MajorsNov 10, 2025
Jewelers Focus on Love, Joy In 2025 Holiday Campaigns Tiffany & Co., David Yurman, and Pandora have launched holiday campaigns depicting their jewelry as symbols of affection and happiness.
GradingFeb 01, 2017
SSEF Begins Offering Age-Dating of Pearls
The Swiss company said it is the first gem laboratory to introduce age-dating for natural pearls as a client service.
The oldest natural pearls examined using the carbon-14 age-dating method by SSEF were recovered in the Cirebon shipwreck off Java in Indonesia. They date back to the 11th century.
Basel, Switzerland--The Swiss Gemmological Institute SSEF said it has become the first gem laboratory in the world to introduce age dating of pearls using carbon-14 (14C) as a service to its clients.
The research and services are offered in partnership with the Ion Beam Physics Laboratory at leading university ETH Zurich.
According to the ETH Zurich website, the 14C method measures the ratio of radioactive carbon (14C) to normal carbon (12C) in the nacre to determine the true age of pearls.
It can be used to provide valuable information about both the age of loose pearls and pearls set in jewelry.
Age determination not only can help support evidence of historic provenance in the case of antique jewelry and iconic natural pearls, but also can also be used to identify fraud in cases where younger pearls are mounted in historic jewelry or have been treated to appear older than they actually are.
The 14C age also is helpful to decide whether a pearl is natural or cultured since cultivation methods for certain mollusk species only started in the 20th century.
Age-dating, especially when it comes to historic pearls, won’t give a single date of formation, the SSEF said, but rather a range of years in which the pearl formed. It still can confirm, however, that the pearl is not, in fact, a modern formation.
SSEF Director Michael S. Krzemnicki told National Jeweler that age dating of pearls has been a topic of research at the lab for years driven by scientific curiosity and interest in the trade in this new approach for pearl testing.
“Having analyzed a selected number of pearls of clients in the last few months, we have now decided to offer radiocarbon age-dating as a specialized service to our clients,” he said.
More on Grading
The Latest
SurveysNov 10, 2025
5 Things Retailers Should Know About Holiday Shoppers This YearThe National Retail Federation is bullish on the holidays, forecasting retail sales to exceed $1 trillion this year.
AuctionsNov 10, 2025
300+ Colored Diamonds Up for Auction at Christie’sLate collector Eddy Elzas assembled “The Rainbow Collection,” which is offered as a single lot and estimated to fetch up to $3 million.
Brought to you by
Roseco Releases New Full-Line CatalogRoseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.
EditorsNov 07, 2025
Piece of the Week: An MVP’s Sapphire Tennis Necklace At the 2025 World Series, the Los Angeles Dodgers’ Yoshinobu Yamamoto sported a custom necklace made by California retailer Happy Jewelers.
Weekly QuizNov 06, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
IndependentsNov 07, 2025
Foundrae’s New Palm Beach Location Is a ‘Golden Solarium’The brand’s seventh location combines Foundrae’s symbolic vocabulary with motifs from Florida’s natural surroundings.
FinancialsNov 07, 2025
Watches of Switzerland’s H1 Sales Up 8%The retailer also shared an update on the impact of tariffs on watch customers.
Brought to you by
Jewelers of America Aligns New Mission to Create Meaningful Impact for MembersFrom educational programs, advocacy, and recent MJSA affiliation, Jewelers of America drives progress that elevates businesses of all sizes.
SourcingNov 06, 2025
Pink Tourmaline Bracelet, Emerald Suite Take Top Spectrum Honors Pink and purple stones were popular in the AGTA’s design competition this year, as were cameos and ocean themes.
IndependentsNov 06, 2025
Greenwich St. Jewelers Hosts Raffle Supporting Food RescueAll proceeds from the G. St x Jewel Boxing raffle will go to City Harvest, which works to end hunger in New York City.
IndependentsNov 06, 2025
Cornell’s Jewelers Names New PresidentCourtney Cornell is part of the third generation to lead the Rochester, New York-based jeweler.
SourcingNov 06, 2025
De Beers’ Production, Sales Increase in Q3 De Beers also announced more changes in its upper ranks ahead of parent company Anglo American’s pending sale of the company.
WatchesNov 05, 2025
Shinola President Steps Down Just as He Starts Former Signet CEO Mark Light will remain president of Shinola until a replacement for Ulrich Wohn is found.
AuctionsNov 05, 2025
Taylor Swift’s Engagement Ring Designer Makes Her Auction DebutKindred Lubeck of Artifex has three rings she designed with Anup Jogani in Sotheby’s upcoming Gem Drop sale.
FinancialsNov 05, 2025
Pandora Posts Modest Q3 Sales Growth Amid ‘Weak’ Consumer Sentiment The company focused on marketing in the third quarter and introduced two new charm collections, “Pandora Talisman” and “Pandora Minis.”
FinancialsNov 05, 2025
Brilliant Earth’s Q3 Sales Climb 10%The jewelry retailer raised its full-year guidance, with CFO Jeff Kuo describing the company as “very well positioned” for the holidays.
Policies & IssuesNov 04, 2025
Supreme Court to Hear Tariffs Case WednesdayAhead of the hearing, two industry organizations co-signed an amicus brief urging the court to declare Trump’s tariffs unlawful.
MajorsNov 04, 2025
Danny Clark to Become Stuller CEO, Succeeding Matt StullerStuller COO Belit Myers will take on the additional role of president, with all changes effective at the start of 2026.
ColumnistsNov 04, 2025
Peter Smith: What Do Birds Have to Do With the Price of Gold? Smith cautions retailers against expending too much energy on things they can’t control, like the rising price of gold.
TrendsNov 04, 2025
Amanda’s Style File: Fall Colors for November BirthdaysCitrine and topaz are birthstones fit for fall as the leaves change color and the holiday season approaches.
IndependentsNov 04, 2025
Weston Jewelers Heads to Fort LauderdaleThe family-owned jeweler will open its fourth store in Florida in late 2027.
CrimeNov 03, 2025
Men Dressed as Construction Workers Burglarize Jeweler’s Home The NYPD is looking for three men who stole a safe and jewelry valued at $3.2 million from the home of a jeweler in Jamaica Hills, Queens.
MajorsNov 03, 2025
Matthew Rosenheim Takes Over as JA Board ChairThe trade organization also announced its executive committee and five new directors.
CollectionsNov 03, 2025
Muse’s ‘Have a Heart’ Collab Returns, Now With DDGThe “Have a Heart x Diamonds Do Good” collection is championed by model and humanitarian Flaviana Matata and will benefit her foundation.
AuctionsNov 03, 2025
Kashmir Sapphire Ring Tops Christie's Online AuctionThe ring, set with a nearly 17-carat Kashmir cabochon sapphire, sold for $1 million.
TrendsOct 31, 2025
Piece of the Week: A Spinner Fit for ‘Frankenstein’This “Mother Father” spinner necklace from Heavenly Vices Fine Jewelry draws inspiration from Victorian Era jewelry.
CrimeOct 31, 2025
5 More Arrested in Louvre Heist, Jewelry Still Missing The suspects were rounded up in Paris and its suburbs on Wednesday night, but none of the stolen jewels were recovered with them.
