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Gems

Gems. Gemstone: A precious or semi-precious stone. - usually a mineral Gem: A cut or polished gemstone. To be a gem a mineral must be:. Rare beautiful. Hard (> 7) Quality cut or polish. The person who cuts and polishes gems is called a lapidary. Marcel Tolkowsky.

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Gems

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  1. Gems

  2. Gemstone: A precious or semi-precious stone. - usually a mineral Gem: A cut or polished gemstone. To be a gem a mineral must be: • Rare • beautiful • Hard (> 7) • Quality cut or polish

  3. The person who cuts and polishes gems is called a lapidary.

  4. Marcel Tolkowsky Creator of the Brilliant Cut

  5. Gabi Tolkowsky

  6. There are two basic cutting styles: • Cabochon • Faceted Cabochon: rounded surfaces Faceted: flat surfaces organized in a pattern

  7. Cabochon Amethyst Black star diopsid Emerald

  8. Faceted Emerald Cut Emerald Amethyst Aquamarine

  9. Faceted Brilliant Cut Amethyst Ruby Tourmaline

  10. Faceted Oval Cut, Square Cut, Heart Cut Sapphire Citrine Aquamarine

  11. Faceted

  12. Diamond pure carbon April birthstone (along with Crystal Quartz)

  13. Emerald Beryl May birthstone (along with Chrysoprase)

  14. Ruby Corundum July birthstone (along with Carnelion)

  15. Sapphire Corundum September birthstone (along with Lapis)

  16. Aquamarine Beryl March birthstone (along with Bloodstone)

  17. Opal Quartz October birthstone (along with Tourmaline)

  18. Tourmaline October birthstone (along with Opal)

  19. Garnet January birthstone (along with Rose Quartz)

  20. Topaz November birthstone (along with Citrine)

  21. Citrine Quartz November birthstone (along with Topaz)

  22. Apatite Gold Beryl Other Gemstones Sunstone Smokey Quartz

  23. Birthstones • January: Garnet or Rose Quartz • February: Amethyst or Onyx • March: Aquamarine or Bloodstone • April: Diamond or Rock Crystal • May: Emerald or Chrysoprase • June: Alexandrite or Moonstone • July: Ruby or Carnelian • August: Peridot or Sardonyx • September: Sapphire or Lapis • October: Opal or Tourmaline • November: Topaz or Citrine • December: Zircon or Turquoise

  24. Synthetic Gems

  25. Synthetic Gems Cubic Zirconium

  26. 4 C’s: Clarity

  27. 4 C’s: Color

  28. 4 C’s: Cut

  29. 4 C’s: Cut

  30. 4 C’s: Carat

  31. Tolkowsky’s Cut

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