Brilliant no window cutting.   You can  see there is no window by the full reflection from the center of the stone to the outside edge of the crown.   When you do not get fullo reflection coming through the top table facet this is because the stone was not cut for full brilliance instead it was cut for weight.   When you buy window cut stones you're paying for extra carats that were left at the cost of the full beauty of the stone.   Try always to buy stones with full reflective cutting.   You'll be much happier with your purchase afterwards and mostly you are paying less in the long run as you pay for gem quality cut not bulk weight.

This stone is very clean upon magnification at VVS quality.   No inclusions will be seen even in the highly magnified video and photos.
This is from Luc Yen Vietnam.   This deposit is in the same marble deposit that occurs in Myanmar Burma.   Luc Yen is only around 750 kms from the Man Sin deposit where the Jedi spinel came from.
  
Luc Yen stones do not get treated.   No heat on the Luc Yen spinel.   Spinel do not respond to treatments like sapphire.  So rest assured this stone is 100% natural and untreated. 
 
Mined from under the rice fields in the alluvial gravels in the shallow valley near the original marble deposit.  Rubies and sapphire are also associated with this deposit similar to the Burma deposit.  I'm was a geologist before I became a gem enthusiast/gemologist.   My business plan is to bring the better quality gemstones to my customers at a better more fair price.