Ametrine or not?

[denis0007dl]

Hello, purchased "Ametrine" 105 carats, can anyone just based on picts tell if its real or not?

I have nice video but cant upload it here...

Thanxs for comments,
Kind regards from Croatia

 

[denis0007dl]

Purchased here


https://www.gemrockauctions.com/pro...rine-precision-exquisite-cut-gemstone-1736702

So datas from site are:
Dimensions (mm)

28.000 x 26.000 x 22.000 mm

Weight (cts) 105.000

Type: Faceted

Clarity: VVS

 

[Rfisher]

Real
As in real citrine on half the stone, or half of the amethyst heated to change color ?
Real as in not grown in a lab, then treated?
Real as in fitting the definition of Ametrine vs color zoned amethyst? Or real but not very great example of the color ways.

An independent lab is the only way to be sure if you do not trust the vendor.

Other than me saying the colors as they appear in the pictures do not jive to what I think as of as ametrine color ways.

Best wishes.