Colored Stones & Pearls 归档

How to Travel Brazil: Gemstones Edition

September 15, 2015

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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Van Gogh’s The Starry Night and the Starry Night Sapphire

July 29, 2015

July 29th marks the 125th anniversary of the passing of Vincent van Gogh (1853-1890). GIA offers a tribute to the great artist by celebrating his beloved painting, The Starry Night, and its dazzling companion piece, the Starry Night Sapphire – a 112 carat star sapphire.

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Hot Gemstones

July 20, 2015

We’re always on the lookout for trends, and we spotted a fun one. Several gemstones that never had much cachet are now in vogue. These beauties have been showing up on the runway and in fashion magazines.

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Gems in a Jurassic World

June 8, 2015

Jurassic World is about to roar through theaters, and that made us nostalgic for the original movie, Jurrasic Park (1993) – especially the memorable scene where scientists extracted dinosaur blood from a mosquito trapped in amber.

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Gemstones: Natural Treasures to Celebrate Earth Day

April 22, 2015

Happy Earth Day! How grateful we are to the Earth for the basic elements that sustain our lives and the natural beauty that makes life worth living. Among Mother Earth’s many wondrous gifts are rare rocks and gem crystals – treasures that form deep beneath her surface. When fashioned and polished, they become the strikingly beautiful gemstones that have captivated mankind for millennia. Gemstones in their rough, unpolished form have an intrinsic beauty of their own, hinting at the potential of what they can become.

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Gems and Ultrasonic Cleaners

April 10, 2015

If you love your jewelry, you’ll want it to always look as stunning as it did when it was new.

Ultrasonic cleaners can restore the beauty of your bejeweled treasures. These machines generate high-frequency sound waves that travel through water or a cleaning solution creating heat and pressure. Ultrasonic machines can effectively clean jewelry by dislodging dirt and debris from behind gems and other hard-to-reach places. (more…)

Celebrating Richard T. Liddicoat – Architect of the GIA International Diamond Grading System™

March 2, 2015

March 2nd is a special day for us at GIA, jewelry aficionados, and those shopping for diamonds and diamond engagement rings: it’s the birthday of Richard T. Liddicoat (1918 – 2002) – the father of modern gemology, an inspiring teacher to thousands of jewelers, and a leader in the development of the GIA International Diamond Grading System™ and GIA diamond grading reports. (more…)

Winter Blue Gemstones

February 27, 2015

In the midst of the winter season, give a loving look at our favorite blue gemstones and jewelry. From a blue star sapphire to a vivid blue diamond, each of the featured blue gemstones below promises a cool blue hue to take you through the rest of the winter. (more…)

GIA Pink Gemstone Buying Guide

February 10, 2015

Dreamy and romantic, the month of February is dedicated to sharing your love. Show appreciation for the most important people in your life with a token of affection. This gift will serve as an everyday reminder of your feelings for that person. A pink gemstone is a beautiful choice to consider. As you search for the perfect Valentine’s jewelry gift, learn about different types of pink gems so that you will know which one is perfect for you. (more…)

How to Pick a Heart-Shaped Gemstone for your Sweetheart

February 5, 2015

Valentine’s Day is nearing, and it’s hard to resist that warm feeling associated with this holiday. When you envision the perfect gift for Valentine’s Day, the first thing that comes to mind is a heart shape. So why not turn up the romance with jewelry that features heart-shaped gemstones? Like all matters of the heart, making a wise decision in your purchase requires care and thought. (more…)

Famous Birthstones: Garnet – The Antique Pyrope Hair Comb

January 5, 2015

Happy Birthday January! We begin our famous birthstone series with none other than January’s birthstone, garnet. While there are many different species and varieties of garnet that come in many colors, perhaps the most well-known is pyrope garnet. Usually deep red, this gem is featured in the antique pyrope hair comb, a stunning and historic example of pyrope’s beauty, and GIA’s famous birthstone for January babies. (more…)

Turquoise Buying Guide

December 15, 2014

Found only in a few places on earth, turquoise is the second of December’s two official birthstones. Sought after for its robin’s egg blue and unique spiderweb-like patterns, it’s a perfect gem for unusual jewelry designs. (more…)

GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

How to Travel Brazil: Gemstones Edition

Van Gogh’s The Starry Night and the Starry Night Sapphire

Hot Gemstones

Gems in a Jurassic World

Gemstones: Natural Treasures to Celebrate Earth Day

Gems and Ultrasonic Cleaners

Celebrating Richard T. Liddicoat – Architect of the GIA International Diamond Grading System™

Winter Blue Gemstones

GIA Pink Gemstone Buying Guide

How to Pick a Heart-Shaped Gemstone for your Sweetheart

Famous Birthstones: Garnet – The Antique Pyrope Hair Comb

Turquoise Buying Guide

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