Sourcing

Blue Nile Gets Into Diamond Buybacks

SourcingJan 23, 2017

Blue Nile Gets Into Diamond Buybacks

The e-tailer is officially partnering with a company called Mondiamo after testing the service on its own website for seven months.

20170123_Mondiamo-screen-shot.jpg
A screen shot from the homepage of Mondiamo.com, a new website powered by Blue Nile that buys diamonds from the public

Seattle--Blue Nile announced that after seven months of testing, it is launching a diamond buyback program in partnership with a company called Mondiamo.com.

Based in New York, Mondiamo is owned by Adama Partners Inc., a venture firm that invests in, operates and builds businesses in the jewelry and gemstone markets. The company is the strategic advisor to The Fancy Color Research Foundation, which provides, among other services, a price index for fancy colored diamonds.

In a phone interview with National Jeweler Friday, Adama co-founder and Senior Vice President Oren Schneider said they have spent the last few years building a consumer-facing, online-only service for buying diamond jewelry that includes a proprietary algorithm for evaluating current market prices for diamonds. They started a “very low-key” beta test of the service on BlueNile.com in June 2016, he said.

Now, Mondiamo has launched its own website, which is powered by Blue Nile and uses the e-tailer’s live pricing data for Gemological Institute of America-graded diamonds to give consumers a guaranteed cash offer range for their diamond jewelry, sight unseen.

Consumers come to the website either through Blue Nile or on their own and input their GIA report number and the diamond’s carat weight. For non-GIA reports, they enter the name of the grading lab and report number along with the four Cs, with the price being adjusted based on a proprietary algorithm. (Offer ranges are not provided online for diamonds without grading reports, but those stones can be sent to Mondiamo to be evaluated and receive a cash offer too.)

Once a consumer accepts the offer, Mondiamo sends them a free and insured shipping kit and he or she then sends their stone to the company’s office in New York for authentication and final evaluation, with the diamonds graded by Mondiamo’s “highly experienced gemologists,” Schneider said.

He noted that by accepting and shipping the piece, the consumer agrees to the transaction pending the physical evaluation, adding that in nearly 100 percent of transactions so far, the payment was higher than the lowest amount offered.

Mondiamo gets a cut--15 percent of the total value of what they are a buying back (including the value of any precious metal or side stones) or $200, whichever is higher--and Blue Nile gets compensated for every referral, meaning every customer that comes to Mondiamo.com through Blue Nile.
In addition, everybody who sells a diamond through Mondiamo gets a $150 coupon code to use on BlueNile.com.

In

a news release announcing the new service, Blue Nile said the same thing that other diamond buyback sites that have launched in recent years have said: that the process in general is too opaque, and provides consumers little to no transparency when it comes to the true value of the diamond they are selling.

Their service is available only in the United States and Canada now, but Blue Nile said there are plans to expand it globally.

Seattle-based e-tailer Blue Nile is one of a number of companies trying to gain a foothold in the lucrative secondhand diamond jewelry market, which is estimated at about $1 trillion globally.

De Beers opened the International Institute of Diamond Valuation (IIDV) in New York in August 2014.

The program, which allows consumers to sell their diamonds directly to De Beers via the IIDV website or through one of the program’s partner jewelers (which now number 27 and also are Forevermark dealers), tested for 18 months before officially launching in March 2016.

There’s also Worthy.com, which allows consumers to put their diamonds up for sale directly through the Worthy website or via a retail partner. The diamond is then put up for auction, which the consumer can monitor in real time. At the end, he or she can decide to accept the purchase price or take back their stone.

The partnership with Mondiamo also provides a new service that can be offered by Blue Nile, which is looking for ways to diversify as its sales have stagnated, opening stores and expanding its selection of non-bridal jewelry.
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

Sotheby’s Paraiba tourmaline 7.70 carats
AuctionsJun 18, 2026
Paraíba Tourmalines Sell for $3.4M at Sotheby's

The recent high jewelry auction, which also featured the sale of a 10-carat blue diamond, was “a celebration of color.”

Almasika Le Cauri Endiamanté Drop Earrings
CollectionsJun 18, 2026
Michelle Obama Wears Almasika Earrings Symbolizing Feminine Power

She wore the “Le Cauri Endiamanté” earrings, our Piece of the Week, in the Obamas’ first dual portrait for the Obama Presidential Center.

Graphic for Episode 6 of My Next Question featuring Michelle Orman
PodcastsJun 17, 2026
Episode 6: Las Vegas 2026-Trends, Traffic, Broken Bathrooms

Couture’s Michelle Orman joins Amanda Gizzi and Michelle Graff for this special post-Market Week episode of My Next Question.

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.

SSEF emerald with filler
GradingJun 17, 2026
SSEF Issues Warning on Refilled Emeralds

The lab is seeing emeralds with filler added post-testing enter the market, accompanied by reports that indicate little to no treatment.

Weekly QuizJun 17, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Former Patek Philippe President Philippe Stern
WatchesJun 17, 2026
Patek Philippe’s ‘Visionary’ Leader Philippe Stern Dies at 88

The third generation of the Stern family to head Patek Philippe, he navigated the “quartz crisis” and preserved the brand’s independence.

James Avery Schertz Texas storefront
MajorsJun 17, 2026
James Avery to Revamp In-Store Retail Experience

The Texas-based jeweler is gradually rolling out a new experience-forward layout in its stores.

DCA-NJ-article-1872x1052-060826.jpg
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce Solutions

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

Seattle Seahawks Championship Ring by Jason of Beverly Hills
MajorsJun 17, 2026
Seahawks’ Super Bowl Ring Blends Meaningful Design, Technical Craftsmanship

The Super Bowl LX champions were honored with diamond and blue sapphire rings by Jason of Beverly Hills.

Marianna Smirnova
Policies & IssuesJun 17, 2026
Community for Ethical Jewelry Names New Executive Director

Marianna Smirnova previously spent a decade working with the Responsible Minerals Initiative, in addition to other relevant roles.

NBA Larry O'Brien Trophy
MajorsJun 16, 2026
5 Things to Know About the 2026 NBA Championship Trophy

The New York Knicks took home the Larry O'Brien Trophy crafted by Tiffany & Co.

Lionheart Cactus Pendant
TrendsJun 16, 2026
Post-Vegas Jewelry Trend Report: Big Beads, Western Flair, White Metals

Associate Editor Natalie Francisco lists the trends she spotted during Jewelry Market Week that will dominate the second half of 2026.

Alicia Arnold
MajorsJun 16, 2026
Sasha Primak Hires New Design Director

The manufacturer has tapped Alicia Arnold, the former director of custom design at Tiny Jewel Box.

Boulle family in hard hats
IndependentsJun 15, 2026
DeBoulle Diamond & Jewelry to Renovate Dallas Flagship

The revamped, elevated space will feature a two-story Patek Philippe atelier and a rooftop patio for parties.

G Shock Coca Cola
WatchesJun 15, 2026
G-Shock, Coca-Cola Partner on Bottle-Inspired Watch

The special-edition piece marks the 140th anniversary of the iconic beverage brand.

Buddha Mama earrings
TrendsJun 15, 2026
Amanda’s Style File: Tiny Charms Are Trending

Here are 13 small charms to inspire your layered looks this summer.

16th century flower cluster hogback diamond ring
AuctionsJun 12, 2026
16th-Century ‘Hogback’ Diamond Ring Going Up for Auction in London

Found by a metal detectorist, the ring likely belonged to a wealthy, possibly royal, owner, said Noonans.

Chouette Designs Margaux Ring
CollectionsJun 12, 2026
Chouette Designs To Launch Collection Celebrating All Types of Love

Our Pride Month Piece of the Week, the “Margaux” ring, is part of the wife-and-wife team’s new “Lovestoned” collection.

CBG logo
Events & AwardsJun 12, 2026
CBG Announces Plans for Phoenix Show

The group has named the keynote speaker and announced a new pavilion for its next event, which is slated for September.

A selection of animal jewelry
EditorsJun 11, 2026
This Was the Best Animal Jewelry in Las Vegas

From lions and hippos to snails and fish, Senior Editor Lenore Fedow wrangles her picks for cutest jewelry critters in Las Vegas.

Marie-Laure Cérède
MajorsJun 11, 2026
Former Cartier Creative Director To Head Chanel’s Jewelry Creation Studio

Marie-Laure Cérède will join Chanel as the new director of its jewelry creation studio, starting in October.

Smiling Rocks booth at JCK Las Vegas 2026
Lab-GrownJun 11, 2026
Smiling Rocks’ ‘Wish Jar’ Generates 100+ Wishes in Las Vegas

At the JCK show, the lab-grown diamond brand teamed up with Jewelers for Children to support Make-A-Wish India.

Ilana McCabe
SourcingJun 11, 2026
Signet Jewelers Exec Joins Diamonds Do Good Board

Ilana McCabe is Signet’s vice president of public relations and brand communications.

Azure blue diamond and 5.04-carat fancy vivid blue diamond
AuctionsJun 10, 2026
31.62-Carat ‘Azure Blue’ Diamond Sells For $8M+ at Christie’s

It was a banner day for blue gemstones, with another blue diamond topping $8 million and a 41-carat sapphire going for $2.3 million.

Saks Fifth Avenue New York City storefront
MajorsJun 10, 2026
Saks Global Receives Bankruptcy Court Approval for Reorganization

The approval means the retailer is on track to exit bankruptcy proceedings this summer.

Jalen Javon Davis and Leslie La Vun Jones II
CrimeJun 10, 2026
2 Suspects Arrested in Texas Jewelry Store Robbery

The men are believed to be part of the group of several masked suspects that robbed Marc Robinson Jewelers in April.

Sylvie Levine wearing engagement ring
CollectionsJun 10, 2026
Sylvie Debuts ‘Elevated’ Bridal Collection Inspired By Designer’s Ring

The bridal-focused brand is also launching its Custom Atelier this summer, a digital custom design tool for its authorized retailers.

×

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