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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

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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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…)

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…)

The Emerald Cut Engagement Ring

Sleek, elegant and beautifully understated, an emerald cut engagement ring is a great choice for someone who’s romantic and sophisticated. If you’re looking for diamond engagement ring inspiration, read on! (more…)

What Is a White Diamond?

Colored diamonds have been smashing sales records at auction houses the past few years, but here’s one that hasn’t gotten a lot of press: the white diamond. Yes, white! Get ready to fall in love with this remarkable beauty. (more…)

Wedding Anniversary Gemstone List: Years 21 – 60

A wedding anniversary is an occasion to shower your loved one with a special gift – and there’s nothing more precious than gems and jewelry! Rich in meaning, they symbolize the virtues that have made your marriage beautiful and lasting. (more…)

Art Deco Engagement Rings: How to Get the Style

Art Deco engagement rings recall an era of glamour and sophistication: elegant and timeless, this ring style is trending! Find out how to pick the right diamond shape, metal and more to create this style for your own engagement ring. (more…)