It is the last fully operational diamond mine in Canada following the recent closures of Ekati and Diavik.
Bonhams Auctioning Gerd Dreher Gemstone Carvings
Works of the fourth-generation animal figure carver, including a gem silica chrysocolla and malachite carving of seahorses, will lead the auction house’s Los Angeles sale this month.

Los Angeles--Buyers will get a rare chance to own pieces from master gemstone carver Gerd Dreher this month.
The carvings will be featured as part of the Lapidary Works of Art, Gemstones, Minerals and Natural History auction scheduled to take place at Bonhams Los Angeles on May 17.
Dreher’s carvings are among the most sought-after in the lapidary world, Bonhams said, as he creates fewer than 10 carvings per year.
A gem silica chrysocolla carving of seahorses could sell for between $25,000 and $30,000. In addition to the green malachite and milky quartz that are exposed on the reverse side of the carved seahorses, the dorsal fins of the animals are set with 18-karat gold and small cabochon sapphires for the eyes.
Another Dreher piece featured in the sale is a four-color tourmaline carving of a tropical fish on a rock crystal quartz base. The fish measures eight inches across (roughly the size of a small dinner plate), Bonhams said, and has 18-karat gold fins.
It can be removed from the rock crystal quartz backdrop, which is of near-optical quality and reverse intaglio carved to depict a coral.
In addition to Dreher’s works, there will be a number of other significant gems and mineral in the sale.
The top lot of the auction is expected to be an exceptional pair of large non-nacreous orange pearls from the South China Seas. Weighing approximately 30.75 carats (16.01 by 15.96 mm) and 29.85 carats (15.82 by 15.62 mm), they could garner as much as $130,000.
There also will be a large rubellite tourmaline from Mozambique weighing 116.83 carats that is expected to sell for between $100,000 and $120,000.
Click through the slideshow to see the two Dreher pieces as well as some of the top overall lots of the sale.
The Latest

The fine jewelry brand has expanded the collection that debuted at Couture with four new designs based on its most popular styles.

The AGTA president was elected for a two-year term on the board of directors.

Experience gemstones with greater precision and comfort than ever before.

The partnership, a pledge to protect Africa’s Okavango River Basin, has been extended for an additional five years.


The new facility, its first outside of Thailand, will boost its manufacturing capacity by 50 percent.

The special-edition “Dream” pendant, our Piece of the Week, was created to mark Hearts On Fire’s 30-year milestone with 30 diamonds.

Submit your pieces for a chance to win in this year's competition.

Dubai Jewelers in Springfield, Virginia, was once again the target of an armed robbery.

YouGov’s 2026 U.S. Most Recommended Brands report’s out, and a fast-fashion giant is sitting at No. 1 while Rolex is just shy of the top 5.

Proceeds from its jewelry raffle will benefit an organization working in India to combat silicosis, a lung disease affecting stone cutters.

The rings, crafted by Jason of Beverly Hills, celebrate the hockey team’s Stanley Cup win with design elements that honor its traditions.

This roundup of birthstone jewelry for October features vibrant tourmalines and opals with personality.

President Duma Boko spoke at back-to-back events in the city last week, touting Botswana’s stability and the diamond “bounceback.”

The catalog showcases 112 new, one-of-a-kind pieces amid highlights from the jeweler’s historic archive.

Its Montepuez Ruby Mining operation in Mozambique, which is not yielding enough high-quality rubies, has taken a $125 million hit.

Those surveyed were worried about the present and the future, with write-in responses mentioning high oil and gas prices.

The event will take place on the evening of Oct. 26 in New York City.

She is remembered for her joie de vivre, upbeat personality, genuine interest in other people, and love of the Alabama Crimson Tide.

The founder and executive chairman of Stuller Inc. is being honored for his impact on the jewelry industry at the 25th annual Gem Awards.

December is the most popular month to propose, and jewelers need to keep that in mind when planning their holiday marketing.

Cat ladies of the jewelry world, unite. Sandy Lerner’s collection of cat jewelry and other objects is going up for auction Wednesday.

“Vibrations” features several firsts for De Beers’ high jewelry, including the use of chalcedony and diamonds sourced from artisanal miners.

The “Bows” collection features three interpretations of the bow motif designed with Georgian and Victorian influences.

The American Gem Society recognized industry members, one Guild, and a law enforcement official for their contributions to jewelry.

Through a new system integration, customers can now receive instant personal jewelry insurance quotes at the time of appraisal.

Five of the 10 fastest-appreciating Rolex models on Bob’s Watches were Datejust 31 or Lady Datejust watches.
























