Sourcing

De Beers Experiments with Selling Polished Diamonds

SourcingMay 19, 2017

De Beers Experiments with Selling Polished Diamonds

The diamonds will be cut from rough from the company’s mines and sold via De Beers Auction Sales.

2016-De-Beers-cutting.jpg
De Beers is piloting a program to have its rough diamonds cut and polished and then sell them via auction. The first sale of De Beers’ polished diamonds is scheduled to take place in June.

London--De Beers announced Thursday that it’s testing a program in which it will sell polished diamonds created from its own rough via auction.

Normally, the diamond miner and marketer sells rough diamonds only to sightholders and other diamond manufacturers that, in turn, cut and polish them.

But this June, De Beers is trying out a program where it will have a third-party independent contractor carry out cutting and polishing on its behalf (the company said it already does this sometimes to better understand if its rough is producing the kind of polished diamonds that clients need), and then put those polished diamonds up for offer at an auction scheduled for June 29.

The diamonds will have grading reports from both the Gemological Institute of America and the International Institute of Diamond Grading & Research (IIDGR), the lab that is owned by De Beers.

David Johnson, a De Beers spokesperson, told National Jeweler via email that the company is not disclosing how much volume in carat terms will be offered. It also is not elaborating on the quality of the polished diamonds that are being auctioned, saying only that “it will be a wide range as it reflects the full range of polished from our rough products,” he said.

All registered buyers of De Beers Auction Sales will be able to bid in the auction for the polished diamonds cut from the company’s rough. It is scheduled to take place June 29.

Neil Ventura, executive vice president of auction sales for the De Beers Group, said in a news release the company wants to test the level of demand for diamonds with a “clear and attractive source of origin” and with dual grading reports.

Ventura added that the auction also would generate an additional polished price reference for diamonds in U.S. dollars per carat--meaning a reference other than RapNet, the list currently maintained by Martin Rapaport and his Rapaport Group.

For information on how to register as a buyer for De Beers auctions, visit DeBeersGroup.com/auctionsales.

Johnson said more auctions of De Beers’ polished diamonds are scheduled beyond June 29. Details on those sales will be shared at a later date.

De Beers’ announcement that is piloting a polished sales program is the latest in a series of interesting initiatives from a company that had the same sales structure for decades.

Back in November, De Beers launched a pilot program that allows

other companies to sell diamonds on its auction platform. Johnson said that program is ongoing but remains in the pilot stage.
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

trend retail.jpg
PodcastsJan 12, 2026
The latest poscast

test

Screenshot from 2026-01-12 06-22-03.png
PodcastsJan 12, 2026
New podcast without sponsor

test

20210205_Alexia_Connellan_Gatsby_earrings.jpg
TrendsJan 12, 2026
New test Article

test article

trend ss21@2x.jpg
Brought to you by
new sponsored article

test

2019_De_Beers_rough_NEW_1.jpg
PodcastsJan 12, 2026
New sponsored podcast

test

Weekly QuizOct 03, 2024
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
MNQ FINAL - NJ web - 1872 x 1052 px.png
PodcastsJan 12, 2026
Introducing My Next Question, the Podcast

A monthly podcast series for jewelry professionals

Screenshot from 2025-12-31 12-03-28.png
PodcastsDec 31, 2025
Test new podcast post

Test new podcast post

Jewelers Mutual Group Cybersecurity
Brought to you by
Navigating Cybersecurity: Essential Guidance for Jewelers

From protecting customer data to safeguarding inventory records, it's crucial to learn how to tackle cybersecurity challenges.

MNQ - studio - screen -1920 x 1080.png
PodcastsDec 29, 2025
Molly Test Podcast Episode

This is the abstract for Molly Test Podcast Episode

image 169 (4 col).png
PodcastsDec 10, 2025
Podcast With Video

Podcast Without Video or Audio or Image

image 169 (4 col).jpg
Recorded WebinarsDec 04, 2025
New Recorded Webinar for tests

New Recorded Webinar for tests

User-Avatar-PNG-Picture.png
PodcastsDec 03, 2025
Test Article Title

test Abstract

20210204_Couture_show_shot.jpg
PodcastsDec 02, 2025
New podcast

test desc

Screenshot from 2025-12-05 13-54-41.png
PodcastsNov 27, 2025
Test Podcast With Video

Test Podcast With Video. New interview with Ada Lovelace.

Image for tests
PodcastsNov 25, 2025
Test New Podcast Post

Abstract for tests. New Podcast interview with John Lennon, Jimi Hendrix and Jim Morison.

National Jeweler columnist Peter Smith
ColumnistsOct 09, 2024
Peter Smith: 7 Things to Know When Selling Luxury

Ahead of the holiday season, Smith delves into the often subconscious reasons people buy luxury products for themselves or their loved ones.

Edgar Mitchell wearing Rolex watch on Apollo 14
AuctionsOct 09, 2024
Rolex Worn on Apollo 14 Mission Up for Sale

The GMT-Master “Pepsi” belonging to astronaut Edgar Mitchell is a standout in RR Auction’s online “Space Auction,” going on now.

Simon meet me at the mall campaign
MajorsOct 09, 2024
New Simon Campaign Invites Gen Z to ‘Meet Me At The Mall’

The ads celebrate the mall culture of the ‘80s and ‘90s.

Platinum Guild International training
MajorsOct 09, 2024
PGI Launches New Virtual Sales Training

Retail sales associates can access the video series on mobile to refresh their selling skills.

Gathering at Bharat Diamond Bourse for COVID vaccinations
Policies & IssuesOct 09, 2024
GJNRF: Reaching Out, Rebuilding Futures

For 25 years, India’s Gem & Jewellery National Relief Foundation has provided aid in the wake of war, natural disasters, and global crises.

Sotheby’s A Tsar’s Treasure: Ferdinand of Bulgaria
AuctionsOct 08, 2024
Sotheby’s Selling Jewelry That Belonged to a Bulgarian Tsar

The November auction will feature a collection of jewels owned by Ferdinand I, the first king of modern Bulgaria, and his family.

Stock image of hand holding phone by keyboard
SurveysOct 08, 2024
What to Know About Online Shopping This Holiday Season

Deloitte and Adobe Analytics shared their insights on the season, from the retail sales forecast to the role of generative AI.

Sylvie and Uncommon Man Campaign
CollectionsOct 08, 2024
Sylvie Adds New Men’s Bands

The Texas-based jeweler collaborated with luxury clothing brand Uncommon Man on men’s bands designed with European influences.

Rio Tinto 2024 Beyond RareTM Tender Art Series
SourcingOct 07, 2024
Rio Tinto to Offer 76 Diamonds in 2024 Beyond Rare Tender

The sales event, in its second year, features a selection of rare diamonds from the miner’s Argyle and Diavik diamond mines.

Kristi Yamaguchi and Scott Heller
CollectionsOct 07, 2024
Olympian Kristi Yamaguchi Partners With Heller Jewelers on New Collection

A portion of the proceeds from the “Always Dream” collection will go to Yamaguchi's foundation, supporting early childhood literacy.

Hill & Co. logo
SurveysOct 07, 2024
Hill & Co.’s New ‘Business of Jewelry Report’ Is Out

The first in what is slated to be a series of in-depth reports from the consulting company, it focuses on shortening supply chains.

Benjamin Clymer and the Porsche Design x Hodinkee limited-edition watch
WatchesOct 04, 2024
Watches of Switzerland Clocks Another Acquisition—Hodinkee

The company said Benjamin Clymer will return to his role as head of the watch news website, which will maintain editorial independence.

×

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