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September 30, 2015
AGTA ePrism

AGTA Spectrum Awards™ NYC Drop-off Deadline is October 6th!
The AGTA Spectrum Awards™ celebrate what happens when we combine the unimaginable power of nature with the unlimited reach of the imagination. A perfect pairing of gemstones and settings is not an everyday occurrence. In fact, it may happen once in a life time! Deadline for New York Drop-off is October 6th. MORE

October's Birthstone - Opal
Add More Color To Your Life
A beautiful opal is one of a kind: a natural artwork with a unique pattern of rainbow flashes of color unlike any other. It's as individual as your personality. You may prefer an opal that serenely glows with pinpoint flashes of the blues and greens of the sea and sky.

Discover Mozambique's Montepuez Ruby Mine with GIA's Field Gemologists
GIA - AGTA Member
In this video, you'll explore Mozambique's Montepuez ruby deposit with GIA's dedicated field gemology team. First, you'll see how the legal owner of the mining rights—Montepuez Ruby Mining (MRM), a subsidiary of the Gemfields corporation—works the area in steps from prospecting through separating the rubies from the ore, to sorting and eventual sale at their Singapore rough auction.

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3-D Printing in Jewelry Markets Will Reach $11 Billion by 2020
The jewelry and watch industry had total revenue of almost $300 Billion in 2014. Jewelry is the primary industry studied in a recent 3-D printing report from SmarTech Markets Publishing entitled Opportunities for 3D Printing in Precious Metals.

Cindy's TrendTracker: Big earrings
National Jeweler
Statement earrings swept the Emmy Awards this past Sunday and big earrings were the talk of the recent spring fashion runways. Let's get ready for the residual buzz by bringing out big earrings and sharing them with customers. MORE

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Zodiac-Inspired Jewelry: Libra
GIA 4C's Blog
Libras have an iconic astrological sign, noble personality traits, and beautiful jewelry to go with it. MORE

The superstitious history of opal jewellery
The Jewellery Editor
Birthstone of October, colour-changing opals are one of the most widely loved gems by antique jewellery aficionados and modern jewellery designers alike. MORE

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Fifteen Favorites from Bonhams California Jewels Sale
Jewels du Jour
The million dollar lots in this season's jewelry auctions are not the only jewels worth highlighting, oftentimes the low estimate pieces happen to be the most fun – and accessible. Bonhams California Jewels sale focuses on exactly that, affordable vintage jewels that appeal to everyone. MORE

5 Reasons Your Online Business Isn't Growing
Today, your business can either fail or succeed based off of how well you do on the Internet. You may have an online business, or a component of your business is online, but either way, your sales online dramatically affect your growth. MORE

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Step inside the Diamond Council Reading Room!

The Diamond Council of America invites AGTA members to visit our online Reading Room, which features a library of articles, videos and other resources to help your business thrive.


Silver Promotion Service



IGI, the Standard
of Excellence
in Gemology
since 1975

IGI, a worldwide gemological laboratory, providing objective and accurate grading, identification and appraisal reports for gemstones and fine jewelry along with laser inscription and educational courses
Call for ePRISM Content
ePRISM is always looking for interesting content.  If you have stories related to colored gemstones or pearls to share with our readers please email them to for consideration.  Send web links or separate files.

The articles and website links appearing in ePrism, and not written by the American Gem Trade Association, are included in the e-publication as general information from -- and for -- the Trade, but do not necessarily reflect the opinion or endorsement of the American Gem Trade Association and its members.

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