Blue Sapphire 6.064 ct
This sapphire is blue in color and weighs approximately 6 carats. The stone is slightly longer than 1 cm, just over 9 millimeters wide, and 6.15 millimeters deep.
This gemstone shows small inclusions and very good color quality.
The transparent sapphire was cut into a faceted antique oval, with a modified brilliant-cut top and six facet crowns below.
What makes this 6-carat sapphire unique is its color.
The color has been classified by Lotus Gemology as "Velvet Blue." This gemstone institute has its own color classifications for rubies and sapphires. "Velvet Blue" is one of these color types according to Lotus. Velvet Blue is that dreamy, silky blue that is typically only seen in Kashmir sapphires.
This sapphire comes from Sri Lanka.
The certificate mentions signs of a thermal treatment, indicating that the stone has undergone heat treatment. Such treatment is very common and standard practice for sapphires. Heating, also known as "burning," is a specialized science. The "recipes" used by the burners are kept strictly confidential. Heating is intended to permanently enhance both the color and the clarity of a stone.