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Round Cut Dark Blue 6.8mm/1.28ct Thailand Sapphire Loose Gemstone

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This unusual round-faceted cut dark blue 1.28ct Sapphire from Thailand is available for a custom-built ring by Nodeform Jewelry.

Select a ring setting that fits the shape and size of this selected one-of-a-kind gemstone. Add both to your cart and we'll create your ring!

The well-cut gemstone has a stunning deep blue color. In LED lighting it shows some teal green areas but outside in natural light, it's mostly a dark blue color. This gemstone will look best in more open settings like prongs and half bezel settings that let more light in. For a full bezel setting, it may be too dark (unless you prefer dark stones).

Sapphire specification:

  • Mined Genuine Sapphire
  • Weight: ~1.28ct
  • Size: 6.8 x 3.6 mm
  • Cut: Round Modified Brilliant Cut
  • Treatment: Heated
  • Color: Dark Blue with a hint of teal green tones in some lighting
  • Clarity:  eye clean
  • Origin: Thailand

About Heat Treatments: Some colored gemstones are routinely heated for color and clarity improvement. This is a permanent treatment and typically only involves heat and not chemicals. The treatment mimics what the earth does naturally to gemstones as they reach the surface. 

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Made with recycled precious metals

We use recycled metals derived from post-consumer sources, including recycled jewelry and industrial products. The goal is to reduce or even better eliminate the need for additional mining of precious metals.  Learn more about the different precious metals we use in our jewelry and their pros and cons. 

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