Auctions

5-Carat ‘Ai’ Fancy Vivid Blue Diamond Goes For $13.8M

AuctionsOct 03, 2018

5-Carat ‘Ai’ Fancy Vivid Blue Diamond Goes For $13.8M

Coming in behind it at No. 2 in Sotheby’s Hong Kong jewelry auction was a 3.37-carat pear-shaped fancy intense blue diamond.

20180919_Sothebys-Header.jpg

Hong Kong—The 5-carat fancy vivid blue ‘Ai’ diamond was named after the Chinese word for love, and one buyer certainly fell for the stone at auction Wednesday—to the tune of $13.8 million, to be precise.

The VS2 step-cut fancy vivid blue diamond set in an 18-karat white gold ring and flanked with baguette diamonds led the Sotheby’s Hong Kong Magnificent Jewels and Jadeite jewelry sale, falling within its pre-sale estimate of $12.5 to $15.3 million.

The jewelry auction totaled approximately $40.2 million.

It seemed like blue diamonds were all the rage, with the Ai diamond followed in the results by another stone of a similar color: coming in at No. 2 was an 18-karat white gold ring set with a pear-shaped fancy intense blue diamond weighing 3.37 carats. It sold for $3.1 million.

Just behind that was a ring centered on a step-cut 18.45-carat white diamond between two shield-shaped diamonds and mounted in platinum that went for $2.3 million.

Rounding out the top five were a 4.31-carat cut-cornered square modified brilliant-cut fancy intense purplish pink diamond set between trapeze-cut diamonds and mounted in platinum and 18-karat white gold, which sold for about $1 million, and a ring set with an old European-cut diamond weighing 10.05 carats in 18-karat white gold that went for about $934,000.

The sale also included a number of pieces from Wallace Chan, the first Asian jeweler to exhibit at the Biennale in Paris in 2012, who today can be seen at such major fairs as The European Fine Art Fair (TEFAF) and Masterpiece in London.




Only one of his works sold at the auction, according to the Sotheby’s website—the earrings pictured above. Featuring tsavorite garnets, brilliant-cut diamonds, jade, emeralds, diamond briolettes and seed pearls, they fell within their pre-sale estimate range when they garnered approximately $88,000.

The auction didn’t sell a tanzanite, chalcedony and diamond ring, expected to garner as much as $230,000, or a pair of earrings featuring conch pearl, various gemstones and diamonds, expected to sell for between $281,000 and $408,000, among other Chan lots.

A number of important jade pieces also didn’t sell Wednesday, including a necklace composed of 51 jadeite beads of a brilliant emerald green color and with “very good” translucency, with a diamond clasp signed Chaumet, and two fine jadeite bangles displaying hues of both lavender and green that were listed separately, with estimates of $665,000-$895,000 and $640,000-$895,000.

To

see the full list of results from Wednesday’s Magnificent Jewels and Jadeite jewelry sale, visit Sothebys.com.
Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Eddie Sakamoto
SourcingFeb 23, 2026
Designer Eddie Sakamoto, a Humble Artist, Dies at 72

Sakamoto, who died in mid-January following a sudden illness, is remembered for his humility and his masterful, architectural designs.

NYCJAOS spring show 2026
Events & AwardsFeb 23, 2026
NYCJAOS Announces Four-Day Spring Show

The April event will feature a new VIP shopping day requiring a special ticket.

Dua Lipa Bulgari Brand Ambassador
TrendsFeb 23, 2026
Dua Lipa Is Bulgari’s New Ambassador

Bulgari chose the British-Albanian singer-songwriter for her powerful and enduring voice in contemporary culture, the jeweler said.

dca-laptop.jpg
Brought to you by
DCA Enters a New Chapter in Jewelry Education

With refreshed branding, a new website, updated courses, and a pathway for growth, DCA is dedicated to supporting retail staff development.

US Supreme Court building
Policies & IssuesFeb 20, 2026
Supreme Court Rules Against Most of President Trump’s Tariffs

In a 6-3 ruling, the court said the president exceeded his authority when imposing sweeping tariffs under IEEPA.

Weekly QuizFeb 19, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Headshot of National Jeweler columnist Peter Smith
ColumnistsFeb 20, 2026
Peter Smith: Happiness, Cavemen, and Jewelry Sales

Smith encourages salespeople to ask customers questions that elicit the release of oxytocin, the brain’s “feel-good” chemical.

Jewelers Vigilance Committee logo
MajorsFeb 20, 2026
Jewelers Vigilance Committee Names Julie Yoakum Board Chair

JVC also announced the election of five new board members.

MJSA Apprenticeship Guide
Brought to you by
The MJSA Mentor & Apprenticeship Program: Attracting & Training the Next Generation of Bench Jewelers

Launched in 2023, the program will help the passing of knowledge between generations and alleviate the shortage of bench jewelers.

Boucheron Faisceaux Brooch
CollectionsFeb 20, 2026
Boucheron’s ‘Faisceaux’ Brooch Heads to V&A Museum

The brooch, our Piece of the Week, shows the chromatic spectrum through a holographic coating on rock crystal.

Ann Weaver Bailey, also known as “Mama Ann”
IndependentsFeb 19, 2026
Bailey’s Fine Jewelry Co-Founder ‘Mama Ann’ Bailey Dies at 100

Raised in an orphanage, Bailey was 18 when she met her husband, Clyde. They opened their North Carolina jewelry store in 1948.

Material Good Boston Location Interior Rendering
IndependentsFeb 19, 2026
Material Good Opens Third Location

Material Good is celebrating its 10th anniversary as it opens its new store in the Back Bay neighborhood of Boston.

Original Miami Beach Antique Show sign
Events & AwardsFeb 19, 2026
The Original Miami Beach Antique Show Returns in March

The show will be held March 26-30 at the Miami Beach Convention Center.

My Next Question podcast with Marion Fasel and Natalie Francisco
PodcastsFeb 18, 2026
Episode 2: Jewelry Trends & Does the Red Carpet Matter?

Are arm bands poised to make a comeback? Has red-carpet jewelry become boring? Find out on the second episode of the “My Next Question” podcast.

Select Jewelry Graziella Air
MajorsFeb 18, 2026
Select Jewelry Inks Agreement to Distribute Lightweight Gold Jewelry

It will lead distribution in North America for Graziella Braccialini's new gold pieces, which it said are 50 percent lighter.

Community for Ethical Jewelry Logo
Policies & IssuesFeb 18, 2026
Community for Ethical Jewelry Looks for Executive Director

The organization is seeking a new executive director to lead it into its next phase of strategic growth and industry influence.

DCA colored gemstone course on laptop
Events & AwardsFeb 18, 2026
DCA to Host Gemstone Selling Education Session at IJO Event

The nonprofit will present a live, two-hour introductory course on building confidence when selling colored gemstones.

Cece Jewellery Traveller’s Tale Ring
TrendsFeb 17, 2026
A Bit of Jewelry for the Year of the Horse

Western wear continues to trend in the Year of the Fire Horse and along with it, horse and horseshoe motifs in jewelry.

Anza gems
SourcingFeb 17, 2026
Colored Gemstone Experts Talk Tariffs, Trends in Tucson

Although the market is robust, tariffs and precious metal prices are impacting the industry, Stuart Robertson and Brecken Branstrator said.

Dr. George Rossman
GradingFeb 17, 2026
Dr. George Rossman, Former GIA Governor, Dies at 81

Rossman, who advised GIA for more than 50 years, is remembered for his passion and dedication to the field of gemology.

Nest doorbell camera footage of suspect in Nancy Guthrie abduction
CrimeFeb 13, 2026
JSA Offering $10K Reward in Nancy Guthrie Case

Guthrie, the mother of “Today” show host Savannah Guthrie, was abducted just as the Tucson gem shows were starting.

Butterfield Jewelers going out of business sale ad
IndependentsFeb 13, 2026
97-Year-Old New Mexico Jewelry Store To Close

Butterfield Jewelers in Albuquerque, New Mexico, is preparing to close as members of the Butterfield family head into retirement.

Paul Morelli Rosebud Necklace
CollectionsFeb 13, 2026
A ‘Rosebud’ Necklace for Valentine’s Day

Paul Morelli’s “Rosebud” necklace, our Piece of the Week, uses 18-karat rose, green, and white gold to turn the symbol of love into jewelry.

Jewelers for Children
MajorsFeb 13, 2026
JFC Announces New Beneficiaries

The nonprofit has welcomed four new grantees for 2026.

Saks Fifth Avenue Club personal styling suite in Austin Texas
MajorsFeb 12, 2026
These 8 Saks Fifth Avenue Stores Are Closing

Parent company Saks Global is also closing nearly all Saks Off 5th locations, a Neiman Marcus store, and 14 personal styling suites.

Tudor Heart pendant on display at British Museum
CollectionsFeb 12, 2026
British Museum Raises $5M to Keep Jewel Linked to Henry VIII, Katherine of Aragon

It is believed the 24-karat heart-shaped enameled pendant was made for an event marking the betrothal of Princess Mary in 1518.

AGTA Spectrum, Cutting Edge Buyers Choice winners 2025
SourcingFeb 12, 2026
‘Cotton Candy’ Necklace, 35-Carat Kunzite Win 2025 ‘Buyer’s Choice’ Awards

The AGTA Spectrum and Cutting Edge “Buyer’s Choice” award winners were announced at the Spectrum Awards Gala last week.

Kering Logo
Events & AwardsFeb 12, 2026
Kering Opens Entries for 2026 Sustainability-Focused Award

The “Kering Generation Award x Jewelry” returns for its second year with “Second Chance, First Choice” as its theme.

×

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