Fatal flaw in a sapphire?

[Eos30d]

Hello, I just purchased this untreated .5 ct blue sapphire (my first) online and I have a few questions.

First is the obvious flaw that I found under the microscope. I know untreated sapphires are supposed to have an "internal world" to them but I think this internal crack is beyond normal. You can only see it at certain angles and it is only just eye visible if you know where to look. Is this a fatal flaw? Or Normal?

My second question is about the color. I am quite mesmerized by the blue, but when certain kinds of light at certain angles hit it there is a warmer/purpleish hue to it. Any thoughts about this?

Thanks in advance.

 

[Pandora II]

It''s hard to tell from just the one photograph.

Is it an inclusion or a fracture? Does it come to the surface or is it deep inside? If it comes to the surface is it near/on the table or a facet joint?

Sapphire doesn''t have cleavage which should make it less dangerous than it would be in another type of stone.

Don''t even think of putting it near an ultrasonic!

I''m sure some of the GG''s will have a better idea...

Sapphire is strongly pleochroic - so it will show different colours at different angles. Blue/Violet is a common combo.

 

[Eos30d]

I didn''t get a shot from the side to turn out, so I will have to just describe from what I see - remembering I have no idea what I am taking about!

The flaw is near the surface but does not appear to touch it. It is mostly under the window, and I can only really see it through the window from directly above in direct light, or under magnification.

I am leaning towards and exchange right now.

 

[LembeckGems]

describing there is nothing wrong with your sapphire. it is normal for some sapphires to shift color under different lighting. yours is showing a purple hue under incandescent light I''m guessing.

also, the industry standard for rating your sapphire is 10 x. you look like you''re using 40x. that''s ok to look at it of course but too strong to use for criticism.


40 k is useful for determining if the stone has been heated. if a person knows what to look for they can tell from examining the inclusions if they have been altered by high heat.


your inclusion does not come to the surface. that is ultra important. do NOT buy stones with inclusions that break the surface. that aside it is best if the inclusions are not under the table but rather under the crown especially if they are near to the surface. sapphire is a type 2 gem. inclusions are normal. even under the table.


enjoy your stone. from the picture it looks like you did fine.

scl

 

[LegacyGirl]

It looks very pretty from the picture