Nice freshly cut Sri Lankan sapphire.  Looks pretty much eye clean.   Slight natural inclusions present upon magnification.  Can't see it myself with the naked eye, on magnification it's easily visible as a black speck.   Looks very thin at one angle and as you turn the stone it appears more noticeable.  I took all the photos and video to show it at its largest.  
Very high luster with nice fully reflective cutting.  This is the type of cutting and full intense fire from within the stone that one would be looking for in any top piece of jewelry.  Love the color of this stone especially at night with inside lighting but outside it's very nice as well.
Certified sapphire. Rivermined gemstone.  Ratnapura means gem city translated. 25% of Ceylon is thought to be covered in gem gravels.
Rivermined sapphires are always best because they tend to be more rounded for easy cutting. Mining costs less and the sapphires are better quality because of the outside included edges getting worn away during their travel.  
100% natural untreated gem.