CrimeAug 18, 2026
2 California Men Arrested in Fatal Vehicle Smash RobberyOne is the driver who allegedly crashed a car into a Sacramento jewelry store in April, striking a 71-year-old employee who later died.
AuctionsAug 29, 2016
3.81-Ct. Blue Diamond Kicks Off Fall for Bonhams London
The oval-cut fancy intense blue diamond could sell for as much as $2.4 million at the auction house’s upcoming Fine Jewellery sale.
This 3.81-carat oval-cut fancy intense blue diamond is expected to be the top lot at Bonhams’ Sept. 20 Fine Jewellery sale in London.
London--When Bonhams London kicks off its autumn auction season next month, it will do so with a number of high quality blue stones.
Leading the Fine Jewellery sale, which is scheduled for Sept. 20, will be an oval-cut 3.81-carat fancy intense blue diamond. Coming from a private British collection, the stone is expected to sell for $1.7 million to $2.4 million.
Bonhams currently holds the price-per-carat world auction records for both a fancy deep blue diamond ($1.77 million per carat) and a fancy grayish-blue diamond ($730,000 per carat).
Also topping the London sale is a pair of earrings featuring cushion-shaped Kashmir sapphires weighing just under 9 carats surrounded by old brilliant-cut diamonds. The earrings are expected to garner as much as $790,000.
An 11-carat marquise-cut diamond set in a six-claw ring and a 13.77-carat brilliant-cut diamond ring from J. Roca both have a pre-sale high of $330,000.
Other lots expected to top the sale include a pair of sapphire and old brilliant-cut diamond earrings ($200,000 to $260,000) and a necklace and earrings suite featuring cabochon rubies and diamonds. It could garner between approximately $130,000 and $200,000.
This ring from J. Roca features a 13.77-carat brilliant-cut diamond of I color and VVS2 clarity between shoulders set with trios of graduated baguette-cut diamonds. It is estimated to sell in the range of $240,000 to $330,000.
A marquise-cut 11-carat diamond set in a six-claw 18-karat gold setting could go for as much as $330,000.
The necklace in this suite features an articulated geometric chain of diamonds alternating with oval cabochon rubies, suspending a large scrolling cartouche pendant set with oval cabochon rubies and diamonds. The earrings are created in a similar style. All pieces are convertible--the necklace detaches to form bracelets, a pendant and a brooch, while the earrings convert to single pair of ear or dress clips. The set is predicted to garner in between $130,000 and $200,000.
This pair of earrings features two cushion-shaped Kashmir sapphires weighing 8.97 carats and 8.93 carats, each surrounded with old brilliant-cut diamonds and an old brilliant-cut diamond surmount. They’re expected to garner between $530,000 and $790,000.
A pair of earrings, each set with a cushion-shaped sapphire weighing 4.16 and 5.01 carats and a border of old brilliant-cut diamonds, could sell in the range of $200,000 to $260,000.
Additional highlights include an 18.77-carat oval-cut Sri Lanka sapphire ring with a brilliant-cut diamond border and pave-set diamond shoulders, estimated to garner as much as approximately $110,000.
A 12.50-carat Colombian emerald and diamond cluster ring circa 1960 also will go up on the block at the auction house’s New Bond Street salesroom next month, with a pre-sale estimate high of $53,000, as will diamond pendent earrings circa 1830 weighing 3.02 and 3.25 carats, E and F in color and Type IIa clarity. They have a pre-sale range of $40,000 to $53,000.
Bonhams’ London jewelry sale also will include signed pieces from Harry Winston, Cartier, Van Cleef & Arpels, Tiffany & Co., Chaumet, Boucheron and Hemmerle.
The full list of items to be auctioned at the upcoming sale, which has 125 total lots, can be found on Bonhams.com.
Editors' Picks
Sponsored by
More on Auctions
The Latest
ColumnistsAug 18, 2026
Peter Smith: The IKEA Effect and Bridal Branding In a new column, Peter Smith posits that people actually enjoy putting together IKEA furniture, and the same is true for engagement rings.
CrimeAug 18, 2026
Thieves Snatch $1M in Jewelry From New Jersey Jeweler9lakha Jewelers in Iselin, New Jersey, was the target of a smash-and-grab robbery on Aug. 8.
Brought to you by
Why More Jewelry Retailers Are Hosting Turnkey Estate Buying EventsRetailers are seeking new ways to attract customers, increase traffic, and create revenue – Estate buying events are a popular solution.
Lab-GrownAug 18, 2026
Ring Concierge, Kendall Jenner Collab on Bridal Earrings GiveawayThe jeweler has partnered with Jenner’s 818 Tequila brand to gift lab-grown diamond studs to a bride-to-be and their bridal party.
Weekly QuizAug 13, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
Events & AwardsAug 17, 2026
Exhibition on Louis Comfort Tiffany’s Studios to Open at The MetThe exhibition will feature more than 100 drawings of stained-glass lampshades, windows, and more, many created by women and émigrés.
CollectionsAug 17, 2026
Marquise Diamonds Dance in Spinelli Kilcollin’s ‘Wren’ CollectionMarquise-cut diamonds in drop charms are the center of the new collection, reflecting the movement of a dancer in modular styles.
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center StageColored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.
Events & AwardsAug 17, 2026
There’s a New Jewelry Show Coming to FloridaThe inaugural Fort Lauderdale Jewelry, Antique, & Object Show will be held from Jan. 28 through Feb. 1, 2027.
IndependentsAug 14, 2026
Smyth Jewelers to Open Fourth LocationThe family-owned jeweler will open a new showroom in Bel Air, Maryland, this fall.
CrimeAug 14, 2026
Wife of Man Convicted in Jeweler’s Murder Sentenced for Conspiracy Amanda Ileana Hernandez is married to Carlos Hernandez, one of two men in prison for the 2024 murder of Michigan jeweler Hussein Murray.
TrendsAug 14, 2026
Paul Morelli’s Latest ‘Wavey Vine’ Earrings Embrace ColorThe reimagined jewel, our Piece of the Week, trades the diamonds in the original 1998 design for blue, pink, yellow, and green sapphires.
Supplier BulletinAug 13, 2026
Your Piece Could Be the One Editors Talk AboutSponsored by American Gem Trade Association
FinancialsAug 13, 2026
Pandora’s ‘Talisman’ Collection Shines, Lab-Grown Diamond Sales FallIn the United States, second-quarter sales were flat amid soft consumer sentiment and lower in-store traffic.
SourcingAug 13, 2026
2,488-Carat Diamond, Largest Found in Botswana, Has a New Owner Lucara Diamond Corp., which recovered the “Motswedi” diamond from the Karowe mine, sold the stone for an undisclosed amount.
CollectionsAug 13, 2026
John Hardy Infuses ‘Icon,’ ‘Heishi’ Collections with ColorThe expanded collections now feature hand-cut gemstones like topaz, tanzanite, chrysoprase, chalcedony, smoky quartz, and fire opal.
Lab-GrownAug 13, 2026
Jean Dousset Opens Third StoreThe lab-grown diamond jewelry brand’s newest boutique is in Westfield Valley Fair in Santa Clara, California.
SourcingAug 12, 2026
Eshed-Gemstar on the Painstaking Process of Cutting ‘The Legacy Emerald’The gemstone supplier and manufacturer acquired the remarkable 104-gram Zambian emerald at Gemfields’ auction in May.
CrimeAug 12, 2026
Elderly NYC Woman Targeted in Jewelry Swap SchemeTwo suspects offered to trade the woman a “winning” lottery ticket for her jewelry.
SourcingAug 12, 2026
Another Diamond Mine Poised to CloseFinsch has been in business rescue since May, and owner Petra Diamonds said it sees no viable path forward for the mine.
CrimeAug 12, 2026
Jewelry Store Employee Gets 20 Years to Life in Choking Death of BossMichel Patrick DeSalles was sentenced after pleading guilty to the 2017 murder of Omid Gholian, who owned a jewelry store in Manhattan.
MajorsAug 12, 2026
Frederick Goldman Names New SVP of SalesLongtime industry executive Beth Miller has taken on the role.
MajorsAug 11, 2026
Signet Jewelers Selects Mattel Exec to Lead Zales, BanterJamie Cygielman will take on the role on Aug. 24.
IndependentsAug 11, 2026
Polly’s Fine Jewelry Co-Owner Richard Moore Dies at 69Moore, Polly’s husband, is remembered as a family man with an easygoing spirit and a love for sports and the outdoors.
ColumnistsAug 11, 2026
Creative Connecting: How to Sell Colored Gemstones to Gen ZDuvall O’Steen and Jen Cullen Williams share the best ways to display, present, and explain colored gemstones to younger customers.
Events & AwardsAug 11, 2026
NAJA Announces Lineup For 2026 Fall Virtual ConferenceThe mid-year conference for jewelry and watch appraisers will take place Sept. 5-6 on Zoom.
TechnologyAug 10, 2026
Colorado Jeweler Launches Customization Tool He Built HimselfHonest Hands Ring Co. Founder Benjamin Bosworth shared his thoughts on jewelry technology and why AI can never replace the human element.
