10 Carat Blue Diamond Expected to Achieve Over $6 Million at Sotheby’s High Jewelry Auction

 

A rare 10.02 carat fancy intense blue diamond is set to become the centrepiece of Sotheby’s highly anticipated High Jewelry auction in New York, with an estimated value exceeding $6 million.

The exceptional unmounted diamond is a cut cornered rectangular modified brilliant cut and represents a significant rarity in the auction market. It is only the third fancy intense blue diamond weighing 10 carats or more to appear at auction since 2008, highlighting the extraordinary scarcity of these coveted coloured diamonds.

The auction will also feature a selection of remarkable coloured diamond jewels, with several lots carrying estimates above $1 million.

Among the highlights is a 13.77 carat fancy light purplish pink diamond, a cut cornered rectangular stone estimated between $1.5 million and $2 million. Another standout piece is a 6.76 carat fancy grayish blue cushion cut diamond ring, surrounded by pink diamonds and complemented by shield cut diamonds, with an estimate of $1.2 million to $1.8 million.

A 5.02 carat oval fancy intense pink diamond, accompanied by two light pink diamond side stones weighing over 0.40 carats each, carries an estimate of $2 million to $3 million. A 4.19 carat fancy purple pink oval diamond ring, enhanced with round diamonds along the band, is expected to achieve between $1 million and $1.5 million.

The cover lot of the sale is a spectacular 1960s diamond necklace created by Harry Winston. Unlike the house’s traditional designs that often feature marquise and pear shaped diamonds, this exceptional piece focuses on round diamonds. Containing more than 120 carats of diamonds, the necklace features trefoil clusters of marquise diamonds combined with round diamond pairings and can also be transformed into two bracelets. It carries an estimate of $800,000 to $1.2 million.

Continuing its collaboration with De Beers, Sotheby’s will also offer an 11.33 carat internally flawless old mine cut diamond with D colour and Type IIa classification, estimated at $600,000 to $800,000. The sale will also include two rings featuring 2.01 carat pear shaped diamonds, with part of the proceeds benefiting the Peace Parks Foundation, a conservation charity co founded by the late Nelson Mandela.

Other highlights include five exceptional Paraiba tourmalines ranging from 6.11 to 8.48 carats, sourced from a private collection. These rare gemstones will be offered individually, apart from one matching pair. The most valuable Paraiba tourmaline is estimated at $350,000 to $550,000.

The auction will also showcase important historic jewellery, including a diamond necklace created by René Lalique in the 1890s. The piece comes with significant provenance, having belonged to descendants of Elizabeth Sarah Morgan Jay, who was believed to have received it as a wedding gift from her relative J. P. Morgan in 1910.

Sotheby’s latest High Jewelry auction once again demonstrates the continued global demand for exceptional coloured diamonds, rare gemstones, and historically important jewels, where rarity, provenance, and craftsmanship continue to drive record breaking valuations.

Source: DCLA

Tiffany & Co Re-opens Stores after $6m Fine

 

Tiffany & Co has been allowed to re-open three stores in Indonesia, after paying a $6.1 million fine for alleged import violations.

They were closed in February by customs authorities pending checks on whether the company had paid levies on imported goods.

The Jakarta Customs and Excise Directorate General subsequently conducted an audit and issued a bill for Rp 97.49 billion (USD 6.1 million) for Tiffany & Co’s alleged customs violations, including administrative sanctions and unpaid taxes such as import duties, VAT, and income tax.  

Tiffany & Co, part of the LVMH conglomerate, paid the fine and agreed to comply with all applicable laws and regulations, but has made no admission of wrongdoing.

Indonesia’s finance minister Purbaya Yudhi Sadewa personally oversaw the removal of the customs seal at the Plaza Indonesia store on 8 June.

He has been at the forefront of a very public crackdown on undeclared high-value goods and his presence is seen as a clear warning to other luxury brands.

The Tiffany case is not isolated. Bening Luxury, a Jakarta-based diamond jewelry store, was closed at around the same time and remains closed, also over suspected customs.

We have reached out to Tiffany & Co for comment.

Source: IDEX

US Consumers Continue to Prefer Natural Diamonds, De Beers Study Reveals

 

New research from De Beers highlights continued strong consumer demand for natural diamonds in the United States, with natural diamond jewellery remaining the most desired choice among luxury jewellery buyers.

The latest US Diamond Acquisition Study, based on insights from 18,500 women across the US, reveals that consumers continue to view natural diamonds as a symbol of value, celebration and personal achievement.

The study found that natural diamonds rank as the most desirable luxury jewellery gift, with 11% of women choosing natural diamond jewellery as their preferred option. This places natural diamonds ahead of lab-grown diamonds at 8%, other gemstones at 5%, and plain gold jewellery at 4%.

Average spending on diamond jewellery has also increased significantly. The average purchase price for natural diamond jewellery reached $4,063 in 2025, up from $3,242 in 2023, driven by consumers choosing larger diamond sizes, with the average total carat weight increasing from 1.65 carats to 1.86 carats.

One of the key findings is the growing influence of Generation Z, which has become the second largest generation of diamond buyers. Gen Z now represents 23% of natural diamond demand value despite making up only 18% of the population.

Younger consumers are also spending more on natural diamonds, with Gen Z buyers spending an average of $4,080 per purchase compared with $2,250 for Baby Boomers.

While engagements and weddings remain important drivers of diamond demand, the way consumers purchase diamonds is changing. Three quarters of US diamond demand now comes from non-bridal occasions, including birthdays, career milestones, promotions, personal achievements and self-purchase.

De Beers found that Gen Z buyers are particularly motivated by self-expression, viewing diamonds as a reflection of personal identity. They also rely heavily on social media when researching jewellery purchases.

Diana Mitkov from De Beers’ Diamond Demand Insights & Analytics team said the findings show that consumers continue to aspire to own natural diamonds, while the reasons behind purchases are evolving.

“Traditional milestones such as engagements are no longer the only occasions where consumers celebrate with diamonds. Today’s buyers are looking for meaningful pieces that reflect their own stories and achievements.”

The report also highlighted positive trends among independent US jewellers. Retail data from 950 stores showed natural diamond sales increased by 4% year-on-year in the fourth quarter of 2025 and 9% in the first quarter of 2026.

Coloured and lower-colour natural diamonds, promoted through De Beers’ “Desert Diamonds” campaign, performed particularly well, with sales growth of 15% and 19% respectively.

While lab-grown diamond jewellery continues to grow in volume, falling prices have reduced its overall value share. In 2025, natural diamonds represented approximately 85% of independent jewellers’ diamond sales value compared with 15% for lab-grown diamonds.

The study also found that sales of larger lab-grown diamonds decline once stones reach 3 carats or more, suggesting consumers may question the value and appeal of very large synthetic diamonds.

De Beers believes the future of natural diamonds will be supported by changing supply and demand dynamics. Declining global natural diamond production is expected to help create a healthier supply balance, while improving demand conditions in key markets are providing renewed confidence for the industry.

The findings reinforce the ongoing appeal of natural diamonds as rare, unique creations of nature, with consumers continuing to value their emotional significance, individuality and long-term meaning.

Source: DCLA

Two Blue Diamonds Achieve More Than $8 Million Each at Christie’s Magnificent Jewels Auction

 

Rare coloured diamonds once again demonstrated their extraordinary appeal, with two exceptional blue diamonds selling for more than $8 million each at Christie’s Magnificent Jewels auction in New York.

The highlight was the Azure Blue, a remarkable 31.62 carat pear modified brilliant cut blue diamond. Graded internally flawless, VVS1 clarity and classified as a Type IIb diamond, the exceptional stone achieved $8.4 million, selling within its pre sale estimate.

Another standout was a 5.04 carat fancy vivid blue diamond ring, a marquise modified brilliant cut stone with VVS2 clarity and Type IIb classification, which sold for $8.1 million, exceeding expectations and highlighting the continued demand for the world’s rarest coloured diamonds.

The auction generated a total of $49.7 million, with all 143 lots finding buyers. Alongside the blue diamonds, exceptional sapphires, rubies, emeralds and signed jewellery from renowned houses including Graff, Cartier and Bulgari attracted strong international interest.

“From rare blue diamonds to extraordinary sapphires and rubies, the strength of demand across categories, particularly coloured stones, underscores the global enthusiasm for jewels of beauty, rarity, and provenance,” said Claibourne Poindexter, head of jewellery for the Americas at Christie’s.

Other notable results included:

• A 41.29 carat Ceylon sapphire ring, which achieved $2.3 million against a $600,000 to $800,000 estimate.

• A 15.40 carat Kashmir sapphire ring, selling for $2.2 million.

• A Graff ring featuring a 30 carat Ceylon sapphire, which achieved $1.8 million.

• A pair of David Morris earrings featuring Burmese rubies and exceptional diamonds, selling for $1.4 million.

• A historic circa 1900 brooch featuring an 18.27 carat D colour diamond and natural saltwater pearls, achieving $1.2 million.

The results reinforce the enduring strength of the luxury gemstone market, where rarity, exceptional quality, and provenance continue to drive demand. As collectors compete for truly unique natural gems, exceptional coloured diamonds remain among the most sought after treasures in the world of fine jewellery.

Source: DCLA

Van Cleef & Arpels Unveils Fascinating Egypt, A High Jewelry Tribute to Ancient Egypt

 

Ancient Egypt has captivated artists, designers, and collectors for centuries. From the grandeur of pharaohs and temples to the symbolism of scarabs, lotus flowers, and mythical creatures, Egypt’s artistic legacy continues to inspire some of the world’s greatest creative minds.

This enduring fascination, often referred to as Egyptomania, Egyptology, or Egyptophilia, is the inspiration behind Van Cleef & Arpels’ 2026 High Jewelry collection, Fascinating Egypt. The collection celebrates the Maison’s long relationship with Egyptian influences, blending historical references with exceptional craftsmanship and a modern artistic vision.

The influence of ancient Egypt has appeared throughout history in architecture, decorative arts, theatre, ballet, and cinema. Few cities showcase this connection more strongly than Paris, where Egyptian-inspired creativity has shaped the cultural landscape for generations. The installation of the Luxor Obelisk at Place de la Concorde in 1836 and the rise of Art Deco design in the 1920s helped fuel a renewed fascination with ancient Egyptian aesthetics.

Van Cleef & Arpels has been part of this movement since the early years of the Maison. Founded in Paris in 1906, the jeweller quickly embraced Egyptian-inspired motifs, creating exceptional pieces featuring lotus blossoms, scarabs, geometric forms, and rich colour combinations.

The new Fascinating Egypt collection features 180 High Jewelry creations, drawing inspiration from the Maison’s historic archives while presenting a contemporary interpretation of ancient symbolism. Among the historic treasures preserved in Van Cleef & Arpels’ heritage collection is a remarkable 1923 long pendant necklace featuring a winged scarab, lotus flowers, and a seated Egyptian figure crafted from diamonds, emeralds, rubies, onyx, and platinum.

A major turning point in global fascination with Egypt came on 26 November 1922, when archaeologist Howard Carter discovered the tomb of Tutankhamun. The discovery of magnificent treasures, including jewellery, statues, and ceremonial objects, sparked worldwide excitement and influenced fashion, art, and jewellery design.

According to Van Cleef & Arpels President and CEO Catherine Rénier, Egyptian inspiration has been part of the Maison’s creative language for more than a century. The lotus flower, a powerful symbol of rebirth and beauty, became part of the Maison’s artistic vocabulary as early as the 1910s.

The collection also reflects the influence of the Art Deco period, combining Egyptian imagery with geometric lines, symmetry, and striking contrasts. These elements remain central to Van Cleef & Arpels’ distinctive style.

One of the defining features of the collection is its use of colour and material contrasts. The Maison’s gemologists combine traditional precious stones with hard stones such as lapis lazuli and onyx, creating bold compositions that echo the vibrant palette of ancient Egyptian jewellery.

The use of polychromy, or the combination of multiple colours, brings together diamonds, coloured gemstones, and sculpted materials to create pieces that feel both historical and contemporary. Each creation demonstrates Van Cleef & Arpels’ ability to transform rare gemstones into works of art filled with emotion and storytelling.

Fascinating Egypt is more than a celebration of ancient history. It represents the continuation of a creative dialogue between the past and the future, showing how the mysteries, symbols, and beauty of Egypt continue to inspire the world of High Jewelry.

Source: DCLA

Alrosa Reports Strongest Diamond Demand in Eight Years

 

Russian diamond producer Alrosa has reported its highest level of customer interest in eight years, with diamond viewings during May more than doubling compared with the same period last year.

According to the company, the strongest demand was concentrated in diamonds exceeding 10.80 carats and rare fancy colour diamonds. The increase reflects a growing appetite for high value and investment grade diamonds at a time when supplies of large natural stones remain constrained.

Alrosa noted that approximately 80% of its 2 to 10 carat diamond assortment has recorded price increases of between 6% and 9% since the beginning of the year. These categories are commonly sought by collectors, investors and high end jewellery manufacturers.

The company conducts a substantial portion of its sales through auctions and tenders, including electronic bidding platforms that allow clients to purchase stones without physically inspecting them. Traditional viewings continue to be held through the United Selling Organization, the central hub of Alrosa’s diamond distribution network.

Dmitry Beresnev, Deputy Chief Executive Officer of Alrosa and Director of the United Selling Organization, stated that demand for large and rare fancy colour diamonds is increasing in response to growing shortages within this segment of the market.

He added that the number of viewings conducted during May nearly doubled the annual average and exceeded pre-pandemic levels recorded in 2019, suggesting a gradual recovery in global diamond demand.

JCK Las Vegas Highlights Growing Demand for Lab Grown and Affordable Luxury Jewellery

At the recent JCK Las Vegas jewellery exhibition, jewellery manufacturer Stuller unveiled a range of new products reflecting changing consumer preferences across the jewellery sector.

Among the new introductions were fancy shaped laboratory grown diamonds, including elongated ovals, old mine elongated cushions and octagonal cuts, available in both brilliant and step cut faceting styles. The company has also expanded its natural diamond offering to include old mine elongated cushion shapes, a vintage inspired cut that continues to gain popularity.

Stuller also revealed new laboratory grown gemstone colours including magenta, periwinkle and mauve, broadening design options for contemporary jewellery collections.

In response to record gold prices and ongoing inflationary pressures, the company has significantly expanded its demi-fine jewellery range. The collection includes sterling silver, 18 carat gold plated, 14 carat gold filled and vermeil jewellery, providing consumers with more affordable luxury alternatives.

The growing demi-fine category has become increasingly attractive to consumers seeking everyday jewellery with premium styling at accessible price points.

Another notable launch was Stuller’s new gemstone selector set, designed to assist customers in visualising gemstone sizes, proportions and shapes before purchase. The set includes emerald, round, pear, oval, square and marquise shapes and aims to improve the jewellery selection process for both retailers and consumers.

Market Perspective

The developments reported by both Alrosa and Stuller highlight two significant trends currently shaping the diamond and jewellery industry. On one hand, demand for large, rare natural diamonds continues to strengthen amid tightening supply. On the other, rising precious metal prices and changing consumer spending habits are accelerating growth in laboratory grown diamonds and demi-fine jewellery categories.

Together, these trends illustrate an increasingly bifurcated market, where high value natural diamonds remain sought after by collectors and investors, while affordability and versatility continue to drive growth in alternative luxury segments.

Unseen Imperial Russian Jewels for Sale

 

Rare Imperial Russian jewels, including Catherine the Great’s diamonds, and a Faberge necklace from the reign of Nicholas II, are to be offered for sale by Sotheby’s New York.

“It is difficult to overstate their rarity and historical importance,” said the auction house as it announced its Artistic Luxury: Faberge, Gold Boxes, Silver & Ceramics Art sale, on 17 June.

 “These jewels carry with them a fascinating window into the luxury and opulence of the Russian Imperial court.”

They were confiscated as part of the Russian State Jewels by the Soviet government after the 1917 revolution and have not been seen for over a century.

Three lots – all silver and diamond-set flower dress trimming by Louis David Duval of Geneva – belonged to Catherine the Great (1729 – 1796), with estimates between $30,000 and $80,000.

They were sold by Christie’s on behalf of the Soviet People’s Commissariat of Finance in 1927 to a noted dealer and are currently in a private European collection. 

Also being offered for sale is a larger trimming, of diamonds and Ceylon sapphire, that belonged Catherine’s predecessor, Empress Elizabeth Petrovna (1741-1762). Estimate $40,000 – $60,000.

Highlight of the sale is an Imperial Faberge diamond and aquamarine necklace from the reign of Emperor Nicholas II (1868 – 1918) with an estimate of $400,000 – $600,000.

Source: DCLA