TrendsFeb 11, 2026
Halle Berry’s Retro Engagement Ring Is a Sapphire-Set StunnerSourced by For Future Reference Vintage, the yellow gold ring has a round center stone surrounded by step-cut sapphires.
MajorsJan 04, 2019
Roberto Coin Sues Dealer After Retailers Pull Jade Line
The popular Italian brand is at odds with former partner Kings Stone over certification of the brand’s black jade jewelry.
Roberto Coin has filed a lawsuit against New York-based stone dealer Kings Stone regarding the latter’s claims the jeweler misrepresented certification of the black jade used in its designs. Pictured here is a cuff and huggie hoop earrings featuring black jade and diamonds in 18-karat rose gold, introduced by Roberto at the January 2018 Vicenzaoro show.
New York—Roberto Coin Inc. and Kings Stone are embroiled in a lawsuit amid allegations that the former misrepresented certification of the stones in its black jade jewelry line.
According to court documents, Roberto Coin and Kings Stone started discussions about the latter providing black jade to the jeweler in 2012, and Roberto Coin began placing significant orders shortly thereafter.
As Kings Stone began supplying black jade to Roberto Coin, it also provided certifications from China’s National Gemstone Testing Center stating the stones were amphibole jade.
Kings Stone owner Joseph Goldstein claims the company continues to be the only supplier of NGTC-certified black amphibole in the world.
In mid-2014, Roberto Coin terminated the partnership and started using a new supplier of black jade for its designs.
Goldstein said he discovered in early 2018 that Roberto Coin was still marketing the black jade line as “black amphibole jade certified by the NGTC,” despite the termination of their partnership.
He then approached multiple retailers that carry the line, asking them to verify the NGTC certification of the material, which, Goldstein claims, they could not.
Shortly after, a few major retailers, including Borsheims and Bloomingdale’s, pulled the black jade jewelry line from their showcases.
Borsheims and Macy’s Inc., which owns Bloomingdale’s, both told National Jeweler they don’t comment on pending litigation.
Following the retailers’ decision to pull the line, Roberto Coin filed a complaint against Kings Stone and Goldstein in July 2018 in the U.S. District Court for the Eastern District of New York, alleging false advertising and deceptive business practices in violation of federal and state law.
According to the complaint, Goldstein told Roberto Coin that he intended to file a consumer class action again the company for selling jewelry containing “non-authentic” black jade.
It also alleges he made “false and misleading statements” that the black jade in its jewelry was “non-authenticated” and threatened the brand’s retail customers with consumer class action if they continued to carry the line.
Roberto Coin said in its complaint that it has reports from several gemological labs certifying the black jade used in its jewelry.
When it switched suppliers in 2014, the company claims the new supplier, CaterG, provided them with an analysis from Hong Kong Gems Laboratory calling the material “natural amphibole material,” as well as additional lab analyses certifying that the material was “amphibole jade” or “black nephrite jade” (nephrite is part of the amphibole mineral group).
Editors' Picks
Sponsored by
The new supplier also sent a sample of its black jade to NGTC in April 2018, after Goldstein started approaching the retailers, and the lab confirmed that the stones are amphibole jade, the brand said in its lawsuit.
“RCI always has conducted its business in accordance with the highest standards. It strongly disputes the claims by Joseph Goldstein and Kings Stone,” attorney Gayle Pollack of Morrison Cohen said in a statement provided to National Jeweler.
“In fact, RCI filed a lawsuit against them to stop them from continuing their false advertising campaign. Rather than try this case in the media, RCI looks forward to being vindicated in court.”
Goldstein filed a counterclaim in August 2018, alleging the jewelry brand has engaged in fraud regarding the marketing and sales of its black jade jewelry.
The claim states that Kings Stone is the only supplier of NGTC-certified black amphibole jade and that Roberto Coin misrepresented the black jade it sold.
Goldstein also claims the NGTC has confirmed that no other suppliers have received certification for black amphibole jade prior to April 2018, when CaterG sent its material to the lab to be certified black amphibole jade, meaning any use of vocabluary around NGTC certification by Roberto Coin between the time the company terminated its relationship with Kings Stone and April 2018 would have been unlawful.
The counterclaim also notes that when Goldstein asked the retailers to provide proof of NGTC certification, they could not, instead sending a pamphlet from Roberto Coin describing the certification.
The NGTC did not respond to an email asking for clarification about the certification by press time.
Goldstein gave the following statement to National Jeweler: “In all of the legal paperwork filed, not once did Roberto Coin refute the fact that they had used the NGTC for four years straight for their black jade without it actually being certified by the NGTC.
“Roberto Coin could easily settle this allegation very simply—by just producing the NGTC certs used for four years on his black jade and the lawsuit would disappear. Instead, they continue to avoid the fraud issue itself and claim that they are above reproach due to their stellar reputation. No one is above the law—not even Roberto Coin.”
Kings Stone is seeking a permanent injunction prohibiting Roberto Coin from marketing its black jade jewelry with “false representations” that it has obtained certificates from the NGTC, “unless and until (it) has obtained NGTC certifications.”
In addition to monetary damages, Roberto Coin is seeking a permanent injunction preventing Goldstein and his company from “attacking the ‘authenticity’ of the jade” in its jewelry, and wants him to be required to provide “corrective” advertising to each of its retail customers he has contacted.
“RCI always has conducted its business in accordance with the highest standards. It strongly disputes the claims by Joseph Goldstein and Kings Stone,” attorney Gayle Pollack of Morrison Cohen said in a statement provided to National Jeweler.
“In fact, RCI filed a lawsuit against them to stop them from continuing their false advertising campaign. Rather than try this case in the media, RCI looks forward to being vindicated in court.”
Goldstein filed a counterclaim in August 2018, alleging the jewelry brand has engaged in fraud regarding the marketing and sales of its black jade jewelry.
The claim states that Kings Stone is the only supplier of NGTC-certified black amphibole jade and that Roberto Coin misrepresented the black jade it sold.
Goldstein also claims the NGTC has confirmed that no other suppliers have received certification for black amphibole jade prior to April 2018, when CaterG sent its material to the lab to be certified black amphibole jade, meaning any use of vocabluary around NGTC certification by Roberto Coin between the time the company terminated its relationship with Kings Stone and April 2018 would have been unlawful.
The counterclaim also notes that when Goldstein asked the retailers to provide proof of NGTC certification, they could not, instead sending a pamphlet from Roberto Coin describing the certification.
The NGTC did not respond to an email asking for clarification about the certification by press time.
Goldstein gave the following statement to National Jeweler: “In all of the legal paperwork filed, not once did Roberto Coin refute the fact that they had used the NGTC for four years straight for their black jade without it actually being certified by the NGTC.
“Roberto Coin could easily settle this allegation very simply—by just producing the NGTC certs used for four years on his black jade and the lawsuit would disappear. Instead, they continue to avoid the fraud issue itself and claim that they are above reproach due to their stellar reputation. No one is above the law—not even Roberto Coin.”
Kings Stone is seeking a permanent injunction prohibiting Roberto Coin from marketing its black jade jewelry with “false representations” that it has obtained certificates from the NGTC, “unless and until (it) has obtained NGTC certifications.”
In addition to monetary damages, Roberto Coin is seeking a permanent injunction preventing Goldstein and his company from “attacking the ‘authenticity’ of the jade” in its jewelry, and wants him to be required to provide “corrective” advertising to each of its retail customers he has contacted.
More on Majors
The Latest
CollectionsFeb 11, 2026
Zales Turns Sweethearts Into Jewelry for Valentine’s Day CollectionThe “Zales x Sweethearts” collection features three mystery heart charms engraved with classic sayings seen on the Valentine’s Day candies.
TechnologyFeb 11, 2026
Gemvision Symposium 2026 Slated for AprilThe event will include panel discussions, hands-on demonstrations of new digital manufacturing tools, and a jewelry design contest.
Brought to you by
The MJSA Mentor & Apprenticeship Program: Attracting & Training the Next Generation of Bench JewelersLaunched in 2023, the program will help the passing of knowledge between generations and alleviate the shortage of bench jewelers.
Events & AwardsFeb 11, 2026
TJS Announces Roundtable, Launches New AppRegistration is now open for The Jewelry Symposium, set to take place in Detroit from May 16-19.
Weekly QuizFeb 05, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
SourcingFeb 10, 2026
At Meeting in South Africa, Support for Natural Diamonds Picks Up Steam Namibia has formally signed the Luanda Accord, while two key industry organizations pledged to join the Natural Diamond Council.
TrendsFeb 10, 2026
Bad Bunny Wears Football-Shaped ‘Desert Diamond’ for Halftime PerformanceLady Gaga, Cardi B, and Karol G also went with diamond jewelry for Bad Bunny’s Super Bowl halftime show honoring Puerto Rico.
Brought to you by
How Jewelers Can Fight Back Against Cell JammersCriminals are using cell jammers to disable alarms, but new technology like JamAlert™ can stop them.
SurveysFeb 10, 2026
Shoppers to Spend Big on Jewelry This Valentine’s Day, Says NRFJewelry is expected to be the No. 1 gift this year in terms of dollars spent.
FinancialsFeb 10, 2026
Kering Plans Transformation as 2025 Sales Sink 13%As star brand Gucci continues to struggle, the luxury titan plans to announce a new roadmap to return to growth.
SourcingFeb 10, 2026
AGTA To Debut ‘Stuller Color of the Year’ Spectrum Awards CategoryThe new category asks entrants for “exceptional” interpretations of the supplier’s 2026 color of the year, which is “Signature Red.”
Policies & IssuesFeb 09, 2026
U.S., India Trade Deal One Step Closer to Being FinalizedThe White House issued an official statement on the deal, which will eliminate tariffs on loose natural diamonds and gemstones from India.
Events & AwardsFeb 09, 2026
JA Now Accepting Entries for 2026 CASE AwardsEntries for the jewelry design competition will be accepted through March 20.
IndependentsFeb 09, 2026
James Free Jewelers Unveils Revamped FlagshipThe Ohio jeweler’s new layout features a curated collection of brand boutiques to promote storytelling and host in-store events.
TrendsFeb 09, 2026
These 14 Jewels Will Melt Your Heart This Valentine’s DayFrom heart motifs to pink pearls, Valentine’s Day is filled with jewelry imbued with love.
CrimeFeb 06, 2026
Florida Man Sentenced After Selling Fake Native American Jewelry for a Decade Prosecutors say the man attended arts and craft fairs claiming he was a third-generation jeweler who was a member of the Pueblo tribe.
FinancialsFeb 06, 2026
Pandora’s North America GM Departs Amid Executive ChangesNew CEO Berta de Pablos-Barbier shared her priorities for the Danish jewelry company this year as part of its fourth-quarter results.
TrendsFeb 06, 2026
Margot Robbie, Jacob Elordi Wear Matching Cece Jewellery Signet RingsOur Piece of the Week picks are these bespoke rings the “Wuthering Heights” stars have been spotted wearing during the film’s press tour.
SourcingFeb 05, 2026
De Beers Lowers Production Guidance for 2026, Anglo Mulls Another WritedownIt would be the third impairment charge in three years on De Beers Group, which continues to grapple with a “challenging” diamond market.
IndependentsFeb 05, 2026
Borsheims to Undergo Massive Renovation in the Spring The Omaha jewelry store’s multi-million-dollar renovation is scheduled to begin in mid-May and take about six months.
CollectionsFeb 05, 2026
Marco Bicego’s Amethyst Collection Travels to a Purple ParadiseThe “Paradise Amethyst” collection focuses on amethyst, pink tourmaline, garnet, and 18-karat yellow gold beads.
FinancialsFeb 05, 2026
Watches of Switzerland Reports Strong Holiday Results in Q3The retailer credited its Roberto Coin campaign, in part, for boosting its North America sales.
ColumnistsFeb 04, 2026
January Jewelry Sales: More Dollars Spent, Fewer Units Sold Sherry Smith unpacks independent retailers’ January performance and gives tips for navigating the slow-growth year ahead.
MajorsFeb 04, 2026
What Designers Should Know About Saks Global’s BankruptcyFrom how to get an invoice paid to getting merchandise returned, JVC’s Sara Yood answers some complex questions.
TrendsFeb 04, 2026
Amanda’s Style File: February Birthstone BlissAmethyst, the birthstone for February, is a gemstone to watch this year with its rich purple hue and affordable price point.
MajorsFeb 04, 2026
Marco Bicego Names New Global Marketing DirectorThe Italian jewelry company appointed Matteo Cuelli to the newly created role.
MajorsFeb 04, 2026
Frederick Goldman Updates Leadership TeamThe manufacturer said the changes are designed to improve speed, reliability, innovation, and service.
