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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

February Birthstone: Where Does Amethyst Come From?

If you were born in February, your birthstone is amethyst – a purple gemstone that has starring roles in the jewelry and regalia of kings and queens. The February birthstone is found in the personal collections of Great Britain’s and Russia’s royal families. Britain’s Duchess of Windsor (1896-1986) commissioned a now famous amethyst necklace. Empress Catherine II (1729-1796) of Russia, also known as Catherine the Great, was particularly fond of amethyst and used the gem in buttons, earrings, necklaces and aigrettes (hair ornaments that usually held feathers, or were in the shape of a feather, and were often set with gems). Ancient cultures also loved amethyst and it has been found in 4,400-year-old jewelry. (more…)

How to Travel Hong Kong: Gemstone Edition

Though the name literally translates to “Fragrant Harbor,” Hong Kong is a crowded, tropical jewel of a town, with one of the highest square foot rent costs in the world and known for being the business and fashion gateway into China.

Hong Kong’s sovereignty was transferred from the United Kingdom to China in 1997. Hong Kong has maintained its unique personality, making it an exotic locale for Westerners and Chinese alike. (more…)

January Birthstone: Where Do Garnets Come From?

If you’re lucky enough to be born in January, garnet is your birthstone. A gem found around the world, garnet comes in a painter’s palette of colors. So there’s bound to be a hue to suit your taste.

Garnets also come with a rich history. Red garnet necklaces graced the pharaohs of Ancient Egypt. Ancient Romans used carved garnets in signet rings to stamp wax seals safeguarding important documents. And the clergy and nobility of the middle ages had a particular affinity for garnet. (more…)

Jewelry Trends: 2015 Hits and Our Predictions for 2016

Now that 2015 is coming to a close, it’s time to review the jewelry trend predictions the GIA social team made for the year.  We were so pleasantly surprised at their accuracy that we asked them to peer into their crystal balls again to see what will be trending in jewelry for 2016. (more…)

Holiday Buying Guide: How to Clean Jewelry

Winter is here, and that means the holiday season is upon us! You might have already unpacked your winter blankets from their storage closet and maybe your down coat as well. But have you given your jewelry a good cleaning lately? (more…)

Famous Birthstone: December’s Turquoise Empress Marie-Louise Diadem

When we think of royalty, images of crowns, tiaras, and diadems instantly come to mind. Beautiful head ornaments intricately crafted in gold and encrusted with rare gemstones were once used as symbols of nobility, status, and the right to rule. They dazzled onlookers with their splendor, and even though royal families may have faded in political power, their relics continue to captivate. (more…)

Holiday Buying Guide: Five Tips to Plan the Perfect Engagement Proposal

Are you ready to get down on one knee and pop the question? Ask for her hand in marriage? Put a ring on her finger? This is a momentous occasion, and one that requires some planning.

Once you know you’re ready to propose, where do you start? There’s a lot to consider: the ring, the venue, the right words to say and more. We have it sketched out for you below, ready for you to customize to fit your relationship and partner’s preferences.

Are you ready to write your perfect proposal story? Here we give you five tips to plan the perfect engagement proposal. (more…)

Secret Messages in Jewelry – Acrostic Jewelry

Want to send a secret message to your beloved using gemstones? Then you’ll need to know about acrostic jewelry.

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Famous Birthstone: October’s Sun-god Opal

There are three main types of opal: white, black and fire. Some precious opals emit spectral colors from every angle, each one quickly flashing and glowing as bright as the next. This phenomenon is called play-of-color and has enchanted people throughout the ages.

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Pearl Jewelry Essentials: Five Easy Pieces

If you’ve never uttered the word “wardrobe” in the same sentence as “pearls,” now might be a good time to start.

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A Conversation with Martin Katz – A Jeweler Like No Other

From micro-pave to mega-watt glam, jeweler Martin Katz dazzles Hollywood stars and titans of industry alike. In fact, you’ll spot his spectacular jewelry collections on many of the celebrities strolling the red carpet at the Emmy Awards this month. (more…)

How to Travel Brazil: Gemstones Edition

Brazil is a tropical locale well-known for exotic animals and plants, futból, sandy beaches, and jungle-clad mountains. Some of these mountains rise like monuments in the middle of cities, such as Sugarloaf Mountain in the ever-colorful and playful Rio de Janeiro. The country also contains the renowned Amazon River, not to mention superb gemstones in a kaleidoscope of saturated, luscious colors.

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