Jeweler today told me that an SI1 or SI2 will make a D stone

[iluvdiamonds2]

less sparkly. He said the way the light reflects into it and then comes out, it isn't as sparkly as a VS2, esp a D color.

What do u think of that?

 

[slg47]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

I think the inclusions *can* affect the light return but there are many many examples of beautiful eye-clean SI stones out there. Perhaps compare a well cut D SI1 with a D VS2 and see if you can tell the difference? The cut quality is going to have the greatest effect on the 'sparkliness' of the diamond (unless it is a really bad I3...)

also I am not sure why he said 'especially' with a D color?

 

[yssie]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

less sparkly. He said the way the light reflects into it and then comes out, it isn't as sparkly as a VS2, esp a D color.

What do u think of that?

Technically, certainly true re. clarity.
Practically, if you have a large stone, or dense clouds/twinning wisps poorly placed deep into the middle of the stone, you *may* notice less brilliance in an SI2 or I1 graded by GIA's standards.
Not sure what it being a D has anything to do with it - clarity is graded independently of colour, inclusions affect light return independently of colour, and colour doesn't become a practical obstacle to light return until it is quite dark and saturated - certainly not in the colourless/near colourless ranges.

 

[RockHugger]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

Sounds like he was trying to sell you a more expensive diamond. An SI 1 will not look any different to the eye then a vs2. Inless you have microscope eyes. Cut makes sparkle.

 

[jstarfireb]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

In some cases, inclusions can affect light return, but this is usually below the SI range. We're talking eye-visible inclusions that show up as cloudiness in the body of the diamond. Color won't modulate this effect at all. Cut is a much more important determinant of sparkle.

 

[MarkBroumand]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

In some cases, inclusions can affect light return, but this is usually below the SI range. We're talking eye-visible inclusions that show up as cloudiness in the body of the diamond. Color won't modulate this effect at all. Cut is a much more important determinant of sparkle.

Right, this can occur but we are talking below SI range or a serious cloud or something along that nature

 

[RockHugger]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

A serious cloud would be graded as an I1 not an SI2. At least IMO.

 

[AdanaEsq]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

I had a smaller (.80) SI1 D color and it was very sparkly. Florescent lights were my friend when I had it. i have no idea if it would have sparkled more if it was a VS2 or above but the inclusions were white feathers I think.

 

[Karl_K]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

A serious cloud would be graded as an I1 not an SI2. At least IMO.

not always, I have seen an gia si1 grade setting cloud that affected light return and Garry has documented many of them.
Grade setting si clouds need to be checked either in person by the buyer with a return policy or a trusted professional diamond expert before the sale.

That said there are si1 and si2 diamonds that the inclusions have no visible effect on light return so saying all si diamonds will be less bright is false.

 

[iluvdiamonds2]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

thank you!

 

[RockHugger]

Re: Jeweler today told me that an SI1 or SI2 will make a D s

I guess that's the difference in grading eyes. If there is an inclusion that is eye visible and effects light return (cloud, crystal, feather,ect) Its an I. Although I have seen Gia reports with an Si2 that has such inclusions (one was a huge crystal inclusion in the center of the table). I never understood why that grade was given.