The luminous pearl is June’s coveted birthstone. This enchanting treasure originating from the sea is a timeless wardrobe staple, beloved by fashion icons including Audrey Hepburn and Coco Chanel. In this four-part series, we’ll be (1) sharing the source and history of pearls, (2) exploring different pearl varieties, (3) assessing factors behind pearl value, and (4) learning about how to care for your pearls. (more…)
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…)
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…)
This stunning green gem gets its name, from the ancient Greek word “smaragdos,” meaning “green stone,” and helps to celebrate those born in May as well as 20th and 35th wedding anniversaries. Its lush green hue has soothed souls and excited imaginations since ancient times, and in 2013 emerald green is the designated “Color of the Year”. (more…)
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…)
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…)
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…)
When buying a diamond, it is important to understand what diamond carat weight is and how the weight of a diamond is measured.
A diamond’s cut and its shape are often confused, but we’re here to help! A diamond’s shape refers to its outline when viewed face up. A diamond’s cut refers to its facet arrangement. (more…)
No diamonds are entirely without inclusions or blemishes, and these characteristics help gemologists accurately determine natural diamond clarity. (more…)
Last week, we gave a broad overview of the 4Cs. Today, we discuss how to evaluate diamond color. Did you know most diamonds are not truly colorless and contain subtle hints of yellow or brown? (more…)
Use of this site signifies your agreement to its terms of use.
© 2002 – 2025 Gemological Institute of America Inc. GIA is a nonprofit 501(c)(3) organization.
All rights reserved.
