AGS Member Spotlight: ASBA USA, Inc.

ASBA USA, Inc. is a prime supplier of Tahitian cultured pearls and finished diamond, colored stone, and cultured pearl jewelry.

For over 25 years, ASBA USA has been owned and operated by the Israileff family and are long-time members of the American Gem Society. Joshua, Nathan, and Nicolai Israileff carry on their family’s tradition of providing fine quality jewelry.

The following images are just a mere sampling of the artistic, whimsical, and one-of-a-kind designs ASBA USA creates with pearls—their specialty—or a variety of gemstones.

 

If you’d like to see more designs by ASBA USA in person, contact a credentialed AGS jeweler near you.

The Mistaken Identity of November’s Birthstones

novemberbirthstonesThe month of November is represented by two richly colored gemstones: topaz and citrine. The gemstones look similar, in fact, that they’ve often been mistaken for one another throughout history. But they are actually unrelated minerals, and topaz occurs in a wide variety of colors far beyond yellow.

The good news is that both of these gemstones are fairly abundant and affordably priced, which means anyone can find a topaz or citrine that will fit their budget.

Topaz

Once upon a time, all gems that were yellow were once considered topaz, and all topaz were presumed to be yellow. Alas, it’s been discovered that topaz is available in a wide variety of colors, with Imperial topaz—a vibrant orange hue with pink undertones— being the most prized. Blue topaz, although abundant in the market, rarely occurs naturally and is often caused by irradiation treatment.

Pure topaz is colorless, but it can become tinted by impurities to take on any color of the rainbow. Precious topaz, ranging in color from brownish orange to yellow, is often mistaken for “smoky quartz” or “citrine quartz,” respectively—although quartz and topaz are unrelated minerals.

Topaz is a traditional gift for those with November birthdays. It’s also given to celebrate 19th wedding anniversaries, and certain types (blue and Imperial, respectively) acknowledge 4th and 23rd wedding anniversaries, as well.

When buying topaz, realize that this gem is most often treated with irradiation to produce desirable colors—particularly blue. Because these processes so closely resemble how topaz forms in nature, there is practically no way to determine whether a stone has been treated.

Here are a few designs from AGS members featuring the terrific topaz. Click on the images for a larger view.

Coffin & Trout Fine Jewellers

coffinandtrout-topaz

Bi-color topaz set in platinum, 18k rose and yellow gold accented by a pear shaped garnet, tourmaline, and round brilliant cut diamonds.

Goshwara

goswara-topaz

“Gossip” London Blue topaz emerald cut earrings on wire.

Corona Jewellery Company

corona-sunrisetopaz

Sunrise topaz and diamond ring.

Yael Designs

yael-topaz

The Nero pendant is 18k black gold featuring Imperial topaz, accented with rubies and champagne diamonds.

Citrine

The second birthstone for November, citrine, is the variety of quartz that ranges from pale yellow to brownish orange in color. It takes its name from the citron fruit because of these lemon-inspired shades.

The name “citrine” was commonly used to refer to yellow gems as early as 1385 when the word was first recorded in English. However, since the gem’s color closely resembled topaz, the two November birthstones shared a history of mistaken identities.

Once citrine was distinguished from topaz, it quickly became popular in women’s jewelry as well as men’s cufflinks and rings. Today, it remains one of the most affordable and frequently purchased yellow gemstones.

Whether shopping for a November birthday, a 13th wedding anniversary, or just an affordable piece of jewelry to complement any style, citrine makes a perfect gift. These beautiful design from AGS members ought to spark some gift ideas. Be sure to click on the images to get a larger view.

Gumuchian

gumuchian-citrine

These 18kt yellow gold Mosaic Tile earrings feature diamonds, honey citrine and yellow mother of pearl.

Gleim the Jeweler

gleim-citrine

Long, graceful citrine briolettes drop from a tracery of diamonds set in 18K white gold.

United Color Gems

unitedcolorgems-citrine

This pendant is 18k white gold featuring a cushion shaped citrine with a fancy cut top and round diamonds.

Ricardo Basta Fine Jewelry

ricardobasta-citrine

The Citrine Swirl Brooch features round citrine surrounded by diamonds and rubies, set in platinum and 18k yellow gold.

When buying topaz or citrine, be sure to shop with a trusted jeweler who will inform you whether or not the stones have been treated. To find an AGS jeweler near you, visit our Find a Jeweler search. The American Gem Society wishes you a very happy birthday, and if you’re celebrating an anniversary, may your love continue to flourish for years to come!

Erica Courtney’s Tucson Gem Show Tour

By Randi Molofsky

EC_Aug_headshotEach winter jewelry designers, stone dealers and rock hunters head to the desert for the world’s largest gem and mineral show. From teeny-tiny precious gems that go for tens of thousands a carat to massive geodes that have to be trucked in, the annual fair in Tucson, AZ, is a favorite of fine jewelry designers like Los Angeles-based Erica Courtney.

Although she regularly travels the globe in search of spectacular colored gems for her signature Drop Dead Gorgeous collection—recent trips include Tanzania and Hong Kong—it’s this pilgrimage to the Southwest that holds a special place in her heart.

“It’s just paradise for us,” Erica explains. “We get to see all these types of amazing gemstones, plus we get to meet new people in the industry. What could be better than networking and keeping ourselves updated with the latest gemstones?”

Below, Erica shares her three favorite gemstone finds from the show, and why exactly she’ll be bringing them home to use in upcoming collections.

EC tourmaline

Tourmaline

Tourmaline: Tourmaline has a bunch of different colorations, and we were loving them because we saw a lot of new and exciting colors. Some of them can be so bright and beautiful, it’s so hard to resist. Plus, the clarity of tourmalines is always exquisite.

EC csarite

Csarite

Csarite: Csarite is just such an interesting stone—did you know it’s only found in one place in the world, in the remote Turkish Anatolian mountains? Everyone loves the way the stone changes color from from kiwi greens in sunlight to raspberry purplish-pinks in candlelight; as well as the dispersion on the stone. It’s just so unique!

Purple Garnets: Purple garnets were also one the highlights of the show, they had such a saturated and vivid coloration—I have never seen such beautiful garnets! So different and super sparkly, just a shade different from amethyst. Gorgeous!

One look at Erica’s designs and you’ll understand why colored gemstones are so important for inspiration. Here are three brand new pieces by Erica Courtney with her signature detailed settings and bold color.

spinel

18K yellow gold “Sayeda” ring featuring a 5.49ct spinel, accented with 1.26ctw Rubelite Tourmaline and 1.21ctw diamonds.

mint tourmaline

18K yellow gold “Crossover” ring featuring a 7.42ct mint tourmaline, accented with two 0.47ctw opals on the sides and 1.09ctw diamonds.

pariaba

18K yellow gold “Cigar Band” ring featuring a 2.10ct paraiba tourmaline cabochon, accented with 0.22ctw paraiba tourmaline and 0.65ctw diamonds.

Happy Birthday November!

By Amanda L. Colborn

November has two beautiful birthstones associated with the month. If you’re a fan of color or variations of colored stones, than November is the perfect month for you. Both Topaz and Citrine shine in popularity because of their outstanding colors. They both also have a very special place in history!

Learn more about each stone below:

Topaz

Topaz is a gemstone available in a rich rainbow of colors. Prized for several thousand years in antiquity, at the time — all yellow gems were called topaz. Often confused with citrine quartz (yellow) and smoky quartz (brown), quartz and topaz are separate and unrelated mineral species. The most prized color of topaz is called Imperial topaz after the Russian Czars of the 1800s and features a magnificent orange body color with pinkish undertones. Topaz also comes in yellow, pink, purple, orange, and the many popular blue tones.

Topaz from Goshwara

Topaz from Goshwara

Topaz from Goshwara

Topaz from Goshwara

Citrine

Citrine, the other birthstone for November is known as the “healing quartz.” This golden gemstone is said to support vitality and health while encouraging and guiding hope, energy and warmth within the wearer. Citrine is also known as a success and prosperity stone. So much so that it is called the “Success Stone.” It is said to promote and manifest success and abundance in all areas, and in many ways. Citrine can be found in a variety of shades ranging from pastel yellow to dark brownish orange. It is one of the most affordable of gemstones and plentiful in nature. Citrine is found most frequently in Brazil, Bolivia, and Spain.

Citrine from Goshwara

Citrine from Goshwara

Citrine from Goshwara

Citrine from Goshwara

To learn more about any of the year’s birthstones, click here: https://www.americangemsociety.org/birthstones

Celebrating the birthstones of November!

By Amanda L. Colborn, Marketing Coordinator at AGS

Topaz

Topaz is a gemstone available in a rich rainbow of colors. Prized for several thousand years in antiquity, at the time — all yellow gems were called topaz. Often confused with citrine quartz (yellow) and smoky quartz (brown), quartz and topaz are separate and unrelated mineral species. The most prized color of topaz is called Imperial topaz after the Russian Czars of the 1800s and features a magnificent orange body color with pinkish undertones. Topaz also comes in yellow, pink, purple, orange, and the many popular blue tones.

Photo from Parlé  Jewelry Designs

Photo from Parlé Jewelry Designs

Photo from Parlé Jewelry Designs

Photo from Parlé Jewelry Designs

 

Citrine

Citrine, the other birthstone for November is known as the “healing quartz.” This golden gemstone is said to support vitality and health while encouraging and guiding hope, energy and warmth within the wearer. Citrine is also known as a success and prosperity stone. So much so that it is called the “Success Stone.” It is said to promote and manifest success and abundance in all areas, and in many ways. Citrine can be found in a variety of shades ranging from pastel yellow to dark brownish orange. It is one of the most affordable of gemstones and plentiful in nature. Citrine is found most frequently in Brazil, Bolivia, and Spain.

Photo from Supreme Jewelry

Photo from Supreme Jewelry

Photo from Parlé Jewelry Designs

Photo from Parlé Jewelry Designs

Photo from Parlé Jewelry Designs