The "King Of Gems", Ruby is one of the world's oldest and most revered gemstones. It is also one of the rarest gems and Rubies with hardly any inclusions are so rare, that large stones of good color can be auctioned for higher prices than diamonds. The mineral Chromium is responsible for its vibrant color. Its major sources are Thailand, Myanmar, Kampuchea, Sri Lanka, Kenya, Afghanistan, India, Pakistan, Tanzania and Madagascar.
A = Slightly Included, Medium Pinkish Red, Good Cut, Good Polish.
A+ = Eye Clean, Medium to Medium Dark Pinkish Red, Good Cut, Good Polish.
AA = Eye Clean, Medium Dark Pinkish Red, Brilliant, Good Cut, Good Polish.
AAA = Eye Clean, Medium Dark Pinkish Red to Red, Brilliant, Excellent Cut, Good Polish.
SIGNITY = Machine Cut Gem.
BRIGHT FINE = Eye Clean, Excellent Machine Cut, Excellent Brilliance, Medium Dark Pinkish Red.
TOP BURMESE FINE = Eye Clean, Excellent Machine Cut, Excellent Brilliance, Dark Slightly Purplish Red.
DC = Diamond Cut.
Moh's Hardness = 9.
A+ = Eye Clean, Medium to Medium Dark Pinkish Red, Good Cut, Good Polish.
AA = Eye Clean, Medium Dark Pinkish Red, Brilliant, Good Cut, Good Polish.
AAA = Eye Clean, Medium Dark Pinkish Red to Red, Brilliant, Excellent Cut, Good Polish.
SIGNITY = Machine Cut Gem.
BRIGHT FINE = Eye Clean, Excellent Machine Cut, Excellent Brilliance, Medium Dark Pinkish Red.
TOP BURMESE FINE = Eye Clean, Excellent Machine Cut, Excellent Brilliance, Dark Slightly Purplish Red.
DC = Diamond Cut.
Moh's Hardness = 9.
