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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

Mouawad Dynasty Diamond
Understanding the 4Cs of Diamond Quality

GIA created the 4Cs (Color, Clarity, Cut and Carat Weight) as a universal method for establishing how to check diamond quality anywhere in the world. The 4Cs means two very important things: diamond quality can be communicated in a universal language, and diamond-buying consumers can know exactly what they are about to purchase.

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amethyst stone
Amethyst Buying Guide

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

diamond horse shape
Year of the Horse

The horse is a pervasive motif in the design world, and this year it will bolt out of the gate with more fanfare than ever. According to  the Chinese Zodiac calender 2014 is the “Year of the Horse.” (more…)

Elizabeth Taylor diamond
Famous Diamonds: The Elizabeth Taylor Diamond

What makes a diamond famous? It might be the diamond itself, the story behind it or the people who’ve owned it. Today we kick off part one of our Famous Diamonds series, which will reveal the stories and secrets behind some of the world’s most extraordinary diamonds. First in the series is the 33.19 carat Elizabeth Taylor Diamond. (more…)

super bowl rings
Super Bowl Bling Rings

The Super Bowl is the most popular sporting event in the United States – almost 110 million Americans watched it in February 2013. So it’s not surprising that the Super Bowl ring is a matter of serious interest. (more…)

garland bow
Reinventing Lace

Lace is in. Big fashion houses are filling the pages of women’s magazines with haute couture lace clothing – dresses…shirts…scarves, and jewelry designers are no exception.

The handcrafted look is also popular, and it’s stoking demand for products with an antique appearance. These trends have trickled down to jewelry, and you’ll find beautiful pieces with lace-like qualities.   (more…)

Paula Crevoshay’s "Conchita" butterfly brooch
Transformation: Butterfly Jewelry

A timeless favorite, butterfly jewelry is often breathtakingly beautiful – and highly symbolic.

Consider how the humble caterpillar wraps itself in a cocoon. After about ten days it emerges as a butterfly, the once-earthbound dweller now free to flit from leaf to leaf. This spectacular metamorphosis speaks to our own potential for growth and transformation. (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…)

rose gold butterfly
Rose Gold Revival

The ever-changing nature of jewelry trends is driven by a number of factors. Right now, rose gold is having its moment in the sun after precious white metals were the color of choice for the past few years. Let’s take a look at why that might be.

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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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high quality diamond
Holiday Buying Guide Part 5: Tips for Purchasing Fancy Cut Diamonds

The unique beauty and appeal of fancy cut diamonds make them the perfect choice for gifts of the season. Shoppers now have a wide array of choices, so there is something for every taste. In this installment of our 2013 Holiday Buying Guide series, you will learn about some of the special characteristics of fancy cut diamonds before you ever step into a jewelry store. (more…)