Can you verify a sports jewelry piece I already own?

Yes. We are a family-run store, so message us and we will tell you what to look for, and for pieces bought from us we stand behind the metal and the licensing. If you are shopping elsewhere, ask the seller to state the karat and name the licensed maker in writing before you buy.

What Jewelers Look for When Authenticating Collegiate and Professional Sports Jewelry

Q: How can I tell if a team pendant is real solid gold?

Look for a karat hallmark stamped in the metal: 10K, 14K, or 18K for gold, or 925 for sterling silver. Marks like GP, GF, or 1/20 12K mean plated or gold-filled, not solid. Solid gold also feels dense for its size and keeps the same color at the worn edges, where plating rubs through.

Q: Is a hallmark or karat stamp enough proof by itself?

It is the fastest check but not the final word, because stamps can be faked. Jewelers confirm with weight, color that goes all the way through, and, when it matters, a professional acid or electronic gold test. Buying from a store that names the karat and licensed maker and stands behind the metal is the simplest safeguard.

A jeweler's loupe over a solid gold collegiate team pendant, checking the karat hallmark and officially licensed maker's mark

The short answer: a jeweler checks three things first — a karat hallmark stamped in the metal (10K, 14K, or 925 for sterling), an officially licensed maker's mark identifying the licensed manufacturer, and the metal's real weight and color. Genuine officially licensed solid-gold sports jewelry carries all three; plated knockoffs fail at least one.

“Gold” team jewelry is everywhere online, and a lot of it isn't gold at all. When a piece shows up at our bench — or when a customer asks whether the pendant they saw is the real thing — we run through the same short checklist every time. Here's exactly what jewelers look at, so you can spot genuine officially licensed solid-gold sports jewelry before you buy.

Why authentication matters more for sports jewelry

Team jewelry sits in a tricky spot. It's emotional (it marks a signing day, a championship, a favorite school), it's often bought online sight-unseen, and it involves two separate promises: that the metal is what the seller says, and that the logo is officially licensed rather than a copied mark. A plated pendant with an unlicensed logo can look great in a photo and fall apart — both physically and legally — within a season. Knowing what a jeweler checks protects your money and makes sure the keepsake actually lasts.

Check one: the karat hallmark

The first thing a jeweler does is look for the karat stamp. On solid gold it reads 10K, 14K, 18K (or the European “417,” “585,” “750”); on sterling silver it reads 925 or “Sterling.” That tiny stamp — called a hallmark — is the metal's signature, and it's the fastest way to separate solid gold from plating. If you want the background on how these marks work, the overview of a hallmark explains the system jewelers rely on.

What raises a jeweler's eyebrow:

“GP,” “GF,” “RGP,” or “1/20 12K” — these mean gold-plated, gold-filled, or rolled-gold-plate. It is not solid gold, even though the listing may just say “gold.”
No stamp at all — on a piece sold as gold, a missing karat mark is a red flag in the United States.
A stamp that doesn't match the price — a “14K” team pendant selling for $30 is telling you something.

Check two: the licensed maker's mark

Here's the part unique to sports jewelry. Legitimate collegiate and professional pieces are made by officially licensed manufacturers, and those makers stamp or tag their work. Our collegiate pendants come from LogoArt, the officially NCAA-licensed maker, so the logo, letters, and mascot are the real, approved marks — not a copy someone traced.

A jeweler (or a careful buyer) verifies licensing by looking for the manufacturer's mark, checking that the seller names the licensed maker outright, and confirming the logo matches the school's or league's official trademark exactly. An unlicensed logo isn't just lower quality — selling counterfeit team marks is a trademark violation, which is why reputable stores only carry licensed product. If a listing won't say who made the piece or dodges the word “licensed,” treat that as your answer.

Check three: the metal itself — weight, color, and testing

Stamps can be faked, so a jeweler confirms with the metal itself:

Weight and heft

Solid gold is dense. Pick up a solid 10K or 14K pendant and it has a reassuring weight for its size; a hollow or plated piece feels suspiciously light. It's not proof on its own, but it's the first tactile tell.

Color that goes all the way through

Plating wears at the edges and high-touch spots, revealing a different-colored base metal underneath. On solid gold, the color is the same everywhere because the whole piece is that alloy. Rose, yellow, and white gold are all real gold blended with different alloy metals, which is why they look so different — solid throughout, not a coating.

Acid or electronic testing

When it matters, a jeweler confirms karat with a professional acid test or an electronic gold tester on an inconspicuous spot. It's the definitive check, and it's why buying from a store that stands behind its metal beats gambling on an anonymous marketplace listing.

Check four: logo accuracy and craftsmanship

Officially licensed pieces are struck from approved dies, so the details are crisp: clean letter edges, correctly proportioned mascots, and smooth, even finishes. Counterfeits tend to show soft or blurry details, slightly wrong proportions, rough casting seams, or colors that don't match the official palette. Hold the piece next to the school's or team's official logo — a genuine piece matches; a knockoff is “close, but off.”

Genuine officially licensed solid-gold pieces we stock

Everything below is solid 10K gold — never plated — officially licensed through LogoArt, and in stock as of this writing. Prices are shown at the time of writing; solid gold moves with the gold market.

10K Yellow Gold Vanderbilt University Small Pendant — about $157. The most budget-friendly solid-gold pick here.
10K Yellow Gold Tulane University Small Pendant — about $261.
10K White Gold Old Dominion University Small Pendant — about $340.
10K White Gold The Ohio State University Small Pendant — about $349.
10K Yellow Gold Iowa State University Small Pendant — about $357.
10K White Gold Jacksonville State University Small Pendant with 18-Inch Necklace — about $877, chain included — the ready-to-wear heirloom option.

Don't see the school or team? Message us — LogoArt covers hundreds of universities, and we can order almost any officially licensed piece. Browse more in our Pendants & Charms collection, our Sports collection, or pair a pendant with a chain from our Necklaces collection.

One more layer: documentation and the seller

Beyond the piece itself, a jeweler considers the paper trail. U.S. sellers are bound by the FTC Jewelry Guides (16 CFR Part 23) on how gold and silver content may be described, so a reputable store states the karat plainly, names the licensed maker, and stands behind the metal if you ever want it verified. A listing that hides all three is the real red flag — more than any single stamp.

Frequently asked questions

How can I tell if a team pendant is real solid gold?

Look for a karat hallmark stamped in the metal — 10K, 14K, or 18K for gold, or 925 for sterling silver. Marks like “GP,” “GF,” or “1/20 12K” mean plated or gold-filled, not solid. Solid gold also feels dense for its size and keeps the same color at the worn edges, where plating rubs through.

What does “officially licensed” actually mean for sports jewelry?

It means the piece was made by a manufacturer the school or league authorized to reproduce its logo and marks. Our collegiate pendants are officially NCAA-licensed through LogoArt, so the logos, letters, and mascots are the approved trademarks — not copied or altered. Unlicensed team logos are counterfeit and often lower quality.

Is a hallmark or karat stamp enough proof by itself?

It's the fastest check but not the final word, because stamps can be faked. Jewelers confirm with weight, color that goes all the way through, and, when it matters, a professional acid or electronic gold test. Buying from a store that names the karat and licensed maker and stands behind the metal is the simplest safeguard.

Why is plated team jewelry a problem if it looks the same?

Plating is a thin gold coating over base metal that wears through with everyday, game-day handling — often within a season — exposing a different-colored metal and sometimes irritating skin. Solid 10K or 14K gold is the same alloy throughout, so it holds up for decades and can become an heirloom. It also holds real value in a way plating never does.

Can you verify a piece I already own?

We're a family-run store, so yes — message us and we'll tell you what to look for, and for pieces bought from us we stand behind the metal and the licensing. If you're shopping elsewhere, ask the seller to state the karat and name the licensed maker in writing before you buy.

Jewelry by Sweet Pea is a family-run fine jewelry store. Every piece is solid 10K or 14K gold or sterling silver — never plated — sourced from U.S. wholesalers and shipped from the USA. Browse our Pendants & Charms collection or ask us anything before you buy.