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Astor by Blue Nile™
Every Astor by Blue Nile™ Diamond is cut to gather and reflect the most light possible. Light performance is measured by three factors: brilliance, fire and sparkle. Fewer than 15 out of every 10,000 diamonds qualify as an Astor by Blue Nile™ diamond.See Astor by Blue Nile™ Diamonds
This rare cut represents roughly the top 3% of diamond cut quality. It reflects most light that enters the diamond.See Ideal Cut Diamonds
Very Good Cut
This cut represents roughly the top 15% of diamond cut quality. It reflects nearly as much light as the ideal cut, but for a lower price.See Very Good Cut Diamonds
This cut represents roughly the top 25% of diamond cut quality. It reflects most light that enters, but not as much as a Very Good cut grade.See Good Cut Diamonds
Represents roughly the top 35% of diamond cut quality. These diamonds tend to appear dull or glassy.
Low grade not offered by Blue Nile.
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