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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

2017 Jewelry Trends: Hot Styles for the New Year

The New Year is upon us, and it’s the perfect time to freshen up your jewelry wardrobe. To help you spot what’s hot, we asked experts at GIA for their predictions for 2017 jewelry trends.
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What Are Simulated Diamonds?

Simulated diamonds — or diamond simulants — may look like diamonds, but they don’t have the same chemical, physical and optical properties. If you’re shopping for a diamond imitation, make sure you know the unique characteristics of the stone you are getting.
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Lab-Grown Diamond Jewelry: What are Synthetic Diamonds?

Synthetic diamonds are grown in laboratories and have essentially the same chemical composition, crystal structure and physical properties as natural diamonds. They’re real diamonds and not ‘fakes,’ but they are not the same as natural diamonds.
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December Birthstones: Where Do Turquoise, Tanzanite and Zircon Come From?

If you were born in December you have a lot to celebrate, including three December birthstones: turquoise, tanzanite and zircon. With a spectrum of colors to choose from, learning about where the sources of these gems will only add to their appeal. (more…)

How to Choose a Marquise Diamond

Are you an incurable romantic searching for an engagement ring with an aristocratic air? Consider the marquise diamond: It’s beautiful. It has a royal pedigree. And it looks fantastic on the finger. But before you shop, learn what to look for. (more…)

How to Buy Diamonds Online: Five Non-Negotiable Rules

When it comes to buying diamonds and diamond jewelry online, consumers face a dizzying array of choices in terms of quality, styles and price points. And they also face the uncertainties of buying something sight-unseen. So how can you protect yourself? How safe is it to buy diamonds online? (more…)

Edwardian Engagement Rings: How to Get the Look

Once worn by the English aristocracy, Edwardian jewelry is a look that’s popular with today’s brides-to-be. Antique Edwardian engagement rings might be out of reach, but you can still create a beautiful engagement ring rich in period motifs. (more…)

November Birthstone: Where Do Topaz and Citrine Come From?

Born in November? Lucky you! Your November birthstone is not one, but two beautiful gems: One offers a rainbow of colors; the other is famed for its rich yellows. Make choosing easier by learning more about them, including where they come from.
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Warding Off the Evil Eye with Jewelry and Gemstones

Scoff at the evil eye? Belief in this ancient curse is still widely held. While we can’t support the idea scientifically, we do love the gems and jewelry thought to offer protection against the malevolent look believed to cause sickness, poverty and even death. (more…)

Moonstone: A Gem to Celebrate the Moon

According to Hindu mythology, moonstone is made of moonbeams! And it’s easy to see why so many cultures also associate the gem with moonlight. Read on to learn all about this remarkable gem, including what gives moonstone its other-worldly glow. (more…)

Black Diamonds: What You Need to Know

From cast-asides to starring roles, black diamonds have taken quite a journey. They’re even vying for position as center stones in engagement rings! But it pays to look beyond their unique appearance to learn more about this enigmatic gem. (more…)

A Look at First Lady Nancy Reagan’s Jewelry Collection

Explore Christie’s auction of “The Private Collection of President and Mrs. Ronald Reagan” to learn more about the jewelry and style of Nancy Reagan, one of America’s most well-known first ladies. (more…)