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Complimentary Engraving

Add a free laser engraved message (up to 20 characters) to any watch over $300. Just add your watch to the cart, click on "Engrave" to add your personal message and then add code ENGRAVE during checkout.

Complimentary engraving cannot be used on sale items or private offers and cannot be combined with any other promo code.

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Sapphires « Back to Education

  • DIAMONDS

    DIAMONDS

        
  • WATCHES

    WATCHES

        
  • JEWELRY

    Jewelry

        
  • PEARLS

    PEARLS

        
  • RUBIES

    RUBIES

        
  • SAPPHIRES

    SAPPHIRES

        
    • History
    • Understanding Sapphires
    • Color
    • Mining Location
    • Clarity
    • Cut

      Cut

      The best sapphire cuts offer a depth/width ratio higher than comparable diamond cuts. Expect a depth percentage of 65% to 80% for good quality sapphires (the depth percentage is depth/width). Stones that are too deep will look smaller than expected but they will show off more color than they would if they were cut to normal proportions. Deep-cut stones also preserve weight, increasing the cost of the stone without the expected increase in the size of the crown (top portion of the gem). Stones that are too shallow will look big for their weight and appear lighter in color than deeper-cut stones.

      Good quality sapphires also have good symmetry when viewed in profile - reflecting the light evenly.

      Sapphire Cut Diagram

      Overall Grade

      The overall grade is determined by looking at Hue, Tone, Color-Purity, Clarity, Transparency and Cut.
      Overall grade scores: Poor, Fair, Good, Very Good, Exceptional (Best)
      In Association with Amazon.com

      Buy Books about Diamonds and Gems

      Gemnation has partnered with Amazon.com to bring you
      the most relevant diamond, gem and ring buying books and guides.
    • Treatments
    • Gemnation Sapphires
  • BOOKS

    BOOKS

  • GLOSSARY

    GLOSSARY

Cut

The best sapphire cuts offer a depth/width ratio higher than comparable diamond cuts. Expect a depth percentage of 65% to 80% for good quality sapphires (the depth percentage is depth/width). Stones that are too deep will look smaller than expected but they will show off more color than they would if they were cut to normal proportions. Deep-cut stones also preserve weight, increasing the cost of the stone without the expected increase in the size of the crown (top portion of the gem). Stones that are too shallow will look big for their weight and appear lighter in color than deeper-cut stones.

Good quality sapphires also have good symmetry when viewed in profile - reflecting the light evenly.

Sapphire Cut Diagram

Overall Grade

The overall grade is determined by looking at Hue, Tone, Color-Purity, Clarity, Transparency and Cut.
Overall grade scores: Poor, Fair, Good, Very Good, Exceptional (Best)
In Association with Amazon.com

Buy Books about Diamonds and Gems

Gemnation has partnered with Amazon.com to bring you
the most relevant diamond, gem and ring buying books and guides.
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