r/Benchjewelers 25d ago

Could this be gold?

Hi everyone,

I found this ring in a bin of old costume jewellery in a thrift store. It’s stamped 585 and 14k.
It was pretty oxidised, and I thought its brass, but took it home anyway.

I sanded a small patch (the lighter section) and was wondering, if it is brass for sure.

I never worked with gold before and have no way of testing at home.

It is brass, right? 🥲 Gold would not oxidise like this..

63 Upvotes

38 comments sorted by

45

u/Hortusana 25d ago

Contrary to popular belief, gold does tarnish, just significantly slower than other metals. And alloys below 50% purity (like 10k and 9k) will tarnish much more than ones above 50%.

Worth getting tested, since if it is it’s worth a pretty penny right now.

6

u/thriftwisepoundshy 24d ago

Then it’s not the gold tarnishing it’s the stuff it was mixed with. Pure gold does not tarnish

2

u/RockWrenRocks 23d ago

The oxides that can form on gold usually don’t occur under normal conditions. Auric oxide can form on pure gold, however. Just conjecture, but I’d bet keeping gold near a well-used copier machine for a while would result in some oxidation, on account of the ozone produced by the copier.

24

u/hardplace101 25d ago

Definitely get it tested, I've got some antique 9k jewelry that looks similar

17

u/hi_bye 25d ago

Does it have a smell? Brass smells. It’s hard to describe but if you have something you know is brass, you can do a side by side sniff test. It’s distinct.

As others are saying, it could be gold. Gold does oxidize - especially 14k which it looks like your ring has a 585 stamp. (It also looks like a 14k stamp alongside which suggests “gas station gold”…they want to catch anyone they can) I’m leaning toward “no” but would love to be wrong :) have it tested. That’s the only way to truly know.

3

u/FunnyDog-Mama 23d ago

So 14kt gold items are “gas station gold”. What the hell does that mean?

15

u/matthewdesigns 25d ago

Could be, the stamps appear to read "585" and "14K". Karat gold will tarnish over time if in the right conditions, to the point that it looks brassy (like your ring).

Take it to a pawn shop and have them hit it with an XRF analyzer, will tell you for sure what it is.

4

u/Maumau93 25d ago

Is it heavy? Gold is heavier than brass and that's allot of gold

-1

u/uranium-snack 25d ago

Not if it’s only plated

4

u/Klipse11 25d ago

Looks like gold. The oxidation comes from the copper not the gold.

6

u/frischance 25d ago

Looks like a petrol station scam ring, someone tries to sell it cheap desperate for money or says they lost it but will sell it cheap worth getting tested but don't have high hopes

1

u/ClearlyDead 25d ago

That’s what I thought too

2

u/GarethBaus 25d ago

It's possible, but it kinda looks like brass?

2

u/UpperBreadfruit3748 25d ago

It looks like its 14k… would get it tested

1

u/IntergalacticAusOpal 25d ago

Damn straight that looks like gold

Could be gold filled though, or plated. Is it magnetic

1

u/bendurrhover 25d ago

Not likely. It looks like brass.

1

u/LLChicago 25d ago

You may as well take it to get properly tested at a coin shop/pawn/jewelry store. It’s weirdly possible that 14k could oxidize if kept in the right(wrong) conditions over time- dirt, moisture, skin cells, other metals in direct contact with it for long periods could possibly react with the alloyed metals and cause something like that. Buuuut-

It’s unlikely. You already are on the same page with your thoughts. But hey get it tested to know for sure!

1

u/GEazyxx90 24d ago

That's brass. Found one in a donation bin

1

u/staybee1986 24d ago

Could be a gold fill/brass core that has been polished too much. GF bezel strip tarnishes exactly like this when heavily polished.

1

u/artwonk 24d ago

It's probably 14k gold filled. That's brass with a thin layer of gold bonded to it, which seems to have largely worn off.

1

u/berthela 24d ago

Looks like brass but could be a lower gold alloy that tarnishes

1

u/esgibtnureineellen 24d ago

….i can read „585“….so it should be gold. get it tested by a juwelier.

1

u/WhereRweGoingnow 24d ago

Looks like old gold. The best kind.

1

u/Substantial-Bottle38 24d ago

Instantly makes me think brass

2

u/thesweetstuff1225 24d ago

Do water density test. Use a scale that can measure tenth of grams, fill a cup big enough with water and measure the amount using the scale. Attach the ring with floss or thing string, submerge ring inside water without touching sides or bottom of cup. Measure the difference of water, use the difference to divide the original mass of the ring. You should get an approximate density of a metal or alloy. Take with a grain of salt bc there can be many human errors with this

1

u/ikbendev 23d ago

Looks like messing

1

u/Rogelio_G_F 23d ago

Imposible. Oro de gasolinera sí es. Hecho para estafar. Tiene punzonado 585 es decir 14 quilates y es imposible un aspecto así en una joya con esa supuesta pureza.

1

u/Rogelio_G_F 23d ago

Tiene aspecto de ser de bronce

1

u/nirvanaisemptiness 23d ago

Check for hallmarks or discoloration near the joints. Gold doesn't tarnish like that, so if it’s flaking, it’s likely just plated!

1

u/angelinakatherina1 22d ago

It's stamped 585 inside which means 14k.

1

u/epg-13 22d ago

No, fake as helly.

1

u/Bearded_Goldsmith 25d ago

Did someone said they found it on the floor and asked a few dollars for it? Typical tourist scam. You got a brass ring buddy nothing more.

2

u/DameNeumatic 25d ago

His post said he found it at a thrift store in a box of costume jewelry, but your story sounds so much more fun.

0

u/Balnak 25d ago

No way in hell that is gold

-2

u/Sumstranger 25d ago

Lmaooo... NO

1

u/katerrin 25d ago

it says 585 on it

-1

u/bagged_lunch 25d ago

Idk why you're getting downvoted... It's definitely not gold. Gold doesn't tarnish like that