Variety: Natural Blue Sapphire Weight: 1.45 ct Color: Vivid saturated royal blue Shape: Square cushion. Cut: Brilliant crown with step-cut pavilion. Very good meet points and the culet is centered. Dimensions: 5.85 X 5.75 X 4.75 mm Clarity: Eye Clean Treatment: Heated, no other treatments. Video (natural sunlight): https://vimeo.com/353386482 Details ... I purchased this stone from an associate Sri Lankan dealer a couple years back. You can find the stone listed on his archived YT Page here: https://www.youtube.com/channel/UChI4SucsjlvEUIbLMvvnbkw/videos?view=0&sort=dd&shelf_id=0 Scroll down a bit, shown as # 044 It was intended to be used in an engagement ring, but I later decided to buy the rough material instead and cut the center stone myself... which I did. I kept this stone for a couple of years hoping to find another one just like it. I wanted to use them for matching earrings but finding a perfectly matched stone became more difficult than I had anticipated. This vivid royal is very hard to find in this size and even harder to find in a square cushion. Offering this hard to find color and shape at well below market value, so don't miss it ... it's a beauty.