How to Price Antiques for Estate Sales: A Practical Guide to High-Value Items

2025-02-05 by PriceLens Team

Antiques are the most high-stakes part of any estate sale. A correctly priced Georgian silver tea service or signed Stickley sideboard can make a sale. An incorrectly priced one — in either direction — can damage your reputation with clients and buyers alike.

This guide covers the practical skills estate sale operators need to price antiques confidently, even in categories where they're not specialists.

The Core Challenge: You Can't Be an Expert in Everything

A single estate might contain Victorian jewelry, Art Deco furniture, 1950s studio pottery, signed lithographs, and Civil War memorabilia. No one is an expert in all of these. The question isn't how to know everything — it's how to research fast enough and recognize when you need outside help.

The Research Stack for Antique Pricing

For any antique you suspect might be valuable, work through these research sources in order of reliability:

1. Sold auction results

Auction records are the gold standard for antique pricing because they represent actual transactions between motivated buyers and multiple bidders.

Best sources:

• LiveAuctioneers: Search millions of past auction results with photos
• Invaluable: Broad coverage, good search filters
• Christie's, Sotheby's, Bonhams: For high-end pieces, search their own archives

2. Dealer asking prices (with a discount)

Dealers on 1stDibs, Chairish, and Antique Artisan price items for maximum retail margin — expect 2-3x what you'd price at an estate sale. But these listings are useful for:

• Confirming something is worth researching further
• Understanding how dealers describe and market similar pieces
• Getting a ceiling for your pricing

3. WorthPoint

WorthPoint maintains a database of millions of sold prices specifically for antiques and collectibles. It costs about $30/month but pays for itself quickly when you're regularly pricing antiques. Good for marks, patterns, and manufacturer histories.

4. Specialist consultation

Some items require a specialist's eye. Know when to call one:

• Unsigned paintings that might be attributable to a known artist
• Jewelry with large stones or unusual pieces
• Furniture with unclear provenance that might be exceptionally valuable
• Documents, manuscripts, or signed items where authentication matters

Antique Furniture: What to Look For

Furniture is the backbone of most estate sales. Here's a quick triage framework:

Signs a piece deserves research:

• Solid wood construction (not particle board or MDF)
• Dovetail joints (hand-cut or machine-cut)
• Maker's marks, labels, or stamps underneath or inside drawers
• Period hardware (check if original or replaced)
• Unusual or high-quality materials (tiger maple, burl walnut, satinwood)
• Distinctive stylistic elements: Mission/Arts and Crafts, Art Nouveau, Art Deco, mid-century modern

Condition factors that reduce value significantly:

• Stripped or refinished surfaces on period pieces
• Missing hardware (especially if unusual)
• Structural damage (broken joints, missing veneer)
• Water damage or warping

Jewelry and Watches: Authentication First

Never price jewelry without checking for marks. In most cases, the mark tells you more than visual inspection.

Gold marks: 10k, 14k, 18k, 750, 585, 417 — indicates karat and gold content Silver marks: Sterling, 925, 800 — indicates silver content; additional hallmarks can indicate country and date Platinum marks: PT950, PT900, 950Plat

Unsigned pieces may still have significant gemstone value — a diamond ring without a designer name is still worth its stone value.

Watches: Brand and model number are everything. A Rolex Submariner and a Seiko automatic are both watches, but one might be worth