Declining supply and growing demand persist in the colored gemstone market, presenters from Gemworld said at AGTA GemFair Tucson.
8-Carat “Sky Blue” Diamond Garners $17M
The fancy vivid blue diamond was expected to be the top lot of Sotheby’s Nov. 16 sale in Geneva but was topped by a step-cut 17.07-carat fancy intense pink.

New York--An 8.01-carat fancy vivid blue diamond, dubbed “The Sky Blue Diamond” to emphasize its rare hue, sold for $17.1 million, or $2.1 million per carat, Wednesday.
The stone, which is set in a Cartier ring, was supposed to lead the Sotheby’s Magnificent Jewels and Noble Jewels sale in Geneva, but it sold toward the low end of its estimated range of $15-$25 million.
The sale’s top lot ended up being a step-cut fancy intense pink diamond weighing 17.07 carats. Set between triangular diamonds weighing 3.07 and 3.13 carats, the pink garnered $20.8 million at Sotheby’s.
A few other pink diamonds fell within the top lots: a pear-shaped fancy intense pink diamond weighing 13.20 carats went for $16.2 million, a 40.30-carat pear-shaped fancy light pink diamond garnered $7.5 million and a step-cut fancy intense pink diamond weighing 8.73 carats sold for $4.3 million.
Also in the top lots were an oval fancy deep blue diamond weighing 7.74 carats set between shield-shape diamond shoulders that went for $13.7 million, and a cushion-shaped 8.37-carat ruby and diamond Cartier ring that garnered $4.3 million.
The Magnificent Jewels and Noble Jewels sale totaled $136.5 million in Geneva.

Meanwhile, Christie’s Geneva sold a 9.14-carat, fancy vivid pink, VS2-clarity pear-shape diamond for $18.1 million, or $2 million per carat, at its Magnificent Jewels auction on Tuesday.
The auction house also set a new world record at the sale for a pair of earrings when it sold two pear-shape, D-color, flawless diamonds weighing 52.55 carats and 50.47 carats from Paris haute joaillerie house Boehmer et Bassenge for $17.6 million.
A couple of necklaces also were notable in the sale.
A diamond fringe necklace from Harry Winston weighing a total of 128.24 carats sold for $8.3 million was bought back by Harry Winston, and a Boehmer et Bassenge necklace featuring two pear-shape diamonds weighing 31.38 and 12.11 carats and an 8.07-carat brilliant-cut diamond that were surrounded by pink diamonds and set in a double line of vari-cut diamond flowerhead clusters sold for $8.1 million.
Christie’s Magnificent Jewels sale garnered revenues of $97.1 million.
The Latest

The designer’s new patent transforms the everyday clasp into her jumbo “Lobster Clasp,” modeled after the look of a crustacean’s claw.

Kenewendo, Botswana’s minister of minerals and energy, will discuss the future of diamonds.

This year will feature a new MJSA Showcase and partnership with Piazza Italia.

Sales at the Rio Tinto-owned mine also slid by a double-digit percentage, falling 37 percent in a difficult market for diamonds.


Heidi Gardner, an SNL cast member, wore the smoky quartz earrings on the “SNL50: The Anniversary Special” red carpet on Sunday.

The reversal comes less than two months after the Zambian government reinstated the tax in an effort to bring in more money.

Colored stones are stepping into a jewelry spotlight typically reserved for diamonds—are you ready to sell color?

The organization also announced its newly elected officers and directors.

As anticipated, Anglo took another impairment charge on the diamond miner and marketer, which saw revenue sink 23 percent in 2024.

Ronald Winston is giving the 2.33-carat “Winston Red” to the Smithsonian, 67 years after his father donated the Hope Diamond.

Kirit Bhansali, a partner in Smital Gems and chairman of India Jewellery Park, will take on the role of chairman.

Alisha Cornett, Nic Faini, Eric Stevens, and Seth Shipley have joined the organization’s board of directors for a three-year term.

The company has to pay the Justice Department and FinCEN for violating the Bank Secrecy Act, the U.S.’s main anti-money laundering law.

Petra Diamonds Ltd. CEO Richard Duffy resigned as the diamond miner reported a 30 percent drop in sales to start its fiscal year.

Pinterest is a potential gold mine for jewelry brands, Emmanuel Raheb writes, provided they follow these five tips.

The boutique is the French luxury brand’s first airport store on the West Coast.

The store’s facade now features the iconic swan logo and campaign images of the “Wicked” star.

Beginning in April, companies importing diamonds into the United States will have to list the country in which the diamonds were mined.

Assimon will be leaving at the end of February after nearly five years with De Beers.

Designs from the brand’s “Oera” collection have been reimagined with modern masculinity in mind.

The wholesale collection features material from the Rock Creek mine in a variety of colors.

The “Divinely Guided” collection, created in collaboration with Theresa Caputo, features symbols that celebrate the power of connection.

Show some love on Valentine’s Day with this 14-karat yellow gold ring that features pavé diamonds.

The employee confronted the thief, causing the suspect to flee and leave behind the suitcases full of jewelry.

Namib Desert Diamonds also put its security manager on leave following last month’s robbery that left one employee dead.

AGTA recently concluded its 2025 GemFair event in Tucson and is already gearing up for next year’s show, set for Feb. 2-6, 2026.