Diamond Auctions

Sworders Fine Art Auctioneers is holding upcoming auctions including Fine Interiors on September 15, 2026, Jewellery on September 23, 2026, and Modern and Contemporary Art, to include The James Birch Collection, on October 6-7, 2026. The Glass Sale is scheduled for October 13, 2026.

Bruun Rasmussen is holding valuation tours in Vestkysten from September 14–16, 2026, and in Central Jutland and Copenhagen/Frederiksberg from October 5–7, 2026. A valuation day is scheduled for September 24 at Kunsten Museum of Modern Art Aalborg, and another on October 6 at the Royal Danish Yacht Club. Additional valuation days will take place on October 31 in Aarhus and Lyngby.

Federal Auction Service is holding a Fine Jewellery & Watch Auction on Sunday, September 20, 2026, featuring items such as a GIA Certified 2.30ct Oval Cut 'Internally Flawless' Fancy Yellow Diamond Ring, an 18k Yellow Gold 11.06ct (TDW) Diamond Tennis Necklace, a 14k Yellow Gold 6.14ct (TDW) Diamond Tennis Bracelet, and various Rolex and Breitling watches.

Dawson's Auctioneers is holding auctions on September 24, 2026, featuring Fine Jewellery, Watches & Silver, including a Rolex Lady-Datejust and a multicoloured diamond-set necklace, and on September 30, 2026, with Fine Pictures, Prints & Sculptures, including works by Attributed to Ippolito Leoni and Mark Coreth. Further auctions are scheduled for October 22, 2026 (Fine Jewellery, Watches & Silver) and October 29, 2026 (Dawsons Discovery).

Leading Online Auction Site is holding several auctions on September 16, 2026, including an online-only "ABC: Estate Finds, Day 1 of 3" auction, a "Rare Books, Coins, Book Related Art & Autographs" auction, an "Exquisite Diamond Layouts & Large GIA Graded Diamonds" timed auction, a "LOW PREMIUM GOLD, SILVER & RARE COIN AUCTION," and a "Coins and Estates Auction." Additional auctions are scheduled for September 17, 2026, featuring "ABC: Estate Finds, Day 2 of 3," an "Autumn Auction of Luxury Antique Watches, Jewelry and Fine Art And Decor," "September 2026: Day One," "Fall Heirlooms: Fine Estate Jewelry & Signed Treasures," "ANTIQUES: PERFECT FOR A THROWBACK THURSDAY," "Affordable Modern & Contemporary Art," "Fine & Decorative Arts Online Auction #139," and a "September Thursday Discovery Auction." On September 18, 2026, there will be "ABC: Estate Finds & Books, Day 3 of 3," "September 2026: Day Two," an "Autographs, Sports, Trains, Cards, & Collectibles Auction," a "Fine General Antiques" auction, "The Jewelry & Watch Collection," "September Fine Art & Antiques," "Antique Kingdom September Auction," "5 Star Auctions Summer Collection," "September Auction + A Quality Collection Of Antiques & Fine Arts!," and a "Vintage & Antiqure Toys Part 2." September 19, 2026, will host a "Rare Currency, Coin, Art and Jewelry Event," "Raynors HCA Part I," the "TavernTrove's September 2026 Beer Can & Breweriana Auction," and the "Jackson Hole QuickDraw Auction 2026."

Fortuna Auction is holding a timed auction that opened on September 17, 2026, featuring fine jewelry, watches, and luxury accessories, including an Hermès Collier de Chien diamond bracelet and Cartier Double C diamond earrings. An additional sale opens on September 27, 2026, with details to be announced.

Auction Nation's upcoming auctions include a General Merchandise Auction on September 18th, followed by a Furniture Auction and Kitchen and Bathroom Auction on September 18th and 19th. On September 20th, there will be an Estate Gold, Diamonds & Sterling Silver Jewelry Auction, a Bullion, Collectible Coin and Currency Auction, a Furniture and Mattress Auction, a Military Gear Auction, a Furniture and Kitchen and Bathroom Auction, another Kitchen and Bathroom Auction, a General Merchandise Auction, and a Huge Knife Liquidation Auction. Finally, a Furniture Auction is scheduled for September 21st.

Kodner Galleries is holding an auction on Wednesday, September 23rd, featuring estate jewelry, art and collectibles including works by Jean-Paul Riopelle, Goffredo Reggiani, Francisco Narvaez, Jose Antonio, Oswaldo Vigas, and Fernando De Szyszlo, as well as an Audemars Piguet Royal Oak watch, a diamond and 18K bracelet, RAAK (Co.) Mid-century Cantharel lamps, bird lamps by José Esteves, and Milo Baughman dining chairs.

Specializes in gold, diamonds, vintage jewelry, old photographs, vintage cars, high-end art, collectibles, first edition books, vinyl, designer clothing, and ephemera.

Features auctions through Sotheby's for fine art, diamonds, wine, and motor cars.

Auction House Spotlight: Preziosi Auctions Preziosi Auctions specializes in curated online auctions featuring jewellery, art, watches, and luxury items. Their platform offers expert knowledge and exceptional objects for discerning collectors. Current highlights include an exquisite Emerald and Diamonds Ring, with bidding closing on September 16, 2026. Browse their catalogue and register to participate in upcoming sales.

Argus Auctions is holding an online auction of unreserved luxury watches and handbags ending Monday, September 21st at 7 PM (AEST). Upcoming auctions include a kids cubby house retailer liquidation and a lab-grown diamonds & jewellery sale, both ending Wednesday, September 23rd. A low-hour Cat loaders, new generators, machinery & containers auction concludes Thursday, September 24th, followed by a 14-person remote accommodation camp and a portable building & container clearance on Friday, September 25th. A drilling contractor liquidation featuring vehicles, machinery & equipment ends Friday, October 2nd.

Walker Auctions is holding auctions on September 21 for Sterling, Nice Furniture, Rugs, Tiffany Fine China, Tiffany Crystal, and HOYA Fine Crystal; on September 22 for 14K and 10K jewelry, Quality Furniture, Bordallo Pinheiro, Gail Pittman, Franciscan Earthenware, and Roosters; on September 24 for Art, Antique Furniture, Rugs, Glass, and Unique Vintage Collectibles; on September 27 for a JD Lawn Tractor, Tri-Fuel Generator, Antique Furniture, Tools, and Costume Jewelry; on September 28 for Tiffany, David Yurman, Cartier, Diamonds, and Sterling Silver Fine Jewelry; and on September 29 for a 2 Bed 2 Bath Memphis Townhouse. On October 1, there will be an auction for a Springfield Area Meat Processing Plant and its equipment.

Valorum specializes in auctions of gold, silver, and diamonds, with a particular focus on luxury watches and accessories. The house also offers a wide selection of gold and silver bars for investors.

Richard Winterton Auctioneers Ltd is holding an Antique & Home Sale on September 21, 2026, featuring garden effects, tools, electricals, furniture, furnishings, jewellery, watches, coins, silver, pictures, ceramics, glass, and household miscellaneous items. An additional Toys & Trains Sale is scheduled for September 23, 2026, with items including Dinky, Corgi, Airfix, Hornby, and OO Gauge items. Another Antique & Home Sale will take place on September 28, 2026.

Able Auctions is holding several auctions on Tuesday, September 15, 2026, including Consumer Goods and Vancouver Business/Office Closure. Upcoming auctions include Set Dec and Richmond Wood Shop Closure on Wednesday, September 16, 2026; Police Recovery/Estate Jewelry on Saturday, September 19, 2026; First Nations Artwork, Jewelry, and a Huge Barbie Doll collection on Tuesday, September 22, 2026; and Vehicle & Impound, Foam Cutting & Fiber Filling Equipment, Event Rental Company & Restaurant, and Heavy Industrial auctions on Wednesday, September 23, 2026. Further auctions include Pipeline Inspection/Maintenance Co. Closure and Janitorial Supply on Thursday, September 24, 2026; Delta Stone/Countertop and Vehicle auctions on Tuesday, September 29, 2026; Home Appliance & Outdoor Product and Fitness/Gym Equipment on Saturday, October 3, 2026; and Office Furniture & Equipment on Wednesday, October 7, 2026.

Michael Spooner Auctions is holding an auction closing on Tuesday, September 15, 2026, with pickup available the same day.

Hotlotz is holding auctions for Luxury Handbags & Accessories and Fine Jewellery, Part One, both open for bidding. Upcoming sales include Peranakan & Associated Works of Art, Designer & Luxury Fashion - September, and Fine Silver: The Esme Parish Collection, all with catalogues released on September 15 or September 22. Asian Ceramics & Works of Art - October will have its catalogue released on September 29.

Huber Auction Group LLC is holding two online-only auctions that conclude on September 15, 2026: one for used, scratch & dent washers, dryers, refrigerators, and freezers, and another for everyday essentials.

Austin Auction Gallery is holding a Premier Auction Event from September 25–27, 2026, featuring fine art, antiques, jewelry, furniture, and estate property.

Ellis Willis & Beckett is holding a timed online auction of Antiques and Collectibles from August 23rd until September 6th, and a valuation day at Dunston Hall on September 1st.