Top 10 Varieties Of the Gemstone Sapphire

Sapphire can occur in almost all colors except red.
Sapphire hardness on Mohs scale is 9 /10 (one of the best ever, 3rd hardest gem after diamond and moissanite).

The Top Ten

1 Blue Star Sapphire

Star Sapphires have rutile needles inside responsible for the amazing optical effect called asterism (star-like effect). - Metal_Treasure

2 White Star Sapphire
3 Blue Sapphire
4 Pink Sapphire
5 Padparadscha Sapphire

It's a pink-orange sapphire, which is the rarest color of sapphire. Most jewelers never seen one. - Metal_Treasure

6 Green Sapphire
7 Particolored Sapphire (Parti Sapphire)

Sapphires that exhibit two or more colors within a single stone (mostly found in Australia) - Metal_Treasure

8 Black Sapphire
9 Purple Sapphire
10 White Sapphire

It's Colorless Sapphire - can be used as a diamond alternative - Metal_Treasure

The Contenders

11 Yellow Sapphire
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