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Gold

casull454

Well-known member
Just pondering something and figured the intelligent users here would probably provide a quick answer. Does white gold read higher than yellow gold of the same purity? I'm thinking it would since the white gold is alloyed with silver which is a higher conductor. But, yellow gold is alloyed with copper which is a higher conductor, but not as high as silver. Or is the difference negligible?
 

sprchng

Well-known member
Where are you getting the info on the color/alloy ratios? What you say is logical but my understanding , and it could certainly be wrong , is that an alloy of gold and silver makes the gold more yellow contrary to the logic and alloying gold with copper results in rose gold. Logically both should run at a higher VDI.
 

sprchng

Well-known member
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It appears the slight silver alloy does make gold yellow but as the amount increase the color changes considerably. I found a class ring once that was marked 10k and was a little paler than the normal color and it read a 71 on the Deus1 which was quite high for gold. I normally ran with normalization on the Deus so the frequency would not be an issue on the VDI
 

Listener

Well-known member
Just pondering something and figured the intelligent users here would probably provide a quick answer. Does white gold read higher than yellow gold of the same purity? I'm thinking it would since the white gold is alloyed with silver which is a higher conductor. But, yellow gold is alloyed with copper which is a higher conductor, but not as high as silver. Or is the difference negligible?
The small 14k white gold Ring I found back in February read ferrous 06 on my Manticore.
 

RichW

Well-known member
If you take 2 rings of the same purity and the "same size and weight" white gold usually reads lower. But the purity is not always exact. If the ring is stamped 14KP its "supposed" to be exactly 14K.
 

sprchng

Well-known member
If you take 2 rings of the same purity and the "same size and weight" white gold usually reads lower. But the purity is not always exact. If the ring is stamped 14KP its "supposed" to be exactly 14K.
lower than what?🤷‍♂️
 

Mark kus

Well-known member
Just pondering something and figured the intelligent users here would probably provide a quick answer. Does white gold read higher than yellow gold of the same purity? I'm thinking it would since the white gold is alloyed with silver which is a higher conductor. But, yellow gold is alloyed with copper which is a higher conductor, but not as high as silver. Or is the difference negligible?
White gold is basically yellow gold with a plating over it
 

fwcrawford

Well-known member
I believe it is alloyed with mostly nickel. If it was just plated over yellow gold I believe the plating would eventually wear off. Some of the old white gold bands I have found have a lot of wear on them.. (been worn for years and have deep scratches. ) I've seen no evidence of plating.
I was told by a jeweler that white gold does have a coating that needs to be applied from time to time due to wear... Not plating though.. I can't remember what she said they use.
 

fwcrawford

Well-known member
Just pondering something and figured the intelligent users here would probably provide a quick answer. Does white gold read higher than yellow gold of the same purity? I'm thinking it would since the white gold is alloyed with silver which is a higher conductor. But, yellow gold is alloyed with copper which is a higher conductor, but not as high as silver. Or is the difference negligible?
I have wondered about this too John.
Looks like opinions vary some about this.
With so many different sizes and styles of gold rings, they can show up all over the place, so I do not worry about it much.
I found two rings at the beach last month... one 10k and one 14k and both yellow gold, but different sizes and styles.
The 14k read 8 on my 800 and the other one read 15k.
They were different sizes and styles.
A couple years ago, I found 423 nickels in one year and not one piece of gold although I know gold can give the same reading.
 

RichW

Well-known member
I have wondered about this too John.
Looks like opinions vary some about this.
With so many different sizes and styles of gold rings, they can show up all over the place, so I do not worry about it much.
I found two rings at the beach last month... one 10k and one 14k and both yellow gold, but different sizes and styles.
The 14k read 8 on my 800 and the other one read 15k.
They were different sizes and styles.
A couple years ago, I found 423 nickels in one year and not one piece of gold although I know gold can give the same reading.
That's an amazing number of nickels without 1 gold. The majority of small gold rings I have found are down in the foil range but some read solid nickel. Back when I was using a CZ-6A many of the gold rings I found would bounce from foil to nickel on the ID. meter. The majority of the larger gold are usually in the pull tab range and I've found quite a few in the zinc penny range. (mainly class rings)
 
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