Diamond hallmark 'DIA'

Barkered

Hello!

Hopefully someone knows the answer to this!

- I have a diamond engagement ring with 4 small diamonds and on the inner ring I can see that it's 18k white gold, but there is also a mark relating to the diamonds:

".13 DiA"

Does anyone know, would this be the total for all 4 stones, or would it account for each one?

Many thanks.

Robin.

antenna

Total of all stones...........sorry

74jax

Dia I think means diameter.

Nothing to do with diamonds as obviously you could swap them etc.

ETA..... A Google says dia means originally sold with diamonds. Not sure that helps. If you type in to Google ' what does my ring tell me' there's loads of about from jewellers.

ChrisHammersmith

Hi Robin

I believe that .13 actually refers to the total weight of the diamonds. So your ring has .13 of a carat in diamonds.

DIA is the hallmark confirming that the stones are (or were when the ring was made) Diamonds.

Though on some jewellery you can see a hallmark resembling a “pie chart” or simplified diamond image, if you will. Which I believe also indicates diamonds.

Of course it should go without saying that diamonds are normally only used in higher grade precious metals warranting their own hallmarks. So if these are not also present. It’s unlikely to be diamond(s).

Hope this helps

Chris

liamgrace

I guess it refers to the total weight of the diamonds.

savvy

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Rachel83

Definitely the total weight of all the stones together.

donna1301

I have a ring with hallmarks 750 DIA on one side and the other side initials I think are GA, scales, 750 in a rectangle type box then a letter but can't make that out,, it's my husbands nans but we know nothing about it only grandad bought it. 

Pollycat

donna1301 said:

I have a ring with hallmarks 750 DIA on one side and the other side initials I think are GA, scales, 750 in a rectangle type box then a letter but can't make that out,, it's my husbands nans but we know nothing about it only grandad bought it. 

It's an old thread but...the 750 may refer to 18 carat gold - which is 3/4 of 24 carat of pure gold.

I have gold jewellery bought in India that is 18 carat gold and is marked '750'.

Explained here:

https://antiquesilver.org/750-585-417-markings-gold-jewelry-mean/

• 9 karat gold – 375. Likewise, you won’t find any US jewelry marked with 375, but you’ll see it on British items.
• 10 karat gold – 417 (sometimes marked as 416). All jewelry sold in the US must be at least 10 karats in order to be marketed as gold.
• 12 karat gold – 500. You won’t see much 12K jewelry since it tends to be fairly dull in color.
• 14 karat gold – 583 (sometimes marked as 585)
• 18 karat gold – 750
• 22 karat gold – 916 (sometimes marked as 917). Normally, 22K gold is too soft to use in much jewelry, but it’s often used for gold leaf or plating.
• 24 karat gold – 999. Again, 24K gold is too soft for jewelry.

The letter will indicate which year it was assayed or made.

Silvertabby

Does that also apply to stud earrings?  I have a pair marked 0.25, but don't know if that is for each stud or for the pair.

Silvertabby

Pollycat said:

donna1301 said:

I have a ring with hallmarks 750 DIA on one side and the other side initials I think are GA, scales, 750 in a rectangle type box then a letter but can't make that out,, it's my husbands nans but we know nothing about it only grandad bought it. 

It's an old thread but...the 750 may refer to 18 carat gold - which is 3/4 of 24 carat of pure gold.

I have gold jewellery bought in India that is 18 carat gold and is marked '750'.

Explained here:

https://antiquesilver.org/750-585-417-markings-gold-jewelry-mean/

• 9 karat gold – 375. Likewise, you won’t find any US jewelry marked with 375, but you’ll see it on British items.
• 10 karat gold – 417 (sometimes marked as 416). All jewelry sold in the US must be at least 10 karats in order to be marketed as gold.
• 12 karat gold – 500. You won’t see much 12K jewelry since it tends to be fairly dull in color.
• 14 karat gold – 583 (sometimes marked as 585)
• 18 karat gold – 750
• 22 karat gold – 916 (sometimes marked as 917). Normally, 22K gold is too soft to use in much jewelry, but it’s often used for gold leaf or plating.
• 24 karat gold – 999. Again, 24K gold is too soft for jewelry.

The letter will indicate which year it was assayed or made.

I have 2 necklace chains from Saudi Arabia.  The lighter chain link one is marked 750, but the heavier one - a solid rope design - is marked 21K.