Is this star sapphire behaving like a natural?

[nala]

The back does not have an L, for Linde but I know there are non branded star sapphires out there. Thoughts on how the star is moving? Also. The color is not as bright as my iphone is making it appear.

 

[Starstruck8]

The back does not have an L, for Linde but I know there are non branded star sapphires out there. Thoughts on how the star is moving? Also. The color is not as bright as my iphone is making it appear.

I'd guess synthetic. Opaque, uniform, strongly blue body and bright sharp star all suggest synthetic. If you search the net for 'men's star sapphire rings' (or similar), you will find any number of rings that look like that, honestly described as synthetic or diffused.

Note: The star moves in exactly the same way for natural and synthetic stones, because it's formed in exactly the same way, i.e. by reflection from rutile needles oriented to the crystal axes. The only exceptions are: a) really bad imitations, which have a fixed star somehow marked on the surface and b) composites with a back made of 'starry' material (either natural or synthetic) and a transparent dome.

 

[fiona00004]

Are you asking if natural or synthetic? I agree with @Starstruck8 , looks to be synthetic, especially since it's opaque with super white star.

 

[nala]

Ty!

 

[LunaIzzy]

It’s synthetic star sapphire

 

[nala]

Would the stone weigh very little? My ring weighs 9.33 grams and I paid below scrap. Am wondering how much the stone weighs.

 

[Avondale]

If it's synthetic, it would weigh the same as a natural sapphire would. There are calculators available online where you can input the relevant info and get a rough estimate. I've used this one before: http://www.csgnetwork.com/caratwtcalc.html and I've tried it with some of my gems (the ones I have the measurements for), it was roughly accurate.

 

[nala]

Ty!