CollectionsJul 25, 2025
Piece of the Week: Jemma Wynne’s ‘Forme’ NecklaceAnne Hathaway was seen wearing the toggle necklace three times while filming scenes for “The Devil Wears Prada 2.”
Brought to you by
Beyond Borders: Crucial Factors in Colored Stone Origin Determination
Navigate origin determination with Continuing Education seminars offered by the GIA Alumni Collective™.
Brought To You By GIA Alumni Collective™
The value of high-end colored stones can increase dramatically depending on their origins, making 'country of origin' a critical value factor, alongside stone quality factors such as color, size, and shape. What does it take to make accurate, authoritative origin determinations?
Comprehensive Sample Collections
GIA’s field gemologists travel the world investigating mines and collecting samples for GIA’s unrivalled gemstone reference collection. With 26,002 colored gemstone samples and counting, including corundum, emeralds, spinels, alexandrites, and more, GIA’s reference collection only continues to grow. These gems are meticulously documented and researched. As databases expand and more information is gathered, previously held beliefs about geographic origin criteria may shift. For instance, the assumption that orange fluorescence in blue sapphires solely indicated a Sri Lankan origin was debunked when GIA researchers uncovered its presence in multiple low-iron metamorphic deposits.
Advanced Scientific Instruments
Advanced instruments are imperative for laboratories that issue geographic origin reports. As these instruments become increasingly sophisticated, more expertise is required to operate them. This is especially true for certain chemical analysis techniques, such as laser ablation. The cost of such equipment may be prohibitive for smaller labs, but GIA labs utilize the most premium microscopes and spectroscopy instruments to ensure accurate determinations.
Geography Versus Geology
Interesting fact: Did you know that gem deposits are determined by geology, not geography? Country boundaries don't affect where gems form, and gemstones from different deposits may possess similar properties. For example, some blue sapphires from Myanmar are practically indistinguishable from those originating in Sri Lanka. Understanding these technicalities is vital for accurate gemstone assessments.
Continued Education Opportunities with GIA Alumni Collective
The GIA Alumni Collective's Country of Origin seminars covering ruby, sapphire, and emerald offer professionals the chance to learn from field researchers dedicated to these studies. The seminars introduce topics like global colored stone deposits, advanced analysis techniques, and origin reference collection building. Interactive sessions, live demonstrations, and digital reference materials provide an engaging and comprehensive learning experience, including fascinating case studies.
Understanding the complexities of country of origin determination is a challenging yet crucial aspect of the gemstone trade. By participating in these comprehensive seminars, attendees can gain critical insights into the value and provenance of gemstones to make more informed decisions in this rapidly-evolving industry.
More on Sourcing
The Latest
Events & AwardsJul 25, 2025
Pre-Registration Open for September Hong Kong ShowJewellery & Gem World Hong Kong is scheduled for Sept. 15 to 21, and buyer pre-registration will be available until Sept. 7.
FinancialsJul 25, 2025
LVMH Sales Slip in H1 Amid ‘Prevailing Uncertainties’Renovations at Tiffany & Co. stores ate into profits in the company’s watch and jewelry division.
Brought to you by
Taking the Moment Head On: How Rio Grande Champions the Present & Future of Fine JewelryAs a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.
Events & AwardsJul 24, 2025
2 Retailers to Receive 2026 Gem Award for Lifetime AchievementMark and Candy Udell of London Jewelers will receive the honor at the 24th annual Gem Awards next March.
Weekly QuizJul 25, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
CollectionsJul 24, 2025
Francesca Villa Adds Dimension to Her Intaglio CharactersThe “Fantasia” jewelry collection turns the intaglio animals from her “Close Encounters” collection into 3D characters.
WatchesJul 24, 2025
Breitling Drops Super Bowl Watch Honoring the Philadelphia Eagles The special Classic Avi Chronograph 42 with an Eagles-green dial is limited to 59 pieces, a nod to the Super Bowl Philadelphia just won.
Brought to you by
Investing in the Next Generation of Bench JewelersThe Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.
CrimeJul 23, 2025
JSA Warns of Violent String of Smash-and-Grabs in California JSA has received reports of mobs swarming jewelry stores, driving cars into the storefront or smashing through the windows.
CollectionsJul 23, 2025
Silvia Furmanovich’s ‘Kashmir’ Collection Is a Tribute to Northern IndiaThe “Kashmir” collection features centuries-old craft techniques made in collaboration with the region’s master papier-mâché artisans.
IndependentsJul 23, 2025
Montreal’s Ecksand Eyes Move to SoHoCreative Director Erica Bianchini shared why the jeweler is looking to expand into the U.S. and how it’s putting Canadian craftsmanship on the map.
IndependentsJul 23, 2025
IJO Raises Nearly $37K for LA Fire Relief Two Los Angeles Fire Department stations plan to use the donations to upgrade their equipment and tools.
CollectionsJul 22, 2025
Jewelry With a Rock ‘n’ Roll Aesthetic Heads to Sotheby’s LondonNext week, the auction house will kick off a selling exhibition of jewelry by British artist Hannah Martin and Coldplay’s Guy Berryman.
ColumnistsJul 22, 2025
The Gifting Gap: How to Market Jewelry Beyond the HolidaysEmmanuel Raheb shares the top five gifting moments outside of major holidays that jewelers should build marketing campaigns around.
Events & AwardsJul 22, 2025
NY Now’s Summer Market Returns in AugustThe wholesale trade show’s Luxury Lifestyle section will showcase established and emerging jewelry designers.
MajorsJul 21, 2025
Rio Grande Expands Personalization OfferingsAs demand for custom jewelry grows, the company is expanding its services to support retailers.
Events & AwardsJul 21, 2025
NAJA’s 2025 ‘Ace It’ Conference To Go VirtualThe mid-year conference for jewelry and watch appraisers is slated for Aug. 9 to 10 on Zoom.
TrendsJul 21, 2025
Amanda’s Style File: Graduated With Honors Graduated stones make for elevated tennis-style pieces and dramatic statement necklaces.
Events & AwardsJul 21, 2025
Gem Awards Now Accepting Nominations for 2026Nominations in the categories of Jewelry Design, Media Excellence, and Retail Innovation will be accepted through July 30.
MajorsJul 18, 2025
Lewis Heyman on Sourcing Gemstones, Post-Retirement PlansHe retired last month after 28 years traveling the world to source the very best gemstones for his family’s jewelry business, Oscar Heyman.
TrendsJul 18, 2025
Piece of the Week: CCWW Designs’ Shell Charm NecklaceThe charm necklace features six nautical charms of shells and coral that founder Christina Puchi collected on Florida’s beaches.
MajorsJul 18, 2025
Plumb Club Elects New Board MembersThe organization elected its youngest vice president as it looks to draw in fresh talent.
TechnologyJul 18, 2025
Brad Campbell, John Liebler Join Clientbook’s Executive Team Campbell joins the company as vice president of business development while Liebler is the new vice president of operations.
CollectionsJul 17, 2025
2026 Winter Olympic Medal Design Symbolizes UnityThe medals feature a split-texture design highlighting the Games’ first time being hosted by two cities and the athletes’ journeys.
Supplier BulletinJul 17, 2025
The INSTORE Jewelry Show 2025: Your Holiday Preparations, All Wrapped Up! Sponsored by The INSTORE Jewelry Show 2025
SurveysJul 17, 2025
The Most Recommended Brands in the World, According to YouGovGlobally, travel and transportation brands reigned, while in the U.S., alcoholic beverage companies and a lingerie brand took the top spots.
IndependentsJul 17, 2025
Gina Ferranti of GiGi Ferranti Jewelry Dies at 59The Brooklyn-based jewelry designer is remembered as a true artist and a rare talent.
