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The Modern Cut Grade System (5.43)
GIA's cut grade system is comprised of brightness, fire, scintillation, polish, symmetry and durability.
The Modern Cut Grade System (5.43)
GIA's cut grade system is comprised of brightness, fire, scintillation, polish, symmetry and durability.
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Diamond’s Containment of Light (5.06)
The design of the modern round brilliant is such that it “contains” the light that enters it as long as possible.
Diamond’s Containment of Light (5.06)
The design of the modern round brilliant is such that it “contains” the light that enters it as long as possible.
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Single and Double Refraction (5.05)
Diamond is singly refractive -- but some gemstones are doubly refractive such as alexandrite, aquamarine, citrine, kunzite, corundum (ruby/sapphire), spinel, tourmaline, moissanite. Light bend as it enters the diamond but...
Single and Double Refraction (5.05)
Diamond is singly refractive -- but some gemstones are doubly refractive such as alexandrite, aquamarine, citrine, kunzite, corundum (ruby/sapphire), spinel, tourmaline, moissanite. Light bend as it enters the diamond but...