Quick answer: Solid gold is karat gold all the way through (look for 10k, 14k, 18k, 585, 750). Gold-filled is a thick bonded gold layer that must be 5% of the weight. Vermeil is gold at least 2.5 microns thick over sterling silver. Gold-plated is a thin film over brass or steel with no useful minimum. For a ring, buy solid. For a daily chain or hoop, gold-filled is the value pick. Vermeil is for silver wardrobes. Plated is for looks you will retire.
Solid gold means the visible metal is the same alloy at the core. A 14k chain is 14k in the middle of a link, not a brass wire painted gold. Hollow gold can still be solid gold — “solid” here means composition, not that the tube is filled. Hollow 14k chains are real gold and lighter; they crush if you pinch them. That is a construction warning, not a fake warning.
Solid is the only option that a jeweler can size, solder, retip and melt as gold. It is also the only option with a floor on resale. You pay for that floor at checkout. For small earrings the premium over filled is modest. For a thick bracelet it is the whole price.
Gold-filled: karat-gold sheet, mechanically bonded, ≥ 5% of weight. Stamp 14/20 GF or similar. Brass core. Daily-wear hero for chains and hoops. Filled vs plated is the pairwise version of this.
Vermeil: sterling core, gold layer ≥ 2.5 microns, gold ≥ 10k. Stamp 925 plus a karat. Pricier core, thinner gold than filled in most commercial pieces. Filled vs vermeil covers the fork.
Plated: electroplated film, often under a micron on fashion pieces. Stamp GP, HGE, or none. Photographs identically. Dies first at friction. Useful for experiments, not for 24/7.
This is the shopping table. If a listing cannot place itself in one column, do not buy it.
| Solid gold | Gold-filled | Vermeil | Gold-plated | |
|---|---|---|---|---|
| What you are buying | Karat alloy throughout | Bonded gold skin, 5%+ weight | Gold skin on sterling | Gold film on base metal |
| Hallmarks | 10k 14k 18k 585 750 | 12/20 GF, 14/20 GF | 925 + 10k/14k/18k | GP HGE RGP or none |
| Daily chain | Best, if budget allows | Best value | Good if thick microns | Poor |
| Ring | The only serious choice | Will wear through | Will wear through | Weeks to months |
| Water | Fine except chlorine/hot tubs | Brief showers OK | Cautious | Avoid |
| Repair | Full jeweler toolkit | Limited | Re-plate / silver repair | Re-plate only |
| Melt / resale | Yes | Negligible | Silver scrap | None |
| Typical first price (chain) | Highest | Middle | Middle-high | Lowest |
Never-take-off chain: gold-filled or solid 14k. Sleep-in hoops: same. Engagement-adjacent band: solid 14k or 18k only. Trend earring for a season: plated or a cheap vermeil you will not mourn. Gift you want to look considered in five years: solid or filled, never plated. Gift for someone who already lives in silver: vermeil or solid gold, not brass-core filled that will clash when it wears.
Men’s first chain follows the same grid, with a bias toward solid or filled and toward a thickness that photographs as “a chain” rather than a thread. See first everyday men’s chain.
Solid gold lasts until you lose it or snap a hollow link. Scratches accumulate into a patina you can polish. Gold-filled lasts until abrasion uses up the reservoir — years on a necklace, less on a ring. Vermeil lasts until the microns are gone, then you have a silver piece. Plated lasts until the first honest month of friction, give or take quality.
Re-plating is a service, not a resurrection. You can re-plate a vermeil or plated piece and you will be back in the same cycle. You cannot “re-fill” a gold-filled piece at home. You can replace a filled clasp. Budget that as ownership, not as a scandal.
Listing: the spec line beats the title. Title “14k gold chain” plus spec “14k gold plated brass” is plated. Title “solid 14k” plus weight in grams that makes sense for the length is solid. A 20-inch chain listed as solid 14k that weighs 1 gram is either hollow and hair-fine or a lie.
Drawer: stamps first, then a jeweler. Colour of a worn spot is the folk test — brass yellow, copper pink, silver grey, or more gold. Folk tests fail on PVD steel, which can look perfect and not be gold at all. When money is involved, XRF. Walkthrough of stamps: hallmarks 10k 14k 585 750 GF GP.
Pick one colour (yellow or rose). Pick one everyday construction (solid 14k or gold-filled). Add vermeil only if your other jewelry is silver and you are deliberately bridging. Add plated only with a planned retirement date. The jewelry box that looks expensive in ten years is boringly consistent, not a museum of coatings.
If you already own plated pieces you like, keep wearing them until they fail, then replace that silhouette in filled or solid. Do not throw out working jewelry to satisfy a chart. The chart is for the next dollar, not for a purge.
Hollow 14k is still solid gold as a composition: a tube of 14k. It dents. PVD gold-colour stainless is not gold; it is a vapour-deposited coating that can last a long time and still has zero gold content. Neither belongs as a fifth column in the main table because one is a shape of solid gold and the other is honest costume. Listings mix all of these words to exhaust you.
If a chain is light for its width, you are in hollow or plated-over-hollow. If it is heavy and cheap, you are in brass. If it is heavy and expensive, you might be in solid. Weight plus stamp plus return policy is the only adult filter. An XRF gun is how arguments end.
Give solid or filled in a measured size, or give steel and call it steel. Do not give plated and call it gold. The recipient will learn the chart the hard way at the clasp. For a first gift chain, filled 18-inch or a 20-inch men's chain in documented GF or 14k is enough sentence. See gifts for her and gifts for him.
If you are buying for yourself, pick one column and stay there for a year. Mixed constructions in one stack make the weakest piece look like a verdict on the whole stack. The plated hoop is what people will remember, not the 14k chain next to it.
Q: Is gold-filled the same as solid gold?
A: No. Gold-filled has a real gold skin bonded to brass. Solid gold is gold alloy all the way through. They can look identical when new. Only solid has meaningful melt value and can be resized like gold.
Q: Which is better, gold-filled or vermeil?
A: Gold-filled usually wears longer because the gold layer is thicker. Vermeil has a sterling core, so it remains a precious-metal object if the gold wears off. Pick filled for colour life, vermeil for core metal.
Q: How long does each type last?
A: Solid gold lasts decades to generations. Gold-filled often lasts 10–30 years daily. Vermeil often lasts 1–5 years daily depending on microns. Fashion plating often lasts months.
Q: Can plated jewelry be worn every day?
A: You can, but you are choosing a consumable. Expect colour loss at clasps and rings. Daily wear belongs on filled or solid.
Q: What stamp means solid gold?
A: 10k, 14k, 18k, 585, 750, 417, 375. GF, GP, RGP, HGE, HGP mean coatings. 925 with a gold mention is silver with a gold layer (vermeil or plated).
Q: Is stainless steel gold jewelry a fourth option?
A: PVD-coated stainless can look gold and survive water better than fashion plating. It is not gold. Treat it as durable costume, not as a gold construction.
Q: Which should you buy first?
A: A solid 14k or gold-filled chain plus solid 14k studs or hoops. Skip a plated set of five. One real piece beats a tray of films.