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Diamond Cut Certified Diamonds,Engagement Rings,Diamond Wedding Bands,Diamond Earrings,Custom Design and unique creations, all Hand-Crafted and Designed in a variety of stunning styles Koorosh fine design supplies nation wide at wholesale prices Certified Diamonds,Engagement Rings,Diamond Wedding Bands,Diamond Earrings,Custom Design Diamond-Education-Color-Cut-Carat-Clarity-Buying-a-Diamond-Guide Diamond-Education-Color-Cut-Carat-Clarity-Buying-a-Diamond-Guide



Traditional principles guide the artistry of gem-cutters, including formulas for facet
number/placement/proportions for each standard diamond shape (round, princess, ideal,
marquis, oval, emerald, etc.)  These proportions – especially a gemstone’s depth relative  
to its diameter –  have evolved to maximize brilliance and fire of any given diamond.  A
grading standard for diamond cut is founded on measures how effectively the gemstone
reflects the light that enters it, generating a spectrum of colors.


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The proportions of a well-cut diamond permit it evenly to reflect and refract a burst of that
light and color back to the eye. Diamonds carry grades from Excellent down to Poor:

Excellent: (Top 1%), reflecting virtually all light that enters the gemstone
Ideal:  (Top 3%), reflecting almost all the light that enters the gemstone
Very Good: (Top 15%), reflects almost as much light as “Ideal” stones at lower price
Good: (Top 15%), reflects most of the light that enters the gemstone, at cost considerably
lower than “Very Good”
Fair: (Top 35%), less brilliant (also less expensive) than gemstones graded “Good”
Poor: All other diamonds below the “Fair” grade.


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Shapes


The most important criterion for many diamond clients, however, is shape.  No one shape
is “best,” or better than any other.  It’s purely a matter of personal preference.  Here are
the most popular shapes available in the diamond market today:



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