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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: A Metal Fit for Kings

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…)

4Cs Q&A with GIA: Diamond Color Grading

Do you know how diamond color is evaluated? GIA kicks off its 4Cs Q&A series with color grading. (more…)

Jewels Fit for a King (or Queen)

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…)

Edwardian Era Jewelry

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…)

Jeff Mason
A (Pawn) Star in the Making: Gemologist Jeff Mason

GIA graduate and Las Vegas Chapter GIA Alumni Association President Jeff Mason is the in-house gemologist at the World Famous Gold & Silver Pawnshop, the shop made famous by the hit reality show Pawn Stars. (more…)

ruby necklace, earrings, and ring
Ruby: The Undisputed King of the Red Gemstones

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

jennifer aniston
Vintage Diamond Cuts

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
Father’s Day Jewelry and Sports Cars: A Men’s Guide

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.
The Timeless Allure of Art Deco

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
Gold Rush: Gold Jewelry Design

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…)

Egyptian bird pin
Art Nouveau Jewelry

Vintage jewelry is experiencing a revival in popularity, perhaps inspired by a surge of period movies and shows like the PBS hit Downton Abbey. Art Nouveau in particular influences many contemporary jewelry designs today. The Art Nouveau design period lasted between 1890 and 1914, and was in many ways a response to the Industrial Revolution. (more…)

637 carat diamond necklace
World’s Most Expensive Necklace Sets a Guinness Record – L’Incomparable

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…)