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Sun Yin Crystal Industry Co Ltd
Sapphire Crystal Rings Watch Accessories
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The featured colour ring is made of sapphire crystal and has high luster and excellent hardness. It comes in a modern design and has excellent quality. This sapphire glass flaunts a neat and luxury appearance and makes an excellent component for high end accessory and watch components.

  • High-quality sapphire crystal glass
  • With anti-impact and anti-scratch features.
  • With high electrical resistance.
  • With high corrosion resistance. 
  • Features great thermal stability.
  • Features a high melting temperature of 2030 °C.
  • With a high hardness of 9 Mohs, which is second to diamond.
  • High quality.
  • Excellent component for high end watches and jewellery. 
  • Vickers hardness: 2000 - 2500 daN/mm2.
  • Optical properties: 1.760.
  • Available in customized designs.

Sun Yin Crystal Industry Co Ltd

Sun Yin Crystal Industry Co Ltd

Hong Kong


Average Response Time

3 - 7 days

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