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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

Cartier pavé round and channel set diamond earrings set in platinum. (c) GIA & Tino Hammid

Platinum is a metal favored by jewelers for its durability, malleability and significant weight. It doesn’t tarnish and maintains its natural white color, making it an excellent option for heirloom jewelry. And because it’s long lasting, platinum creates a secure setting for diamonds and gemstones, making it a top choice for engagement and wedding rings to last a lifetime. (more…)

The world eagerly awaits news of the arrival of the newest British Royal, due to be born any day. The royal couple’s child will officially be known as His or Her Royal Highness Prince or Princess of Cambridge, a title fitting for a child that will likely inherit the throne, and along with it, the right to wear the British Crown Jewels. GIA has highlighted a few of the spectacular jewels, which are mostly kept secured at the Tower of London.  (more…)

With the current popularity of period pieces—fueled in part by films and shows like The Great Gatsby and Downton Abbey–there is a rising interest in vintage fashion and jewelry. The Edwardian period lasted from 1900 to 1915, when England was flush with power and wealth. For the landed gentry (land owners who could live entirely off of rental income), the Edwardian Era was a period of prosperity and privilege; however, class divisions were equally stark. (more…)

ruby necklace, earrings, and ring

July’s mesmerizing birthstone was called “the king of precious stones” in ancient India. It remains a fitting title today. (more…)

jennifer aniston

As seen during the 2013 Oscars, vintage jewelry and diamonds continue to live in the spotlight, as evidenced by this 19th century oval and cushion cut diamond bracelet worn by Jennifer Aniston. But do you know the storied history behind your favorite vintage diamond cuts? (more…)

watch-wheel

Sports cars and jewelry may not seem to have much in common, but take a closer look and you’ll see that they frequently share common design elements: sleek lines, polished metal, bold color palettes and more. These design choices project status, power, and affluence; qualities likely to appeal to men. (more…)

Art Deco platinum, sapphire and diamond pendant/brooch.

With the return of The Great Gatsby, which is in theatres now, we’re reminded of the Roaring Twenties, a time of prosperity in the United States. Skyscrapers sprung up in major cities, jazz rang out from speakeasies and Charles Lindbergh made the first non-stop transatlantic flight. It was a decade known for automobiles, radios, telephones, skyscrapers, and flappers. (more…)

acorn necklace

After years of being overshadowed by white gold, yellow gold is making a comeback! The demand for colored gold is usually dictated by fashion trends. Whenever shades of blue and silver are fashionable, the demand for white gold tends to increase. With Earth tones currently at the forefront, there’s a growing desire for yellow gold. (more…)

637 carat diamond necklace

GIA recently made headlines for grading the statement gem in what has been dubbed the world’s most expensive necklace by the Guinness Book of World Records. (more…)

"Maze" leaf earrings, set in sterling silver and Mother of Pearl.

An exciting new exhibit series is making its way through GIA Headquarters in Carlsbad, California. “Aluminati: Students to Stars” highlights the talents of GIA alumni who have made waves in the gem and jewelry industry. The first exhibit in the series, featuring designer Kara Ross, debuted earlier this month and will run through November. (more…)

irish clauddagh ring

From ancient times to today, cultures around the world have celebrated wedding unions with wedding jewelry traditions. These customs offer a unique option for couples looking to infuse their wedding with beauty and personal meaning. (more…)

Aquamarines from Afghanistan

As its namesake suggests, the cool blue hues of March’s captivating gemstone are reminiscent of a tranquil sea. Aquamarine crystals can grow in large sizes with excellent clarity. (more…)