Bullion coins are bought primarily for their metal content and their value tracks spot price. Collector coins, or numismatic coins, carry value based on rarity, condition, and historical significance, often well above melt value. Some coins are both: a rare date in a popular bullion series can carry a numismatic premium on top of its metal value.

BU stands for Brilliant Uncirculated, meaning a coin that has never been used as currency and retains its original mint luster. Proof coins are struck multiple times with specially polished dies to produce a sharp, mirror-like finish. Proofs are generally produced in lower quantities and carry higher premiums, making them more collectible than investment-grade.

Junk silver refers to pre-1965 U.S. coins including dimes, quarters, and half dollars that contain 90% silver. Despite the name, they're a legitimate and accessible way to buy silver close to spot price. They're popular with stackers who want fractional silver without paying high premiums.

A cull coin is one that has been heavily circulated, damaged, or otherwise falls below the minimum grade standard for a given product. Culls are typically sold at a discount to spot and are best suited for buyers who want metal content over appearance. They're not ideal for collectors but can work for budget-conscious stackers.

It can. Government-minted coins issued by sovereign mints like the U.S. Mint, Royal Canadian Mint, or Perth Mint are universally recognized and easy to resell. Private mint coins and rounds may carry lower premiums but can be harder to move in certain markets. For newer buyers, sticking with sovereign mint products is generally the safer starting point.

Coins are legal tender issued by a government mint. Rounds are privately minted and carry no face value, produced purely as a way to buy silver or gold close to spot. Rounds often come in the same weights and purities as coins but typically trade at lower premiums and have a narrower resale market.

Reputable dealers sell authenticated products, so buying from a trusted source is your first line of defense. Beyond that, weight and diameter testing are the most reliable at-home checks since counterfeit coins almost always fail one or both. For high-value numismatic purchases, third-party grading and authentication through services like PCGS or NGC adds an additional layer of confidence.

Avoid touching coins directly since skin oils can cause long-term damage. Store in proper coin holders, flips, or slabs rather than loose in boxes. For bullion-heavy collections, a home safe or bank safety deposit box works well. For high-value numismatic collections, climate-controlled storage and insurance are worth considering.