Diamonds Auctions

Specializes in fine jewellery and Swiss watches, with a standout Rolex collection spanning Submariner, Daytona Cosmograph, GMT-Master II, Datejust and Day-Date models. Recent results include a GIA-certified 5.07ct fancy yellow diamond ring that sold for $101,000, and a certified 11.58ct oval-cut ruby and diamond pendant necklace that brought $36,000.

Irish jewellery and giftware house Newbridge Silverware leads with its Claddagh range, offering Claddagh bangles, pendants and rings in gold plate, gold and silver plate, and enamel finishes, alongside a silver-plated alphabet pendant. Its catalogue also spans silver plated and stainless steel cutlery, Christmas tree decorations, and diamonds and lab grown diamonds. The site adds a touch of heritage, citing "Since 1934" and a Michael Jackson fashion exhibition.

John Weldon Auctioneers is holding its forthcoming sale on Tuesday 17 November at 2pm, with lots spanning antique and modern diamond jewellery, engagement rings, Irish silver, gold coins, silver bars, Waterford crystal, banknotes and other collectables. Previews run from Saturday 14 to Tuesday 17 November, with the Monday 16 November viewing running 11am to 5pm and the final morning viewing on the 17th from 10:30am to 12:30pm.

Upcoming auctions include a live sale at the War Museum Athens Foyer on Saturday, November 21, 2026, with registration from 5:00 pm and bidding starting at 6:15 pm EET, and a public viewing at the Athens office from Monday, November 9 to Friday, November 20, by appointment. Highlights from the lot list include a Patek Philippe wristwatch estimated at €5,000–€15,000, a Cartier Diamond LOVE Bracelet estimated at €14,000–€20,000, Aristotle Onassis and Maria Callas memorabilia estimated at €1,000–€2,000, and a Franck Muller Special Edition watch estimated at €7,000–€10,000. Selected lots and all jewellery and watches will also be viewable at the War Museum from two hours before the sale begins, and bids can be placed live, online, by max absentee bid, by telephone, or in writing.

Subastas Regent's specializes in 18-karat gold jewelry with natural coral, Australian and Akoya pearls, and certified diamonds, alongside watches, numismatics and decorative objects. Current lots include a vintage 18-karat white gold earring pair set with diamonds and Australian pearls, and a 14-karat white gold ring with a certified 0.40 ct diamond. The house, which sells both through auction and direct sale, describes itself as a family jeweler with a century-long tradition and in-house workshop pieces.

Upcoming auctions include an online-only sale on Sunday, November 22, 2026 at 9:00 AM EST, offering over 600 lots of fine antiques, jewelry, art, and Asian works. Highlights include Lot 10A, a Giuseppe Turconi barrel piano, Lot 135, a Chinese plique-a-jour enamel floral bowl, and a diamond ring of about 2.75 carats, along with a vintage Koch barber chair and rare 7-star American parade flags.

Estate sales, online auctions and a 25,000-square-foot resale and thrift store in Okemos, Michigan, are the core of Kellie's Estate Sales, Auctions & Thrift, which lists collectibles, fine jewelry, furniture, clothing and vintage pieces among its stock. The company also buys gold, sterling silver, diamonds and vintage treasures, and offers collection cataloging and appraisals of fine jewelry, art, firearms and rare coins, with its team citing full-time goldsmiths and GIA-certified jewelers. The firm says it is top rated on two auction sites and draws a large following across Michigan and beyond.

Iain M Smith Auctioneers & Valuers, based near Perth, sells a broad general mix, with recent highlights including a Sheffield silver four-piece tea service, an 18ct gold three-stone diamond ring, and an 18K gold keyless wind chronograph pocket watch. The house's upcoming four-day sale covers garden furniture, stoneware, tools, ceramics, jewellery, antique paintings, rugs and modern and antique furniture. Recent results also included a vintage teak McIntosh Long John sideboard and a box of vinyl records featuring Radiohead, Frank Zappa and the Ramones.

Heatwole Auctions & Affordable Moving LLC runs an old-school weekly auction every Thursday, alongside estate dispersals, storage-unit overdue auctions, and consignment and auto auctions. Its listings span antiques, collectibles, woodworking tools, real estate, vehicles, and personal property, with hardware, plumbing, electrical, and building supplies also among its categories. The house has served the Valley since 1939 and says it will publish hundreds of photos per sale online, and it shows some items on a video screen, such as a diamond ring displayed at 40 inches.

Auktionshaus Mette is holding its 102nd auction as a purely online sale on Sunday, November 29, 2026, with live bidding from 12:00 via lot-tissimo and the-saleroom, and written or telephone bids also accepted in advance. Highlights in the current catalogue include a lapis lazuli jewellery box (lot 371, limit €280), a Lalique "Virginia Peacock" centrepiece (lot 292, limit €180), a Cartier Santos Octagon ladies' watch (lot 245, limit €1,300), a 15.65 ct Colombian emerald cocktail ring (lot 012, limit €2,600), a 1960s Lotos guilloché pendant watch (lot 188, €120), a Meissen "Reicher Drache gelb" tea set (lot 282, €60), a diamond-set gold bracelet attributed to Carl F. Bucherer (lot 055, €7,200), and a limited Graf von Faber-Castell "Pen of the Year 2012" (lot 362, €800).

Das Auktionshaus specializes in jewelry, watches, antiques and paintings, buying and selling as well as offering appraisals. The house highlights gold and silver purchases, watch trading for old and new pieces, and a newly added diamond grading service by a certified diamond and jewelry appraiser, with locations in Wangen, Salzburg and Heerbrugg. The site touts over 100,000 auctioned items and more than 75 years of tradition.

Auktionshaus Jentsch is holding its traditional Christmas auction on 28 November, with viewing from 12:00 and bidding from 14:00, though the source gives no year. Lots include a 4.44ct brilliant, a yellow gold bracelet set with about 3.25ct of diamonds, gold bars and coins, watches from Breitling, Ebel and Glashütte, silver flatware from Georg Jensen, Robbe & Berking and WMF, and a rare Swiss cylinder music box.

Upcoming auctions include no sales within the December 12 window: the only dated event before then is a free expertise session on November 17, while the Grands Vins & Alcools sales (December 27–29), the ARTS PASSION sale of modern and contemporary art and decorative arts (December 30), and the sale of diamonds, signed jewels, high jewelry and prestige watches (December 31) all fall after it.

Monobankオークション specializes in B2B real-time online auctions of pre-owned goods, including jewelry and gemstones (diamond loose stones), watches, brand bags (including Louis Vuitton), and tools, instruments, cameras, and antiques/fine art, with weekly sessions open to bidders worldwide. The house describes its lineage as more than 20 years of auction experience and says its buyers include participants from China, Hong Kong, and the United States. The calendar page is a 2026 auction schedule, with a "MWA returns" notice among its listings.

Holmasto, a Helsinki family firm founded in 1949, sells vintage jewellery, watches, coins and banknotes, and military medals through its international auctions, with watch makers Rolex, Omega and Cartier named among its brands. Its current online lots include coat-of-arms rings for the Gripenberg, von Wright and Aminoff families, alongside a topaz and diamond ring, and the house also buys gold in all forms. The firm, now in its third generation of family ownership, describes its inventory as rotating.

GIMAU Casa de subastas is holding Subasta 817, "susurros de calas," on November 12, 2026, with both in-person and online bidding, and the November 12 sale features jewelry lots including Lote 65 (ángeles earrings, estimated at $7,500–$10,500), Lote 3 (solitaire ring, $5,000–$8,000 MXN), Lote 64 (heart drop earrings, $3,500–$4,500 MXN), and Lote 8 (diamond earrings, $18,000–$28,000).

Sadde Commissaires-Priseurs, operating in Dijon and Chaumont since 1908, handles everything from objets d'art and jewellery to furniture, wines, photographs and militaria, with recent results including a bronze by Armand Petersen (Merle, 1932) sold at 22,000 euros, a Qianlong-period Chinese porcelain vase at 32,000 euros, and a platinum solitaire diamond ring at 13,000 euros. The house describes itself as a fourth-generation family firm conducting roughly 90 sales a year with 13,000 to 15,000 lots presented. Its recent headline results also include a 39,000-euro silver-gilt cup and a 30,000-euro portrait attributed to Jacqueline Marval.

First State Auctions is holding its Hermès & Chanel Exotic Handbags & Exceptional Swiss Watches from a Private Luxury Archive, Fine Jewellery & More sale, closing Sunday 15 November 2026 with 451 lots and a 20% buyer's premium. Featured pieces include a Hermès Birkin 25 in brown ostrich leather (estimate $25,000–$35,000), a Rolex Oyster Perpetual Yacht-Master II (estimate $23,000–$28,000), and a Van Cleef & Arpels Alhambra long necklace (estimate $21,000–$24,000).

Clarks Auction Rooms is holding an auction on October 29, 2026, featuring Jewellery, Collectables, Antiques & Furnishings. An additional auction is scheduled for November 26, 2026, also featuring Jewellery, Collectables, Antiques & Furnishings.

Upcoming auctions include a Sunday 15 November 2026 sale of 3,631 lots, sold to the highest bid, with bidding open from 09:00 to 21:00 GMT. The headline lot is IWC Pilot's Le Petit Prince Chronograph Watch (Lot 639), a 2016 reference IW377714 with a 43mm steel case, offered from a £2,000 opening bid in £10 increments.

Bryant Auction LLC is holding its Lakefront Homes auction on Tuesday, December 1, 2026, at 12:00 PM, offering two lake properties in Rocky Mount and Sunrise Beach, Missouri, in person or online via HiBid. The lineup includes a 4-bedroom, 3.5-bath North Shore fixer-upper with 65 feet of shoreline and a Sunrise Beach split-level home with 154 feet of lakefront plus a separate studio apartment, with open houses scheduled for November 9 and November 11 from 4 to 6 PM.