Stone Cat Eye. Consultation.

Hello. I can not determine the authenticity of the product. Tell me how to determine. It looks like a stone. Clasp 925 sterling silver. All beads have their shade and shimmer. The necklace is heavy and cold.

 

Hello Stepan
Control if they are perfectly round and measure diameters, if totally regular is a proof of machine maid items.
On this picture, it seems they are stone ?

 

All beads are perfectly round and all have a single diameter of 10 mm.

 

It is a pretty necklace, Stepan. The separate knotting is good.
You call it cat eye, does the cat eye effect change when you move the beads?
On the photos it looks like they could be nice quality glass beads, made to look like lapis lazuli. But if there is chatoyance, a fluctuating cat's eye effect, they could be dyed tiger's eye.

 

Cat's eye is a generic term for over 20 different types of gemstones and there is nothing specific in the photos to say what your's are. https://geology.com/gemstones/chatoyancy/

 

You're right, I was thinking of tiger's eye. I've changed it.

But I still think the beads could be glass. Anyone have any ideas?

 

One bead is broken (photo). All beads are perfectly smooth. Made a macro photo.

 

Dyed blue tiger's eye quartz for sure. I even found the unstrung beads for sale on line.

https://www.dakotastones.com/Blue-Tiger-Eye-10mm-Round-dyed_p_8378.html

(site sells to the trade only, no retail)

 

Thank. Yes, it is the eye of the tiger. And what in nature there is no such color?
https://www.dhgate.com/product/5-a-grade-blue-tiger-eye-and-eye-stone-lucky/395800736.html

 

The original is a tan or brown. I've seen it dyed red and green before, and just found some dyed pink. A stone called hawks eye quartz is almost black.

 

https://www.gemselect.com/gem-info/hawks-eye/hawks-eye-info.php

 

Very good photos, @Stepan -- I love the dyed color.