Phillips to Auction Rare 18-Carat Burmese Ruby
The auction house said the gemstone could fetch up to $5.5 million at next month’s sale.

“Geneva Jewels Auction: Three” will take place in Geneva on Nov. 11.
The star of the sale is a Burmese ruby and diamond ring, pictured above, featuring a 17.97-carat ruby.
While rubies weighing more than 5 carats are extremely rare, the auction house said stones weighing 10 to 20 carats are “true natural wonders.”
Phillips said the gemstone has “exceptional clarity” for its size, as well as a vibrant unheated color and rich saturation.
Its pre-sale estimate is CHF 4.1 million to 4.8 million ($4.8 million to $5.5 million).
The sale also will feature colored diamonds, including a ring with a 3.24-carat, internally flawless fancy vivid blue diamond.

The diamond is classified as Type IIb, meaning it contains the trace element boron, which is responsible for the stone’s blue color.
Type IIb diamonds, which are also known to conduct electricity, are rare in nature, with the auction house estimating that less than one-half of 1 percent of diamonds fall into this category.
The ring is estimated to sell for CHF 4.1 million to 5.1 million ($4.8 million to $6 million).
Phillips will also offer a natural red diamond.
The 1.21-carat stone is named “The Red Miracle” and comes from a private collection.
It is estimated to fetch CHF 420,000 to 680,000 ($500,000 to $800,000).

Red diamonds weighing more than 1 carat are exceptionally rare, said the auction house.
At a Phillips auction earlier this year, another red diamond, the 1.56-carat “Argyle Phoenix” sold to Laurence Graff, founder of Graff Diamonds, for more than double its estimate, going for CHF 3.8 million ($4.2 million, or $2.7 million per carat).
It set two auction records for a fancy red diamond, one for price and one for price per carat.
Other notable natural colored diamond pieces set to appear at the sale are a 3.88-carat fancy dark gray-blue diamond ring (est. CHF 680,000 to 850,000 or $800,000 to $1 million) and a 40.54-carat old European-cut fancy intense yellow diamond (est. CHF 850,000 to 1.3 million or $980,000 to $1.5 million).
A 1.36-carat fancy intense blue diamond ring, estimated to sell for CHF 250,000 to 420,000 ($300,000 to $500,000), will be on offer as well.
Other colored gemstones that are part of the auction include an emerald and diamond ring featuring a 14.65-carat Colombian emerald set in a vintage Cartier mounting from the 1920s.
It is estimated to sell for CHF 750,000 to 1 million ($900,000 to $1.2 million).

An 8.03-carat unheated Kashmir sapphire and diamond ring in a “Trombino” design by Bulgari, as well as a pair of emerald and diamond earrings by Van Cleef & Arpels, are each estimated to sell for up to CHF 500,000 ($600,000).
A 20.49-carat, no-oil Colombian emerald ring also is on offer with an estimate of CHF 650,000 - 850,000 ($750,000 to $1 million).
Phillips’ upcoming jewelry auction also includes a selection of jewels with provenance.
A Cartier necklace once owned by French actress Marie Bell featuring citrine, turquoise, and diamonds and showcasing the “Grain de Café” motif, is estimated to achieve CHF 85,000 to 130,000 ($100,000 to $150,000).
A natural pearl and diamond necklace from a European noble family also is on offer, with an estimate of CHF 60,000 to 85,000 ($70,000 to $100,000).
A 19th-century gold, emerald, and diamond bracelet featuring an 11.39-carat emerald is estimated to sell for CHF 50,000 to 85,000 ($60,000 to $100,000).
Additionally, the auction house will offer a 19th-century spinel and diamond necklace King George IV is believed to have gifted to his mistress, Elizabeth Conyngham, Marchioness Conyngham.
Its estimate is CHF 13,000 to 22,000 ($15,000 to 25,000).
A Castellani micromosaic demi-parure from circa 1875 will be offered with an estimate of CHF 7,000 to 10,000 ($8,000 to $12,000). The piece was once part of the late Mrs. Harry Winston’s collection.
Also on offer is a 1930s coral and diamond bracelet (est. CHF 10,000 to 15,000 or $12,000 to $18,000) by Marsh & Co.
The bracelet is from the estate of Margaret Roebling Perrine, daughter of Ferdinand Roebling, general manager of Trenton, New Jersey-based John A. Roebling’s Sons Company, best known for its pivotal role in constructing the Brooklyn Bridge.
A selection of Art Deco jewels are included in the sale.
Highlighted lots include a circa 1926 diamond jabot pin, a circa 1924 diamond bracelet, a sapphire and diamond bracelet from 1927, and a pair of pearl and diamond brooches from 1930, all by Cartier.

The auction house also will offer classic designs from Van Cleef & Arpels, Cartier, Bulgari, and Buccellati, as well as a contemporary statement choker attributed to Marina B.

“On the heels of Phillips’ successful sale in Hong Kong, which achieved an outstanding 89 percent year-on-year increase, we are excited to unveil the highlights of ‘The Geneva Jewels Auction: Three,’” Phillips’ Worldwide Head of Jewellery Benoît Repellin said.
“Our Geneva auction offers a meticulously curated selection, reflective of the robust global demand for rare and captivating jewels. We look forward to presenting these exceptional pieces as we continue our international tour leading up to the Geneva auction in November.”
The pieces will be showcased globally prior to the auction, with viewings in Taipei, London, Paris, Singapore, and New York.
The auction preview will open Nov. 6 at Hotel President in Geneva, followed by the live sale on Nov. 11.
The Latest

Plus, parent company Saks Global announces plans to cut ties with up to 600 vendors.

Peter Smith joined Michelle Graff to chat about the state of brick-and-mortar stores and share a few book and podcast recommendations.

The necklace features a candy-colored Australian white opal in 18-karat Fairmined gold, as the brand was named a Fairmined ambassador.

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Sponsored by the Las Vegas Antique Jewelry and Watch Show


The designer has taken the appeal of freshly picked fruit and channeled it into a capsule collection of earrings, necklaces, and pendants.

The country’s gem and jewelry exports fell 5 percent year-over-year last month, while imports declined 18 percent.

Supplier Spotlight Sponsored by GIA

Around 54 million Americans and counting live with a disability. Here’s how to make your jewelry store and website more accessible.

The event is also accepting poster submissions now through June 16.

Before Pope Leo XIV was elected, a centuries-old procedure regarding the late pontiff’s ring was followed.

While the product has entrenched itself in the market, retailers and consultants are assessing the next phase of the category’s development.

The police are trying to identify the man suspected of robbing two Tiffany & Co. locations in the area.

The well-known Maine jeweler takes over for Brian Fleming and will serve a one-year term.

The donation was the result of the brand’s annual Earth Day Ingot event.

Located in NorthPark Center, the revamped store is nearly 2,000 square feet larger and includes the first Tudor boutique in Dallas.

The nonprofit has made updates to the content in its beginner and advanced jewelry sales courses.

BIJC President Malyia McNaughton will shift roles to lead the new foundation, and Elyssa Jenkins-Pérez will succeed her as president.

As a nod to the theme of JCK Las Vegas 2025, “Decades,” National Jeweler took a look back at the top 10 jewelry trends of the past 10 years.

The company plans to halt all consumer-facing activity this summer, while Lightbox factory operations will cease by the end of the year.

Following weekend negotiations, the tax on Chinese goods imported into the United States will drop by 115 percent for the next 90 days.

“Artists’ Jewelry: From Cubism to Pop, the Diane Venet Collection” is on view at the Norton Museum of Art through October.

The deadline to submit is June 16.

Moti Ferder stepped down Wednesday and will not receive any severance pay, parent company Compass Diversified said.

Lichtenberg partnered with luxury platform Mytheresa on two designs honoring the connection between mothers and daughters.

The miner announced plans to recommence open-pit mining at Kagem.

Michel Desalles allegedly murdered Omid Gholian inside World of Gold N Diamond using zip ties and then fled the country.