One of the most common questions people ask before visiting a coin shop is, “What are they actually doing when they look at my coin?” It’s a fair question. The process can look like a quick glance to an outside observer, but a trained buyer is checking several things at once. Here’s a walkthrough of how coin evaluation typically works at a Greenville coin shop like American Gold Buyers on Woodruff Road.
Step 1: Sorting
The first thing that happens with any group of coins is sorting. Coins get separated into broad categories before anything is priced:
- U.S. silver coins (pre-1965 dimes, quarters, halves, plus 40% silver halves from 1965 to 1970)
- Gold coins (U.S. and foreign)
- Modern bullion (American Eagles, Maple Leafs, Krugerrands, generic rounds and bars)
- Numismatic or collectible coins (key dates, proof sets, graded coins)
- Common circulated coins (wheat cents, buffalo nickels, common-date silver)
- Foreign or world coins
This sort happens fast because experienced buyers recognize categories at a glance. It’s not a judgment of what’s “good” or “bad” — it just groups items so each one can be evaluated against the right benchmark.
Step 2: Identifying What’s Actually There
Once sorted, each piece gets identified more precisely. For a silver dollar, that means checking the date, mint mark, and condition. For a gold coin, it means confirming the type (Liberty, Saint-Gaudens, Indian Head), the year, and the mint. For graded coins in plastic slabs, it means reading the certification number and grade.
Tools used during this step typically include a jeweler’s loupe (usually 10x magnification), a digital scale accurate to 0.01 grams, calipers for measuring diameter and thickness, and reference guides for identifying varieties.
Step 3: Authenticating
Authentication is a quiet step that happens almost automatically with experience, but it matters. Counterfeit gold and silver coins exist, and so do altered coins (where a date or mint mark has been changed to mimic a rarer variety). Buyers check:
- Weight against published specifications
- Diameter and thickness
- Edge details (reeding count, lettering)
- Surface characteristics under magnification
- Magnetic response (gold and silver are non-magnetic)
For higher-value pieces, a Sigma Metalytics tester or X-ray fluorescence (XRF) analyzer may be used to confirm metal content non-destructively.
Step 4: Determining Value Category
Every coin falls into one of two value categories, and sometimes both:
Melt value is what the coin is worth based purely on its precious metal content at current spot prices. A pre-1965 90% silver quarter contains about 0.1808 troy ounces of silver. Multiply that by the current silver spot price, and you have its melt value.
Numismatic value is what collectors will pay above melt because of rarity, condition, or demand. A 1932-D Washington quarter in collectible condition is worth far more than its silver content. A common 1964 Washington quarter trades at melt.
The buyer’s job is to recognize which coins are pure melt, which carry numismatic value, and what reference prices apply.
Step 5: Checking Current Prices
Spot prices for gold, silver, and platinum change every few seconds during market hours. A coin shop will pull live prices when making an offer. Numismatic values come from published guides — the PCGS price guide, the NGC price guide, and the “Greysheet” (Coin Dealer Newsletter) are the most commonly referenced.
Step 6: Making the Offer
Once everything is sorted, identified, and priced, the buyer presents an offer. A reasonable shop will explain the breakdown — how much is being offered for the silver coins as a group, what the gold coin is being valued at, what the graded coin is worth, and so on. You should always feel free to ask questions about any line item.
Common Questions During Evaluation
“Why is this coin worth less than what I read online?” Online prices often reflect retail prices (what a customer pays a dealer) rather than wholesale prices (what a dealer pays a seller). The difference is the margin that keeps the shop’s lights on.
“Should I clean my coins before bringing them in?” No. Cleaning a coin almost always reduces its value, sometimes significantly. Buyers want to see coins in their original state.
“Can I watch the evaluation?” Yes. At American Gold Buyers, the entire process happens at the counter in front of you. Nothing goes in the back.
Visit American Gold Buyers in Greenville
American Gold Buyers is at 1178 Woodruff Road in Greenville, SC. Walk-ins welcome for evaluations of coins, bullion, and estate collections of any size.
