Analytical market data of rough Ruby price per carat USD. How do we calculate this data? CLICK HERE

Ruby5-10 ct70-90$4.60-$0.01$4.61$4.47Moderate
Current and historical Ruby market price index:
Current price per carat by date 2016-2017.
Rough average pricing scale.

Price per carat by year end.
Physical Properties of Ruby:
Chemical:Al2O3:Cr, Aluminium oxide with chromium
Cleavage:No true cleavage
Fracture:Conchoidal, Splintery
Color:Red, Red-Purple, Red-Orange
Crystal System:Trigonal
Specific Gravity:3.96 - 4.05
Luster:Subadamantine, Vitreous, Pearly
Refractive Index:1.762 - 1.778
Transparency:Transparent, Translucent, Opaque

Globally, Thailand, Cambodia, Burma, Madagascar, India, Sri Lanka, Afghanistan, Australia, Vietnam, Namibia, Tanzania, Colombia, Japan, Scotland, Brazil, Nepal, Tajikistan, Pakistan, Greenland, United States.

Ruby is the red variety of the mineral corundum. When corundum occurs in any other color it is referred to as a sapphire. Beside for its bright color, it is a most desirable gem due to its hardness, durability, luster, and rarity. Ruby has been the world’s most valued gemstone for thousands of years. Rubies are today still more valuable and rare than the top quality colorless diamonds. The per-carat price of ruby can also increase dramatically as size increases, especially for better-quality stones. Color is the most significant factor affecting a ruby’s value. The finest ruby has a pure, vibrant red to slightly purplish red color. As the color becomes too orangy or more purplish, the ruby moves down the quality scale. The highest-quality rubies have vivid color saturation.

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