Set in a Tiffany & Co. necklace, it sold for $4.2 million, the highest price and price per carat paid for a Paraíba tourmaline at auction.
A primer on lead glass-filled rubies
With all the recent consumer press reports accusing major chains of selling lead glass-filled rubies without proper disclosure, Associate Editor Brecken Branstrator takes a look at the rules for selling these stones.
While the prevalence of lead glass-filled rubies in the market and the issue of non-disclosure to consumers is far from new to the industry, it has been given new life in the consumer press in recent months.
The creation of these stones involves taking very low-quality, industrial-grade ruby and infusing it with glass that has a high lead content. Some stones are more ruby than glass while other are more glass than ruby.
In either case, the amount of glass in these stones is significant and they must be handled carefully because the glass can be damaged by a variety of standard practices. These stones are very unstable under normal conditions of wear and tear and can be damaged even by common household cleaners.
Though selling these types of rubies is legal, the Federal Trade Commission’s guides for jewelry requires disclosure at the point of sale when it comes to the treatment and care needed. According to its Guides for the Jewelry, Precious Metals, and Pewter Industries, “it is unfair or deceptive to use the unqualified [word] ‘ruby’… to describe any product that is not in fact a natural stone of the type described.”
This photo provided by American Gemological Laboratories shows a composite ruby that has been damaged during jewelry repair, which happens due to the high content of lead-glass in these stones.
The lack of disclosing results in not only a loss of consumer confidence in regard to rubies but for all jewelry in general, as well as opens up the retailer to the possibility of legal action. This is why it’s more important than ever for retailers to be aware of what’s expected of them.“If it has lead glass in it, it has to be disclosed that it’s treated and requires special care,” Jewelers Vigilance Committee’s Cecilia Gardner told me.
She added that when it comes to the term “natural,” she has had many gemologists tell her that after examining these kinds of rubies, they have found that there is so little natural material that labeling it as such would be inappropriate.
The JVC, along with a number of other trade organizations, submitted a brief to the FTC suggesting a number of revisions to its Guides so that there can be a standard throughout the industry.
They have taken the stand that the following vocabulary be used:
--That “natural” be used to refer to untreated rubies;
--That “treated” be used to identify a ruby that has been treated in a traditional methods, such as heating to modify color or healing open fissures by adding chemicals, and to which no significant weight is added;
--And that “imitation,” “manufactured,” “composite,” or “simulated” be used to describe the rubies that are low-grade, non-gem corundum and are infused or combined with lead glass to produce a stone that appears to be of higher quality, to which significant weight has been added.
When it comes down to it, the best way to avoid any issues is to be vigilant. Press suppliers for full disclosure, and provide the same for your customers to ensure their continued trust about the business in the future and to avoid legal action, from them or the government.
The Latest

The jeweler’s “Deep Freeze” display showcases its iconic jewelry designs frozen in a vintage icebox.

Take luxury gifting to new heights this holiday season with the jeweler’s showstopping 12-carat sphene ring.

How Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.

This year's theme is “Unveiling the Depths of the Ocean.”


In its annual report, Pinterest noted an increase in searches for brooches, heirloom jewelry, and ‘80s luxury.

Starting Jan. 1, customers can request the service for opal, peridot, and demantoid garnet.

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

The 111-year-old retailer celebrated the opening of its new location in Salem, New Hampshire, which is its third store in the state.

The new catalog features its most popular chains as well as new styles.

The filmmaker’s personal F.P. Journe “FFC” prototype was the star of Phillips’ recent record-setting watch auction in New York.

The new location in the Design District pays homage to Miami’s Art Deco heritage and its connection to the ocean.

Inflations, tariffs, and politics—including the government shutdown—were among consumers’ top concerns last month.

“Longtime favorite” presenters, as well as first-time speakers, will lead talks and workshops at the annual event in Tucson next year.

Silas Smith of Meridian Metalworks won the challenge with his pendant that blends Australian and American landscapes.

The sale of the 31.68-carat, sunset-hued stone was part of Sotheby’s first series of events and auctions in Abu Dhabi.

Most customers who walk into your store this month have made up their minds. Your job is to validate their choice, Emmanuel Raheb writes.

The collection features characters and motifs from Ukrainian folklore, including an enchanted mirror and a magic egg.

MatrixGold 3.11, the newest version of the jewelry design program, offers more flexibility, precision, and creative control.

The pavilion will be part of the 2026 JA New York Spring show, scheduled for March 15 to 17.

Kadet, a 1994 National Jeweler Retailer Hall of Fame inductee, helped grow the family-owned retailer in the Chicago area and beyond.

Billed as the world’s smallest wearable, Lumia Health’s new smart earrings have a health tracker subtly embedded in the back.

Don’t let those with December birthdays feel blue. Help them celebrate their month with blue zircon, turquoise, and tanzanite.

The new pink sapphire version of the piece dances with its wearer in the brand’s “Icons After Dark” holiday campaign.

A choice that’s generated a lot of commentary, Pantone says “Cloud Dancer” marks a fresh start and encourages relaxation and creativity.

The manufacturer’s holiday campaign features a gift guide filled with trending designs and jewelry that can be personalized.

The man was charged with theft, accused of ingesting the necklace while in a jewelry store in Auckland, New Zealand.
























