🔎 UNIDENTIFIED Can you ID these markings on this ring ?

[TORRERO]

 

[Red-Coat]

Replied on your other thread:

Playground today and turned up this

Clearly CZ is Cubic Zarconia or whatever … but what does those other letters mean ?

www.treasurenet.com

 

[RKW]

"SU" likely stands for sterling silver. "CH" is often a maker's mark. "CH" can also stand for Confoederatio Helvetica, and stands as a symbol for 18k gold

 

[ARC]

"SU" likely stands for sterling silver. "CH" is often a maker's mark. "CH" can also stand for Confoederatio Helvetica, and stands as a symbol for 18k gold

this is total BS...
No offense to you... but you quoted one of these google search results that was written by someone who does not know anything.

 

[ARC]

Its steel... pay no attention to all the mumbo jumbo.
SU is short for Surgical steel.
CH is short for China.
CZ is short for Cubic Zirconia.
And that is ... what it is.
Disregard all the google results written by those "selling" something they found at a yard sale and that are reaching / grabbing / imaginations gone wild.

The internet is SO full of total crap written by anyone who thinks they know something.

PS... this was likely made by Yehwang Wholesale. ... due to the "SU" mark .. they used that SU instead of "316" or "SUS."... as well as several others.
this can easily be tested... IF you know what you are looking for and how.

Using testing solutions will not yield proper diagnosis of metal IF the person does not know the ins and outs of testing items like this.
A novice OR even a veteran tester will be EASILY misled... and are.
These are / can be very tricky.
FOR example....
Stainless / surgical steel will show NO reaction to any standard (including 18k) testing solutions.

 

[Red-Coat]

Its steel... pay no attention to all the mumbo jumbo.
SU is short for Surgical steel.
CH is short for China.
CZ is short for Cubic Zirconia.
And that is ... what it is.
Disregard all the google results written by those "selling" something they found at a yard sale and that are reaching / grabbing / imaginations gone wild.

The internet is SO full of total crap written by anyone who thinks they know something.

PS... this was likely made by Yehwang Wholesale. ... due to the "SU" mark .. they used that SU instead of "316" or "SUS."... as well as several others.
this can easily be tested... IF you know what you are looking for and how.

Using testing solutions will not yield proper diagnosis of metal IF the person does not know the ins and outs of testing items like this.
A novice OR even a veteran tester will be EASILY misled... and are.
These are / can be very tricky.
FOR example....
Stainless / surgical steel will show NO reaction to any standard (including 18k) testing solutions.

I don’t think I’ve ever encountered the initials ‘SU’ as shorthand for surgical steel (reference?) Your link to Yehwang Wholesale makes no mention of that mark, but only references the Japanese ‘SUS’ mark (denoting ‘Steel Use Stainless’) which is usually followed by a number to denote the grade. Although used in China, it’s not a standard Chinese marking.

I would still hold to the ‘SU’ more likely being a trademark / maker mark for a Chinese internet seller of costume jewellery, and possibly the company that used to trade as “Silver Unlimited” (although their jewellery wasn’t actually silver but might have been plated) which seems to have disappeared without trace. Not to be confused with the store of the same name at the St. Vincent Jewelry Center in Los Angeles.

Agree that any suggestion of ‘SU’ being for sterling silver or ‘CH’ being for Switzerland (Confoederatio Helvetica) is nonsense and that 'CZ' is definitely for Cubic Zirconia.

 

[ARC]

I don’t think I’ve ever encountered the initials ‘SU’ as shorthand for surgical steel (reference?) Your link to Yehwang Wholesale makes no mention of that mark, but only references the Japanese ‘SUS’ mark (denoting ‘Steel Use Stainless’) which is usually followed by a number to denote the grade. Although used in China, it’s not a standard Chinese marking.

I would still hold to the ‘SU’ more likely being a trademark / maker mark for a Chinese internet seller of costume jewellery, and possibly the company that used to trade as “Silver Unlimited” (although their jewellery wasn’t actually silver but might have been plated) which seems to have disappeared without trace. Not to be confused with the store of the same name at the St. Vincent Jewelry Center in Los Angeles.

Agree that any suggestion of ‘SU’ being for sterling silver or ‘CH’ being for Switzerland (Confoederatio Helvetica) is nonsense and that 'CZ' is definitely for Cubic Zirconia.

Agreed... SU MIGHT BE the Chinese maker mark.

It is NOT silver though.

PER law... It would be marked as silver... Even fake sterling is still marked...thats IF they want to apeal to the silver market... which would be the intention.
There is no "secret" OR "other" marking for it... heh
That would in itself be stupid at best. from a marketing standpoint.

 

[ARC]

• SU: In some cases, "SU" may represent a manufacturer's or distributor's mark, especially if the piece is handcrafted. For instance, one source suggests that "SU" within a circle on a necklace might stand for "Sunstone Imports," a company that distributes and imports sterling silver jewelry.
• SU + 925: If you find "SU" alongside "925", it generally indicates that the item is made of sterling silver, which is 92.5% pure silver, according to eBay. However, it's important to remember that the purity mark "925" became widely accepted in Europe only after 1974, and its meaning can be less reliable when found alone, particularly with items from certain regions.

 

[ARC]

Test with 18k solution and make hard rub line.... if blues... then ster silver.
If white with no fade and sits.
Stainless.

Anything other.... then fubar.

 

[Red-Coat]

• SU: In some cases, "SU" may represent a manufacturer's or distributor's mark, especially if the piece is handcrafted. For instance, one source suggests that "SU" within a circle on a necklace might stand for "Sunstone Imports," a company that distributes and imports sterling silver jewelry.
• SU + 925: If you find "SU" alongside "925", it generally indicates that the item is made of sterling silver, which is 92.5% pure silver, according to eBay. However, it's important to remember that the purity mark "925" became widely accepted in Europe only after 1974, and its meaning can be less reliable when found alone, particularly with items from certain regions.

That's not completely right. The 'SU' in a circle is the mark for the importer Roman & Sunstone LLC of Delaware and the additional 'TH' shown on the ebay pendant is for 'Thailand' as the country of origin. The 'SU' mark has no connection to the plain-letter 'SU' mark on the ring originally posted.

The '925' is of course for sterling silver but is unconnected to the 'SU' mark. So, it's not the case that "SU alongside 925 generally indicates the item is made from sterling silver". They only appear together because, since 1961, the USA has required precious metal items with a purity mark, including imports, to have traceability via a full name or registered trademark.

Roman & Sunstone registered the 'SU' in a circle trademark in the USA on 17th September 1985 and it expired on 20th March 2020.