| Share |
Gemstone Density (Specific Gravity)
| Gem materials vary greatly in density -- amber may float in salt water (density near that of water), while hematite is more than five times the density of water. This is why two different gemstones may have the same size but different weights and vice versa -- a one carat round brilliant diamond of typical proportions will be approximately 6.5 mm in diameter, while a round brilliant ruby of the same size (6.5 mm in diameter) and proportions will weigh approximately 1.55 carats. Generally, gemologists refer to specific gravity, or relative density -- the ratio of the density of a gemstone relative to that of water. | ||||
Back to Gemstone Articles Index
Shopping Cart
View your shopping cart.
Help
AJS Gems Newsletter
Subscribe and be the first to know about news and any future specials.
See Also
Ametrine from Boliva
Precision Cut
Fire and Scintillation
Natural Sapphire
Gemstone Certification
Zircon Gems
Pink Gemstones
Natural blue sapphire
Natural alexandrite
Spessartite garnet
Jadeite jade
Green apatite
Pink tourmaline
Amethyst
Burma ruby
Spinel
Aquamarine gems
Green tourmaline
Paraiba tourmaline
Kunzite
Blue zircon
Peridot
Tsavorite garnet
Star ruby
Tanzanite
Pink sapphire
Precision Cut
Fire and Scintillation
Natural Sapphire
Gemstone Certification
Zircon Gems
Pink Gemstones
Natural blue sapphire
Natural alexandrite
Spessartite garnet
Jadeite jade
Green apatite
Pink tourmaline
Amethyst
Burma ruby
Spinel
Aquamarine gems
Green tourmaline
Paraiba tourmaline
Kunzite
Blue zircon
Peridot
Tsavorite garnet
Star ruby
Tanzanite
Pink sapphire
