An auction catalog is a catalog that lists items to be sold at an auction which is written and made available well before the auction date. Auction catalogs for rare and expensive items, such as art, jewelry, postage stamps, and antique furniture, are of interest in and of themselves, for they will frequently include detailed descriptions of the items, their provenance, historical significance, photographs, and so forth. In some cases, auction catalogs are key documentation for rare objects that are in private collections, and make up an important part of the libraries of students and dealers of the rarities.

Each entry typically includes a "lot number" identifying each item uniquely, a detailed textual description, and either an estimated price, or a "reserve" price below which the item will not be sold. Photographs may appear with the entry, or grouped into a separate section of the catalog; for mass-produced items like postage stamps, the textual description may be considered sufficient.

As a combined information source and "sales brochure", an auction catalog must tread a fine line between accuracy and promotion. For instance, any damages or flaws must be described exactly, so that buyers cannot be claim to have been deceived, but at the same time the description will typically include words playing down the bad points (as in "brownish spot that does not detract from appearance" or "faint crease, as is common"). Similarly, special characteristics are also called out, such as "one of only four known examples of this type", or perhaps a photograph of an item of jewelry being worn by a famous person.

Auction catalogs may be sent gratis to favored customers, but the better catalogs will cost, sometimes as much or more than a regular book. These kinds of catalogs may in turn be sold by bookstores, or even appear as items in book auctions.

Some time after the auction is concluded, recipients of the auction catalogs will receive a "prices realized"

Bidz.com Brand Name & Jewelry Auctions - Live | Rings, Watches ...

Find authentic brand name jewelry, watches, & more at Bidz.com. Stunning jewelry at discount prices - sign up and make a bid online.

...

Jewelry auctions at Bid4Assets.com

Jewelry auctions – bracelets, earrings, necklaces, rings, watches and more. Hundreds of $1 minimum bid, No Reserve auctions

...

Jewelry Auction | Modern Precious Stone Diamond Ring | Sale ...

Jewelry auctions typically feature modern and period jewels, signed and unsigned, and a variety of precious stones in which you can view, register, and bid online at Christie's.

...

Antique & Contemporary Jewelry Auctions: Bonhams

Antique & Contemporary Jewelry Auctions department specialises in auctions, valuations / appraisals of Fine Antique Jewelry.

...

Rago Arts and Auction Center > Auctions > Jewelry

Rago Arts and Auction Center - Stickley and Modern furniture; Rookwood, Fine Art, Art Glass, Roseville. Free appraisals. As seen on the Antique Roadshow.

...

Jewelry Auctions @ BIDZ.com !!!

Auctions start at $1.00 with no minimum reserve!!! Your perfect gift / present solution. Jewelry, Gems & Diamonds, Antiques, Art, Autos, Coins, Electronics, Fashion ...

...

Jewelry Auctions & Auctioneers

Jewelry Auctioneers - AuctionGuide.com - The Auction Guide - Auctions & Auctioneers Worldwide

...

Jewelry - uBid.com Online Auctions

Buy loose gemstones, wedding bands, diamond jewelry, bracelets, men’s and women’s fine quality jewelry at uBid.com’s online auctions.

...

Online Auction Safety Tips - Buying Jewelry from Online Auctions ...

It's fun to participate in online auctions, but buying jewelry sight unseen from a total stranger can be risky. Here are some tips to help you determine which jewelry and sellers ...

...

Samsclub.com Auctions -

Shop SAM’S CLUB Jewelry auctions for great deals on diamond rings, necklaces, gold and silver designer jewelry, gemstones and watches for men and women.

...