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Help with caulating the Carat weight of these earrings please

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Without a scale/size reference it's a totally impossible task.

On the other hand, you may find this useful for the baguettes (rectangular cuts)

Straight Baguette Cut Diamond Mm To Carat Weight Conversion Chart Sizes Cuts Size Marquise

and this for the rounds - ignore the sieve numbers and look at the diameterimage.png.519216a752170aa8c11b759a966b38fc.png

Edited by davidelevi

Davide - Specialised Consumer Information and Assistance,
Diamonds by Lauren (http://www.diamondsbylauren.com)
davide@diamondsbylauren.com

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thanks David for you quick reply so do you measure the diamonds  & Baguette  say there is 20 Baguette and 20 diamonds 

20 Baguette  0.2 carats  =

and say 20 Diamonds at 0.2  =

How many points in a carat 

 

so when you get the answer do yo multiply by 2 to earrings sorry stupid question 

 

Thanks in advance 

 

Peter

 

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Hi Peter!

A carat is 100 points.

Yes, just measure, look up and multiply, and of course if you are looking for the total total, then roughly x 2 to account for there being 2 earrings (they may not be identical and the stones in one may be smaller, so you may multiply by 1.9 or 2.1 depending on which one you measured).

Bear in mind that this is quite approximate - say +/-25%; if you need more accurate estimates, you'll need to get a micrometer and measure each stone's depth as well as the length and width, then use a more accurate formula (which I can dig out from somewhere if needed, but I can't remember off the top of my head). This assumes that you have enough space in the setting to actually take the measurements... which is not at all a given. Otherwise, the only precise way of getting the weight is to unset and re-set the stones, which is going to cost you a large amount of money relative to the +/-25% uncertainty!

Edited by davidelevi

Davide - Specialised Consumer Information and Assistance,
Diamonds by Lauren (http://www.diamondsbylauren.com)
davide@diamondsbylauren.com

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6 hours ago, davidelevi said:

Hi Peter!

A carat is 100 points.

Yes, just measure, look up and multiply, and of course if you are looking for the total total, then roughly x 2 to account for there being 2 earrings (they may not be identical and the stones in one may be smaller, so you may multiply by 1.9 or 2.1 depending on which one you measured).

Bear in mind that this is quite approximate - say +/-25%; if you need more accurate estimates, you'll need to get a micrometer and measure each stone's depth as well as the length and width, then use a more accurate formula (which I can dig out from somewhere if needed, but I can't remember off the top of my head). This assumes that you have enough space in the setting to actually take the measurements... which is not at all a given. Otherwise, the only precise way of getting the weight is to unset and re-set the stones, which is going to cost you a large amount of money relative to the +/-25% uncertainty!

Thanks David for all your help 

 

Kind regards 

 

Peter

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Good Evening David 

 

there are 

0.02 carts Diamonds  0.2 x 48= 0.96

 

0.02 carts Baguette  0.2  X 60 = 1.2

 

The Total carat Weight 2Crt .16

 

this looks wrong to me what do you think it looks like lot more Carat weight in them have I done something wrong

 

Thanks in advance

Peter  

 

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Are you sure about the size? Round 2 pointers should be about 1.6 - 1.7 mm, but if that's the case, the baguettes are at least as wide, which means they should be 8-10 pointers (3.5 mm x 1.7?)

Also, from the photos I count 13 x 2 rounds in each earring, and 15 baguettes, but it's difficult to count the baguettes.

If I'm right, then 

0.02 * 26 = 0.52 rounds

0.09 * 15 = 1.35 baguettes

Total 1.87 cttw per earring, or ~3.8 cttw for two earrings.

This is guessing at the measurements - do try to get a caliper around at least one of the rounds and to measure width and length of the most accessible of the baguettes.


Davide - Specialised Consumer Information and Assistance,
Diamonds by Lauren (http://www.diamondsbylauren.com)
davide@diamondsbylauren.com

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Thanks David for all your help 

 

I have been using this to measure with what's your opinion on these 

 

Thanks in advance 

Peter

 

820169242_WhatsAppImage2019-12-03at9_49_34PM.jpeg.13ea650f92f7bfc6f474d6d89a4a24bc.jpeg

WhatsApp Image 2019-12-03 at 9.49.34 PM(1).jpeg

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Those are fine... if you know how to use them (and it's trickier than it seems with mounted stones). Also, especially with non-rounds or squares, the L x W proportion of the gauge is almost never right, which is why I would rather use a micrometer or a caliper. Don't get me wrong - better than nothing; FWIW, assuming that the omega clips at the back are more-or-less normal size, I would have guessed 1.50 ct per earring or thereabouts...


Davide - Specialised Consumer Information and Assistance,
Diamonds by Lauren (http://www.diamondsbylauren.com)
davide@diamondsbylauren.com

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