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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

Opal: The gemstone with fire inside

The October birthstone, opal, is noted for its individuality, magic, and mystery. Its unique display of flashing rainbow colors is unlike any other gem, and has been compared to volcanoes, galaxies, and fireworks. (more…)

Discover the Powers of Your Birthstone

Think of every passing year as an opportunity to celebrate with your birthstone. In fact, people have been wearing birthstone jewelry since the 15th century in Poland, when they were encouraged to own all 12. And while birthstone secrets and lore can be found right here on our blog, today we share what makes YOUR birthstone a powerful statement of your finest qualities. (more…)

Peridot: The Extreme Gem

August’s fascinating birthstone may be called the “extreme gem” because it is formed in the most extreme conditions, found in lava, meteorites and deep within Earth’s mantle. Peridot has been found in pallasite meteorites, which contain remnants of our solar system’s birth. In 2006, peridot was found in comet dust brought back from the Stardust robotic space probe. (more…)

Caring for June’s Birthstone: Pearls Part 4

The legendary beauty of June’s luminescent birthstone has been celebrated for centuries. We explored the pearl’s history and lore, the various types of pearls available, and how a pearl’s value is assessed and what to look for when purchasing a pearl. Now we are going to discuss how to care for one! (more…)

7 Factors Describe June’s Birthstone: Pearls Part 3

Celebrated for its mesmerizing beauty, the Grace Kelly of gems is June’s elegant birthstone–the pearl. We previously discussed the pearl’s history and lore, and the different types of pearls. Now let’s delve into how a pearl’s value is assessed, and what to look for when purchasing a pearl. (more…)

The Varieties of June’s Birthstone: Pearls Part 2

June’s lustrous birthstone is celebrated around the globe for its compelling beauty. Earlier this week we discussed the source and history of the pearl. Today we’ll be diving into the various types of pearls. (more…)

The History & Lore of June’s Birthstone: Pearls Part 1

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…)

Emerald Birthstones: The secret power of a green gemstone

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…)

Aquamarines from Afghanistan
Aquamarine: A Member of the Mineral Species Beryl

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…)

All About Birthstones: Topaz for November

There are two November birthstones that command the attention of consumers and gem connoisseurs alike – topaz and citrine. In this post, we’ll discuss topaz, a gemstone that is widely cherished for its array of colors and distinctive look. (more…)

October Birthstone: All About the Tourmaline

October babies have the pleasure of enjoying two birthstones to commemorate their birthdays –tourmalines and opals. This post is all about the October birthstone, tourmalines. (more…)

September Birthstone: The Sapphire

September’s birthstone, sapphire, is unique among gemstones. It is a very hard gemstone, second only to diamond. Sapphire is a variety of the mineral corundum. While other stones are known for their singular hues, sapphires come in a variety of colors. (more…)