucky enough to be born in April. (more…)

Jade Buying Guide

A gemstone that conjures up images of heaven and earth, life and death, yin and yang, jade remains hugely popular in China, and all across the world. But did you know that jadeite is available in lavender (but not in pink?) (more…)

17.96 ct, aquamarine
Aquamarine Buying Guide

March’s aptly titled birthstone, aquamarine, grows in gorgeous crystals and sparkles like the ocean on a sun-kissed day. But do you know what to look for when shopping for aquamarine? (more…)

vibrant red rubies
Choosing a Valentine’s Day Ring that Lasts

Judging by what celebrities wear on the red carpet, luxury cocktail rings continue to reign supreme. If you’re looking to bring some sparkle to your favorite Valentine, consider giving her (or him?) a ring with gems of grand proportions, one that’s a fashion statement and a work of art. But be warned: while these jumbo rings dazzle on the red carpet, only some may be suitable for everyday wear. (more…)

amethyst stone
Amethyst Buying Guide

Known for its majestic purple color, amethyst is the gemstone of choice for those born in February. (more…)

garnet birthstone
Garnet Buying Guide

January’s birthstone, garnet, is known for its impressive variety of eye-catching colors, which can be almost any color of the rainbow. Garnets occur in green (demantoid and tsavorite), orange (spessartine), red (almandine and pyrope), and purplish red (rhodolite), plus a few rare garnets even change color under different types of light. But color is far from a garnet’s only attractive feature. (more…)

diamond
Holiday Guide, Part 6: Tips for Buying Surprise Jewelry Gifts

In the 2013 GIA Holiday Buying Guide, we’ve talked about diamond jewelry styles and trends, and how to buy diamond jewelry, but as we near the end of the holiday, there is still one significant topic to address: how to buy her something she’ll love.

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Gold signet ring
Holiday Guide, Part 6: Fine Jewelry for Men

While holiday jewelry purchases are predominantly for women, many men would love to be on the receiving end of the jewelry-giving. Today, GIA’s Holiday Buying Guide series continues with tips for buying jewelry for men.

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platinum tri set
4Cs Tips for Holiday Shopping: 2013 Guide, Part 2

Diamond jewelry is often at the top of a woman’s holiday wish list but getting her a gift that she’ll love doesn’t have to be complicated. In the second installment of our 2013 Holiday Buying Guide series, you will learn the basics of what to look for when shopping for diamond jewelry.

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This platinum and yellow gold owl brooch has a pavé diamond head and body with large pearl accents for its chest and perch. Note the intricate pavé work and the attention to detail.
Giving a Hoot for Owls

Owls seem to be everywhere…and not just in trees. They’re landing on pins. Nesting on rings. And perching on bracelets. Yes, the owl is a beautiful bird. But the symbolism associated with these lovely creatures is likely one reason jewelry connoisseurs are adding owls to their collections. (more…)

Black Is the New Black

Black never goes out of fashion, and this season it’s taking a prominent place in fashion trends, especially in jewelry.

Black diamonds. Black pearls. Black spinel. The love of black-color gems and jewelry ranges from the most affordable to the most luxurious, and for good reason. It’s incredibly versatile. It’s the color of sophistication and elegance. It’s both edgy and timeless. (more…)