Blog
Guides on valuing antiques, coins, jewelry, watches, and collectibles.
Gold & Silver Price Per Gram Today — Live Prices by Karat
Live gold and silver prices per gram, updated daily. See exact melt values for 10K, 14K, 18K, 22K, and 24K gold plus sterling silver.
2 min read
WorthLens.ai on Mobile: Instant AI Appraisals from Your Phone
WorthLens.ai works fully on mobile — no app store, no download. Add it to your home screen in seconds and appraise items anywhere with your camera.
6 min read
5 Common Mistakes When Selling Jewelry at Auction (And How to Avoid Them)
Selling jewelry at auction can net you far less than expected if you skip these critical steps. Learn the 5 most costly mistakes and how to avoid them.
12 min read
EU Cross-Border Arbitrage: Buy Cheap in One Country, Sell High in Another
The same silver brooch can cost €8 at a Polish flea market and sell for €120 on a French auction platform. Here's how EU arbitrage works — and how to profit from it.
18 min read
Best Online Auction Sites for Selling Antiques, Jewelry & Collectibles (2026 Comparison)
Not all auction platforms are equal — and the wrong choice can cost you thousands. Here's an honest comparison of the best online auction sites by category, region, and item value.
14 min read
Art as an Investment: How to Buy Paintings That Hold Their Value
Art can outperform stocks — or quietly lose value for decades. This guide shows you how to buy paintings that actually hold and grow their worth.
10 min read
How to Price Antiques and Collectibles on eBay: What Sold Prices Really Tell You
Listing price and sold price are two completely different numbers on eBay. Here's how to find the real market data and use it to price your antiques right.
13 min read
eBay vs. Auction House: Where Should You Sell Your Valuables?
eBay is fast and cheap to list. Auction houses are expert and hands-off. But which gets you more money? The answer depends on what you're selling — and how much.
12 min read
GIA vs. IGI vs. AGS: Which Diamond Certificate Should You Trust?
Not all diamond grading labs measure the same way — and paying for the wrong certificate can cost you thousands. Here's what each lab actually means for your purchase.
10 min read
How AI Is Changing Antique Appraisals
Getting an antique appraised used to mean scheduling appointments and waiting weeks. AI has changed what's possible — and who can access expert-level valuation.
12 min read