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tline3open  Gold Filled vs. Gold Plated

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Author Topic:   Gold Filled vs. Gold Plated
Scott Martin
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Posts: 11520
Registered: Apr 93

iconnumber posted 02-17-2017 03:53 PM     Click Here to See the Profile for Scott Martin     Edit/Delete Message   Reply w/Quote
I understand the Gold Plating process essentially is the same process as Silver Plating.

I also understand that a Gold Filled object has substantially more gold than than a similar object which has been Gold Plated.

What is the process of Gold Filling? Is Sheffield plating comparable?

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Polly

Posts: 1970
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iconnumber posted 02-17-2017 04:26 PM     Click Here to See the Profile for Polly     Edit/Delete Message   Reply w/Quote
My understanding is that gold-filled objects are analogous to Sheffield plate: a thin sheet of gold is bonded to a base metal, usually brass.

Happy to be corrected if I'm wrong!

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agleopar

Posts: 850
Registered: Jun 2004

iconnumber posted 02-17-2017 09:17 PM     Click Here to See the Profile for agleopar     Edit/Delete Message   Reply w/Quote
Yes just like Sheffield plate. Gold filled is fused and then rolled or drawn for wire. The proportion of gold to base metal stays the same through the rolling. Usually gold filled is double sided so the thick core is sandwiched between thin plates of gold. Like Sheffield plate the edges need to be disguised by rolling them over or adding a solid wire for example. Unlike gold plating, which is 5 to 15 microns gold filled can be engraved.

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Kimo

Posts: 1627
Registered: Mar 2003

iconnumber posted 02-18-2017 08:57 AM     Click Here to See the Profile for Kimo     Edit/Delete Message   Reply w/Quote
quote:
I also understand that a Gold Filled object has substantially more gold than than a similar object which has been Gold Plated.

Sometimes yes, sometimes no. If the metal that is being clad on one object is low such as 10K while the gold in the plating on another object is high gold content such as 24K, then that will make a difference. Also the thickness of the gold that is being clad vs the thickness of the deposited gold in plating will make a difference. Gold filled normally means that 1/20th of the weight of the object is made up of the gold cladding alloy but I am not sure that there is much intensive proofing of this amount in countries where there is little control on markings. In any event, since there is so little metal even when the 1/20th standard is met, and since it is typically only 10K or 14K gold, and since gold plating can be almost any thickness with quality objects having thick plating, it is hard to say that gold filled will always have more actual gold than plated gold. Perhaps in more cases than not gold filled will have more gold than gold plated, but not always. In either case, I do not think that the amount of actual gold will be such that the commercial value of a quality piece of gold plate will be much different than a piece of gold filled, especially on quality plated objects.

[This message has been edited by Kimo (edited 02-18-2017).]

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Scott Martin
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iconnumber posted 02-18-2017 10:09 AM     Click Here to See the Profile for Scott Martin     Edit/Delete Message   Reply w/Quote
Thanks everyone!

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ahwt

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iconnumber posted 02-18-2017 11:33 PM     Click Here to See the Profile for ahwt     Edit/Delete Message   Reply w/Quote
16 CFR 23 contains the GUIDES FOR THE JEWELRY, PRECIOUS METALS, AND PEWTER INDUSTRIES. Wikipedia also has an entry for this subject.
I am not sure that this adds anything to the above discussion, but it is nice to know that the industry has standards that they have agreed to.

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Paul Lemieux

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Registered: Apr 2000

iconnumber posted 02-19-2017 07:57 PM     Click Here to See the Profile for Paul Lemieux     Edit/Delete Message   Reply w/Quote
Legitimate gold-filled jewelry contains enough gold to have value. In fact, if a 1/20 12K GF piece is honest, its melt value is nearly 2x that of a sterling piece of the same weight.

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Scott Martin
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iconnumber posted 02-20-2017 09:50 AM     Click Here to See the Profile for Scott Martin     Edit/Delete Message   Reply w/Quote
This is the mourning fob that prompted the question.

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Paul Lemieux

Posts: 1792
Registered: Apr 2000

iconnumber posted 02-20-2017 10:42 PM     Click Here to See the Profile for Paul Lemieux     Edit/Delete Message   Reply w/Quote
It looks like the inside of the clasp is marked "F&B". This might refer to Foster & Bailey, a jewelry manufactory in Providence.

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Scott Martin
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iconnumber posted 02-21-2017 09:34 AM     Click Here to See the Profile for Scott Martin     Edit/Delete Message   Reply w/Quote
Yes we thought so as well.

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Scott Martin
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iconnumber posted 03-14-2017 06:07 PM     Click Here to See the Profile for Scott Martin     Edit/Delete Message   Reply w/Quote

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