• Nano Gems - Blue Sapphire Medium - Round
  • video Cool Tools | Nano Gems Introduction by Deb DeWolff
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Nano Gems - Blue Sapphire Medium - Round

Nano Gems - Blue Sapphire Medium - Round

ZAN-017

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Made in China

$7.00 USD
$7.00 USD
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Nano Gems

Nano Crystals are a type of created gemstone made especially for jewelry. The color is homogeneous, meaning that if you bought 100 emerald green nano gemstones, the color would be exactly the same in every stone.

Nano Gems are safe to fire up to 1675°F / 913°C on an open shelf in silver clay, with the exception of the Dark Orange and Orange, which can safely be fired up to 1650°F / 899°C on an open shelf in silver clay. Torch firing is safe for stones 4mm or smaller.

It is very important to fire with an azure, or a hole for light to pass through, behind the gem. The size of the azure should be slightly smaller than the size of the stone. For example, a 4mm stone would benefit from a 3.5mm or 4mm hole. Without an azure, Nano Gems can change color, get muddy or lose luster.

For more information on our testing of Nano Gems please visit our blog post here. 

  • refractive index 1.5 – 1.7
  • density 2.7 – 3.2 g/cm3
  • Mohs scale of hardness 6.5 – 7 mohs
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    Overall rating: 4.866667 / 5 from 15 reviews.

    AI Generated Review Summary

    Summary topics

    Review topics: ["color","stones","exception","medium","look"].

    Review highlights

    Reviews

    Great quality

    "Great stones. Love Cool Tools!!!"

    — Lynn S. (5/5)

    Another Beautiful color

    "A nice medium blue"

    — Anne A. (5/5)

    Another Beautiful color

    "A nice medium blue"

    — Anne A. (5/5)

    nano gem color not as expected

    "I purchased the medium blue sapphire nano gem in 5mm round and they're very pretty. I used it with my pmc+ and no color change after firing. Reason for 4 stars is it's much lighter that what shows on the website. I will, however, purchase other colors going forward."

    — Mary W. (4/5)

    nano gem color not as expected

    "I purchased the medium blue sapphire nano gem in 5mm round and they're very pretty. I used it with my pmc+ and no color change after firing. Reason for 4 stars is it's much lighter that what shows on the website. I will, however, purchase other colors going forward."

    — Mary W. (4/5)

    Beautiful

    "These are beautiful stones."

    — Deborah (5/5)

    Beautiful

    "These are beautiful stones."

    — Deborah (5/5)

    Nano gems

    "Beautiful for metal clay jewelry"

    — Alif (5/5)

    Nano gems

    "Beautiful for metal clay jewelry"

    — Alif (5/5)

    Products great. Staff awesome!

    "Products great. Staff awesome!"

    — Janet L. (5/5)

    Q&A