Diamond science

Antique Diamond Cuts
Antique cuts       An antique cut does not imply "old." In fact, most "antique"...
A Complete Guide to Diamond Certification
A Complete Guide to Diamond Certification   Leon Mege is an honest jeweler. We offer only G...
True Antique™ Cushion Cut
True Antique™ Cushion Cut     What makes a True Antique™ Cushion Diamond so exclusi...
HCA Trap
HCA Trap   HCA score calculator is a dumbed-down version of a diamond cut evaluation: a hig...
ASET scam
ASET scam   ASET test is a scientific breakthrough, but a sales gimmick of the worst kind. ...
Diamond Math: 4C's
Diamond Math: 4C's + Confidence = Five C's   4C's   |  Cut   |  Clarity &...
Diamond Cut
Diamond Cut Grade   4C's   |  Cut   |  Clarity   |   Color &nbs...
Swords and Shields
Swords and Shields   Regarding the use of the term Hearts and Arrows: The hearts and arrow...
Fluorescence
Fluorescence   Some diamonds emit a soft-colored glow when subjected to ultraviolet light...
Diamond Color
Fifty Shades of a White Diamond   4C's   |  Cut   |  Clarity   | &n...
Diamond Clarity
Transparency of a Diamond   4C's   |  Cut   |  Clarity  |   Co...
Diamond Side Stones
Side stones   Matched pairs of stones are used to accent a center stone in a three/five sto...
Modern Diamonds
Modern Diamonds   Emerald Cut The supreme elegance of an emerald cut cannot be disputed. I...
Diamond Carat Weight
Karat or Carrot? Neither, it's Carat   4C's   |  Cut   |  Clarity   ...
Diamond "Blood" Types
Diamond "Blood" Types   Just like a blood type for humans, diamonds have 4 distinct group...
Carbonado
Carbonado   A “Black Diamond” is a natural polycrystalline aggregate of minute graphite and...
Diamond Stand-ins
Diamond Stand-ins   Breaking with the custom of a diamond ring is usually done under the gu...
Famous Diamonds
Famous Diamonds   Until the advent of the modern round cut in the early 1900's, almost all ...