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Diamond Auctions Spark Surge in High‑Carat Solitaires and Loose Stones
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The auction calendar is buzzing with diamond‑focused sales, beginning with South Gate Rooms' October 27 event, where a pear‑shaped 1.15‑carat diamond ring is expected to draw strong bids. The following day, Alnwick Auctions presents a trio of sales: an October 28 lot featuring a selection of diamond pieces from leading brands, and an October 30 catalogue that adds further high‑carat solitaire rings to the mix. Goodwin Auctions ramps up the pace with its Affordable Diamond Sale on October 31, showcasing a range of polished stones and modestly sized settings, while its Gemstone Auction on November 14 includes a notable 4.64‑carat lab‑grown diamond among other rare gems.

Mallams' November 12 auction highlights a collection of designer diamond pieces, emphasizing contemporary cuts and classic settings. The month closes with Goodwin's Luxury Diamond Auction on November 28, where a 2.00‑carat solitaire and several loose diamonds exceeding two carats are slated for sale, reflecting a market appetite for both finished pieces and raw stones. Throughout these events, a clear trend emerges: sellers are increasingly offering loose diamonds alongside finished settings, catering to buyers who wish to customize their own pieces.

Online platforms are also playing a larger role, with rapid turnaround times—often under two weeks—from consignment to payment, and full insurance coverage during transit. Collectors and investors alike are drawn to the combination of high‑carat weight, renowned provenance, and the convenience of streamlined auction processes, making this a standout season for diamond enthusiasts.

Based on 94 digest summaries · Generated October 26, 2025

Black Diamond Auctions Ltd.

September 12, 2025 —

Black Diamond Auctions Ltd. is gearing up for an exciting series of auctions featuring a diverse range of items. Their online auctions are currently active, offering bidders the chance to find everything from farm machinery and tools to antiques and furniture. In addition to personal property auctions, Black Diamond Auctions specializes in real estate, including homes, lake homes, farms, and commercial buildings. With over 40 years of experience, auctioneer Frank Imholte and his team are dedicated to helping clients transition smoothly, whether they are downsizing or selling a lifetime of collectibles. For those interested in participating, details about upcoming auctions can be found on their website. Don't miss the opportunity to bid on unique items and real estate opportunities at Black Diamond Auctions!

Philips Auctions

September 12, 2025 —

Philips Auctions in Melbourne is set to host two exciting auctions on September 15, 2025, featuring a diverse range of items. The Antique Furniture & Decorative Arts Auction and the Prestige Modern and Antique Jewellery Auction will both conclude at 9:30 AM. Among the highlights are a beautiful rhodalite garnet and diamond dress ring, a stunning Art Deco diamond and emerald set pendant, and an early Victorian sterling silver Rococo Chinoiserie tea set. Additionally, collectors can look forward to a vintage 70's brilliant cut diamond ring and a superb Art Deco Brazilian rosewood sideboard. In-room viewing is available from September 10 to September 14, 2025, providing an opportunity for potential bidders to examine these exquisite pieces up close. For those interested in the world of antiques and collectibles, Philips Auctions offers a wide array of items throughout the year. Visit their website for more details on upcoming events and auctions.

Diamond Comic Distributors

September 12, 2025 —

Diamond Comic Distributors, the leading distributor of English-language comics, toys, and games, invites collectors and enthusiasts to explore their upcoming auctions. While specific auction dates are not detailed, the company regularly features a variety of pop culture products, including comics and collectibles. For those interested in participating, it is recommended to check their website for the next auction dates and available lots. Whether you're a seasoned collector or new to the hobby, Diamond Comic Distributors offers a wealth of opportunities to enhance your collection.

First State Auction

September 12, 2025 —

First State Auctions is currently hosting an exciting online auction featuring a diverse selection of important jewels, timepieces, designer bags, and more. This auction includes 382 lots, with notable items such as a 1.92ct Paraiba Tourmaline and 1.43ct Diamond Ring, a Rolex Submariner Date Men's Watch, and a stunning 71.70ct Ruby and Diamond Necklace, among others. With a buyer's premium of 20%, this is a fantastic opportunity for collectors and enthusiasts to acquire unique pieces at competitive prices. For those interested in selling, First State Auctions is currently accepting vendor submissions for natural diamonds, gemstones, Swiss watches, and designer bags. Visit their website to view the full catalogue and participate in the auction. Don't miss out on the chance to bid on these exquisite items!

US Auction Online

September 12, 2025 —

US Auction Online is hosting an exciting array of auctions featuring a diverse selection of items. Upcoming highlights include a rare Picasso art book, a 2008 Mercedes-Benz S-Class S 550 4MATIC Sedan, and a brilliant 4.64-carat lab-grown diamond. Collectors will also find exquisite jewelry pieces such as a 14KT yellow gold plated Elgin pocket watch, a stunning ruby and diamond cross pendant, and elegant earrings featuring natural Colombian emeralds. For art enthusiasts, there are original works by renowned artists like Yves Diey and Tatiana Denisova, alongside a highly collectible Joan Miro lithograph. Additionally, the auction features unique items like a vintage 1961 Tiffany & Co. watch and a remarkable Salvador Dali etching. These auctions present a fantastic opportunity for collectors and enthusiasts alike. For more details and to view the complete listings, visit US Auction Online.

Matthews Auction Rooms

September 12, 2025 —

Matthews Auction Rooms is set to host an exciting live auction on September 23, 2025, at 5:30 PM, featuring over 730 lots of estate jewellery, gold and silver items, and silver bullion. This auction is conducted under executor and solicitor instructions, as well as contributions from private clients and pawnbrokers' unredeemed pledges. Highlights from the auction include a stunning ruby and diamond ladies necklace, a Rolex Oyster Perpetual wristwatch, and an impressive Edwardian emerald cut Colombian emerald and diamond cluster ring. For those interested in unique and valuable items, this auction promises a diverse selection. To view the full catalogue and register to bid, please visit the Matthews Auction Rooms website.

Small and Whitfield Auctions

October 25, 2025 —

Small & Whitfield Auctions, Adelaide's premier auction house, invites collectors and enthusiasts to participate in their weekly auctions every Monday and Tuesday, starting at 9:30 AM. These events feature a diverse range of items, including fine furniture, collectables, objets d'art, fine jewellery, timepieces, and carpets. Upcoming highlights include exquisite pieces such as 18ct white gold diamond stud earrings, showcasing a total diamond weight of 4.01 carats. For those interested in fine art and antiques, Small & Whitfield Auctions offers a knowledgeable team of specialists ready to assist. Visit their website for more details on upcoming auction dates and featured items.

John Pye Luxury Assets

September 12, 2025 —

John Pye Luxury Assets is set to host an exciting Luxury Watch Auction featuring some of the most sought-after timepieces. Among the highlights are the Patek Philippe Nautilus 5980/1R, known for its nautical charm and mechanical excellence, and the Patek Philippe Nautilus 5711/1R, a stunning rose gold model with a bespoke diamond-set case. Additionally, the auction will showcase the Rolex Sky-Dweller 326933, a sophisticated watch designed for world travelers, complete with dual time functions and a unique diamond-set appearance. These auctions are part of John Pye's ongoing commitment to providing high-end watches, jewelry, fashion, antiques, and collectibles. For more details or to schedule a viewing, interested bidders can reach out via email or phone. Be sure to check their website for the latest auction dates and offerings.

South Gate Auction Rooms

October 25, 2025 —

South Gate Auction Rooms is set to host an exciting auction on October 27, 2025, starting at 1 PM. This event will feature a diverse array of items, including an 18ct white gold pear-shaped diamond ring with a central stone of 1.15ct, estimated to fetch between £1,000 and £2,000. Other highlights include a collection of 9ct gold brooches, a silver verge fusee pocket watch, and various gold jewelry pieces, all with competitive guide prices. Looking ahead, mark your calendars for a special sale of collectables and fine art on December 8, 2025, which will be available both live and online. For those interested in participating, bidding can be done online, over the phone, or in person at the auction house. South Gate Auction Rooms continues to attract a global audience, making it a premier destination for both buyers and sellers. For more information and to view upcoming auction details, visit their website.

Dawson's Auctioneers

October 25, 2025 —

Dawson's Auctioneers is set to host several exciting auctions in the coming weeks. On October 28, 2025, a Vintage Star Wars Collection will be featured, showcasing rare items with estimates ranging from £2,200 to £3,000. Following this, the "As Seen on Screen" auction on October 29, 2025, will present unique pieces, including a large 'Flying Lady' sculpture estimated at £1,000 to £1,500. Looking ahead to November, the Fine Jewellery, Watches & Silver auction on November 20, 2025, will include exquisite items such as a Victorian sapphire and diamond hinged bangle estimated at £2,000 to £3,000 and a Patek Philippe Gentleman's Platinum Calatrava with an estimate of £20,000 to £25,000. Additionally, the Fine Pictures, Prints & Sculptures auction is scheduled for November 28, 2025, featuring works by notable artists like Fernando Amorsolo, with estimates reaching £30,000. For more details on these auctions and to view the catalogues, visit Dawson's Auctioneers' website.

Alnwick Auctions

October 19, 2025 —

Alnwick Auctions is set to host several exciting auctions in the coming days. On October 21, 2025, at 10:30 AM, the auction will feature a variety of pens, including brands like Montblanc, Parker, and Sheaffer, alongside gold, silver, and luxury items from Rolex and Tiffany. Following this, on October 23, 2025, at 10:30 AM, bidders can look forward to an auction showcasing gold, silver, diamonds, and watches from renowned brands such as Omega, Longines, and Cartier. Additionally, on October 28, 2025, at 10:30 AM, another auction will present a selection of gold, silver, and diamond items, including pieces from Rolex and Tudor. Finally, on October 30, 2025, at 10:30 AM, the auction will include gold, silver, jewelry, coins, watches, and medals. For more details and to view the full catalogues, visit the Alnwick Auctions website.

PropertyRoom.com (San Diego)

September 12, 2025 —

PropertyRoom.com in San Diego is hosting a variety of exciting online auctions featuring a wide range of items. Starting September 12, 2025, bidders can explore auctions for jewelry, electronics, vehicles, coins, fashion, and fine art. Notable items include a 14K diamond tourmaline ring, an Apple iPhone 14 Pro Max, and a Chanel tote bag, all available at competitive starting prices. For those interested in vehicles, there are several used cars up for bid, including a 2016 GMC Savana and a 2018 Chevrolet Cruze. Additionally, collectors can find unique coins and bullion, such as a 1884 Carson City Mint coin and various proof sets. With most auctions starting at just $1, PropertyRoom.com offers a fun and accessible way to find great deals while supporting community initiatives. For more details on upcoming auctions, visit their website and register to start bidding.

Bidsquare Auctions

October 19, 2025 —

Bidsquare Auctions is hosting several exciting events in the coming days. On October 19, 2025, the Curated Rug Auction by Nazmiyal Auctions will feature a stunning collection of rare and exceptional rugs, all offered at no reserve. Concurrently, the Connoisseurs & Collectors Auction by Fine Estate, Inc. will showcase a variety of fine collectibles. Following that, on October 21, 2025, Brunk Auctions will kick off their Premier Autumn Auction, featuring a life portrait of George Washington and a selection of rare jewelry, including a 4.8 ct. Marquise Diamond Pendant. Robinhood Auctions will also present The Contemporary Edit, highlighting modern and contemporary artworks. On October 22, 2025, Nye & Company will hold their Chic & Antique Auction, featuring a diverse range of historic furniture and fine art. For more details on these auctions and to explore additional upcoming events, visit Bidsquare's website.

Franklin Browns Limited

September 12, 2025 —

Franklin Browns Limited, a renowned auction house based in Edinburgh, has an exciting lineup of auctions coming up. On September 30, 2025, they will host a sale featuring a diverse range of items, including antiques, fine art, and collectibles. Among the highlights are exquisite pieces such as a late 19th/early 20th-century diamond flower head brooch and a stunning mid-century Aubusson tapestry by Robert Wogensky. The auction promises to showcase the quality and professionalism that Franklin Browns is known for, ensuring an enjoyable experience for both buyers and sellers. For those interested in unique antiques and art, be sure to check their website for more details on upcoming auctions and to view the full catalogue.

Kodner Galleries

September 12, 2025 —

Highlights include a stunning Loetz Art Glass Vase, a Roman Glass Amphoriskos, and a unique Roman Glass Core Formed Medicine Bottle. Additionally, bidders can look forward to exquisite pieces such as a 14K Man's Bracelet, a Hermes Haut a Courroies Hac 55 Bag, and a Gucci Monogram Duffle Bag. A standout item is the magnificent Graff/GIA 21.99ct Diamond Ring, alongside works by renowned artists like Jean Dufy and Loris Marazzi. For those interested in future auctions, Kodner Galleries offers a variety of online bidding options and encourages potential bidders to check their website for upcoming dates and details.

Charterhouse Auction

October 25, 2025 —

Charterhouse Auction is set to host a series of exciting auctions in the coming days. The first is a three-day auction featuring jewellery, silver, watches, Asian art, and antiques, taking place from October 29 to 31, 2025. A standout item in this auction is a stunning diamond solitaire ring, noted for its classic design and brilliance. Following this, a Film and Entertainment Memorabilia Auction will be held on November 3, 2025, offering a unique opportunity for collectors and enthusiasts alike. Additionally, a Pictures, Books & Maps auction, along with Decorative Arts and Mid-century Modern items, is scheduled for late December and early January. For those interested in the world of auctions, Charterhouse offers a diverse range of items, and readers are encouraged to check their website for the latest updates and auction dates.

Gardner Galleries Auctioneers

September 12, 2025 —

Gardner Galleries Auctioneers is hosting several exciting auctions starting September 12, 2025. The Lambeth Estate Auction features quality designer furnishings, a vintage pinball machine, a Seeburg jukebox, and a Howard Miller tall case clock, among other items. Future auctions from this estate will include vehicles and high-end electronics. The Jewellery, Coins & More Auction showcases valuable diamond jewellery, including a 2.00 carat solitaire, along with an extensive selection of gold chains and coins. In the Decorative Arts & Design Auction, collectors can find artwork from a private Ontario collection, including pieces by Lorie Schinko. The Fine Furnishings, Decorative Arts & Collectibles Auction offers a variety of antique and contemporary furniture, art glass, and collectibles. Additionally, the Complete Surveyor Auction features rare scientific instruments and curiosities, while the Audio & Video Equipment Auction includes brands like Sony and Bose. For more details and to participate, visit Gardner Galleries' website.

Kiko Auctioneers

September 12, 2025 —

Kiko Auctioneers has several exciting auctions scheduled for September 12 and 13, 2025. On September 12, a 20-acre farm featuring tractors, a manure tanker, a pump, and a Case loader will be auctioned in Burton, Ohio, starting at 10:30 AM. Additionally, a 15-acre hobby farm in Doylestown, Ohio, will be available at noon. The following day, September 13, an impressive auction will take place for over 80 acres of open and wooded land in Diamond, Ohio, beginning at 10:00 AM. For those interested in unique properties and equipment, Kiko Auctioneers offers a diverse range of auctions. Visit their website for more details on upcoming events and listings.

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