Sourcing

177-Carat Diamond Among the ‘Stars of the Arctic’

SourcingOct 09, 2018

177-Carat Diamond Among the ‘Stars of the Arctic’

It is one of three sizable rough diamonds from the Diavik Diamond Mine in Canada headlining Rio Tinto’s current tender of rough 10.8 carats or larger.

20181008_Diavik-header.jpg
The three diamonds dubbed the “Diavik Stars of the Arctic” are, from left to right, the 177.71-carat “Vega,” the 24.82-carat “Capella” and the 59.10-carat “Altair.” Rio Tinto is offering the diamonds via tender, with bids closing later this month.

London—The Diavik Diamond Mine in Canada has yielded three sizable rough diamonds—including one very rare yellow—and Rio Tinto will try to sell them this month.  

Ranging in size from 24 to nearly 178 carats, the stones are headlining Rio Tinto’s current “Specials” tender, a sale of rough diamonds that are 10.8 carats or larger.

Known collectively as the “Stars of the Arctic,” the biggest of the three is “Vega of the Arctic,” a 177.71-carat rough diamond that Rio Tinto said is one of the largest and most valuable gem-quality diamonds to ever come out of Canada. (The biggest diamond ever mined in Canada weighed 187.7 carats and also came from Diavik.)

RELATED CONTENT: The Biggest Diamond in Washington
The “Capella” is a 24.82-carat yellow diamond. Rio Tinto said the discovery of a yellow diamond of this size is “very rare;” the mine only produces about five per year on average, making it less than 0.001 percent of Diavik’s annual production.

The last diamond, the “Altair of the Arctic,” is a 59.10-carat white gem-quality rough.


Rio Tinto is currently showcasing the stones to large diamond specialists in Israel and Antwerp. Bids will close on Oct. 25.

The Diavik Diamond Mine is a joint venture between Rio Tinto (60 percent ownership) and Dominion Diamond Mines (40 percent ownership). Production at the mine started in 2003, went underground in 2012 and is expected to extend through 2025.

This summer, mine operators opened a fourth pipe at Diavik, the A21. The $350 million addition is anticipated to be a key source of incremental supply for the next four years.


Also this month for Rio Tinto, bids are closing on the2018 tender of red, violet and pink diamonds mined at Argyle in Western Australia, which the company brought to New York last week and includes the 2.28-carat fancy purplish-red “Argyle Muse,” pictured above.
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

1872-x-1052-July-ad (2).png
Supplier BulletinAug 07, 2026
Why More Jewelry Retailers Are Hosting Turnkey Estate Buying Events

Sponsored by Stratus Estate Buyers

Blue Nile President Pamela Cloud
MajorsAug 07, 2026
Retail Veteran Pam Cloud Appointed President of Blue Nile

Cloud, who will officially join Blue Nile on Monday, spent 26 years at Tiffany & Co. and founded jewelry brand Roseate.

Paulo Garcia
MajorsAug 07, 2026
Pandora Appoints Paulo Garcia as New CFO

Garcia will take over from the company’s current CFO, Anders Boyer, who is retiring at the end of November.

1872-x-1052-July-ad (1).png
Brought to you by
Why More Jewelry Retailers Are Hosting Turnkey Estate Buying Events

Retailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.

Etsy office Dumbo Brooklyn
MajorsAug 07, 2026
Etsy to Lay Off 12% of Workforce

Etsy CEO Kruti Patel Goyal explained why the company is letting go more than 200 employees as its performance improves.

Weekly QuizAug 07, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Syna Star Gazer Pendant
TrendsAug 07, 2026
Look Ahead with Syna’s Binoculars Pendant

The “Star Gazer” pendant, our Piece of the Week, is Syna’s tribute to curiosity and the discovery of something new.

An interior shot of the Musee Lalique in Wingen-sur-Moder, France
CrimeAug 06, 2026
Lalique Museum to Remain Closed Following $5M Heist

Museum officials are looking to the public to help cover the “exceptional” costs involved in recovering from the July 5 smash-and-grab.

Brought-To-By-Article-Top-Image.jpg
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center Stage

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

Claire’s new piercing experience
MajorsAug 06, 2026
Claire’s Revamps Piercing Services for Second Time in Three Years

The overhaul includes enhanced employee safety training and trendy earring styles, including lab-grown diamond studs.

Brilliant Earth Jane Goodall collection rings
FinancialsAug 06, 2026
Brilliant Earth’s Q2 Sales Up 6%, Driven by High-Income Shoppers

The retailer said it had its biggest Mother’s Day ever, with strong demand for higher-priced jewelry.

Handwork: Handcrafted Objects that Made America Book Cover
TrendsAug 06, 2026
New Book on Handcrafted American Objects Highlights Jewelry

“Handwork: Handcrafted Objects that Made America” features historic and contemporary works, including a Diné squash blossom necklace.

Ani Khachian
MajorsAug 06, 2026
AJA East Coast Names Ani Khachian as First Female President-Elect

The Armenian Jewelers Association’s East Coast chapter has also elected its 2026–2027 board of directors.

JCPenney storefront
MajorsAug 05, 2026
Private Equity Firm Wants to Buy 100+ JCPenney Stores

Onyx Partners has submitted a second offer to buy the department stores after its first offer fell through last year.

The Roaring Jewel Martini
IndependentsAug 05, 2026
Atlanta Jeweler Introduces $10K Martini

Solomon Brothers Jewelers has partnered with local cocktail bar Roaring Social on a new martini garnished with a tennis necklace.

Benjamin Siegel of Hamilton Jewelers
IndependentsAug 05, 2026
Another Member of the Siegel Family Joins Hamilton Jewelers

Benjamin Siegel, son of President and CEO Hank Siegel, started working for the family business this week.

Bulgari San Diego Store Exterior
MajorsAug 05, 2026
Bulgari Opens Store in San Diego

The new space features a modern design that blends Bulgari’s Roman heritage with San Diego’s coastal spirit.

Mugshots of four men
CrimeAug 04, 2026
Crew of Thieves Break Into Indiana Jeweler’s Home

Four men were charged in connection with the break-in and accused of stealing $365,000 in cash, jewelry, and designer goods.

André Branch
MajorsAug 04, 2026
Pandora Hires Former Signet Board Member to Lead North American Market

André Branch has more than 25 years of experience with various brands, most recently serving as CEO of Ariana Grande’s cosmetics company.

Gemlok earrings
MajorsAug 04, 2026
Sasha Primak Acquires Gemlok

New York-based atelier Gemlok is best known for creating the innovative “bridge” setting that became popular in the bridal market.

Santana Now Unidad Collection Campaign Imagery
CollectionsAug 04, 2026
Musician Carlos Santana Launches Jewelry Brand

Santana Now's debut collection, “Unidad,” features symbolic motifs as well as pieces of wood from the Woodstock stage.

Stock image of a gavel and books
CrimeAug 03, 2026
Florida Man Gets 15 Years in Trio of Jewelry Store Robberies

The 50-year-old man pleaded guilty earlier this year to robbing two jewelry stores and a pawn shop of more than $700,000 in merchandise.

Spider-Man Citizen watch and pin on a web
WatchesAug 03, 2026
Citizen's New Spider-Man Watch Is a Collector’s Dream

The watch’s dial features an original design by Marvel comics illustrator Adam Kubert.

Chatham Men’s Collection Campaign Imagery
Lab-GrownAug 03, 2026
Chatham Releases First Men’s Collection

The new collection of lab-grown diamond and colored gemstone jewelry provides a “fresh perspective” on the category, Chatham said.

Pomellato Marvelous Griffe earrings
TrendsAug 03, 2026
Amanda’s Style File: Spinel vs. Peridot

While some August babies are team peridot, the month's time-honored birthstone, others are team spinel, the newer alternative.

Edina Kiss Popsicle Pendant and Karina Choudhrie Ice Cream Charm
TrendsJul 31, 2026
These Pieces of the Week Are Sweet

Edina Kiss’ “Popsicle” pendant and Karina Choudhrie’s “Ice Cream” charm satisfy that summer craving for a sweet piece of jewelry.

Macy’s Herald Square store sign
MajorsJul 31, 2026
Macy’s Iconic Red Shopping Bag Sign Torn Down

The massive billboard has been in the same spot on the department store’s Herald Square flagship store for decades.

U.S. Trade Representative Jamieson Greer and Jewelers of America President and CEO David Bonaparte in Washington, D.C.
Policies & IssuesJul 30, 2026
JA Heads Back to Washington as New Wave of Tariffs Takes Effect

David Bonaparte, along with Tim Haake and Ronnie VanderLinden, continue to lobby for tariff exemptions for diamonds, gemstones, and pearls.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy