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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (10028): Phenomenal Gemstones Star Sapphire, Andalusite, Kyanite, Rose Quartz, Tanzanite, Rainbow Moonstone, Iolite, Star Ruby, Star Moonstone, Moonstone, Cat's Eye Apatite, Fire Opal, Color Change Garnet, Moss Opal, Opal, Opal Doublet, Aventurine, Cat's Eye Tourmaline, Tiger's Eye, Color Change Sapphire, Star Rose Quartz, Pearl, Cat's Eye Scapolite, Labradorite, Fire Agate, Scapolite, Star Diopside, Cat's Eye Aquamarine, Star Sunstone, Cat's Eye Diaspore, Chrysoberyl Cat's Eye, Star Garnet, Alexandrite, Quartz Cat's Eye, Tiger's Eye Matrix, Sillimanite Cat's Eye, Charoite, Rainbow Pyrite, Obsidian, Seraphinite, Color-Change Diaspore, Boulder Opal, Hackmanite Tenebrescence, Ammolite, Pietersite, Chocolate Opal, Black Opal, Cat's Eye Moonstone, Star Lemon Quartz, Hawk's Eye, Actinolite Cat's Eye, Cat's Eye Beryl, Mother of Pearl, Color-Change Fluorite, Opal in Matrix Clear All
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ID: 3776461 pcs
thumb image of 1.4ct Oval Facet Violet Blue Tanzanite (ID: 377646)
1.38 ct Tanzanite
8.6 x 6.6 mm
$ 175.26
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ID: 3150701 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 315070)
1.64 ct Opal
10.6 x 7.8 mm
$ 68.88
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ID: 3953201 pcs
thumb image of 11.3ct Asscher Cut Pink Rose Quartz (ID: 395320)
11.28 ct Rose Quartz
13.6 x 13.6 mm
$ 56.40
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ID: 2266081 pcs
thumb image of 0.7ct Oval Facet Pinkish Rose to Orange Color-Change Garnet (ID: 226608)
0.67 ct Color-Change Garnet
6.1 x 4.1 mm
$ 60.30
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ID: 4399691 pcs
thumb image of 0.7ct Octagon Facet Green/Pink Color-Change Diaspore (ID: 439969)
0.71 ct Color-Change Diaspore
6.3 x 4.4 mm
$ 19.88
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ID: 4170311 pcs
thumb image of 19.4ct Oval Cabochon Cream Star Moonstone (ID: 417031)
19.41 ct Star Moonstone
16.9 x 14.8 mm
$ 77.64
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ID: 3947102 pcs
thumb image of 3.7ct Asscher Cut Pink Rose Quartz (ID: 394710)
3.70 ct Rose Quartz
7.6 x 7.5 mm
$ 18.50
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ID: 3671371 pcs
thumb image of 1.6ct Oval Facet Reddish Orange Fire Opal (ID: 367137)
1.64 ct Fire Opal
9.6 x 7.8 mm
$ 54.69
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ID: 3456862 pcs
thumb image of 3.5ct Oval Facet Violet Blue Tanzanite (ID: 345686)
3.45 ct Tanzanite
9 x 7 mm
$ 438.15
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ID: 29788120 pcs
thumb image of 3.4ct Square Facet Blue White Rainbow Moonstone (ID: 297881)
3.39 ct Rainbow Moonstone
3.1 x 3 mm
$ 88.14
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ID: 2387319 pcs
thumb image of 2.2ct Round Facet Green Peach Andalusite (ID: 238731)
2.16 ct Andalusite
4.1 mm
$ 108.00
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ID: 4623674 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 462367)
1.60 ct Opal
7 x 5.1 mm
$ 64.00
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ID: 4319042 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 431904)
1.82 ct Fire Opal
9.1 x 7.1 mm
$ 48.39
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ID: 4209084 pcs
thumb image of 1.4ct Pear Facet Violet Blue Tanzanite (ID: 420908)
1.40 ct Tanzanite
6.1 x 3.8 mm
$ 61.11
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ID: 3497012 pcs
thumb image of 7ct Drilled Sphere Silver Pink Pearl (ID: 349701)
6.97 ct Pearl
8 mm
$ 34.85
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ID: 3912631 pcs
thumb image of 69.5ct Pear Cabochon Gold Sheen Obsidian (ID: 391263)
69.50 ct Obsidian
41.1 x 33.6 mm
$ 208.50
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ID: 3776301 pcs
thumb image of 31.3ct Cushion Cabochon Multicolor Ammolite (ID: 377630)
31.31 ct Ammolite
28.5 x 18.7 mm
$ 1181.64
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ID: 3391264 pcs
thumb image of 1.1ct Pear Facet Blue White Rainbow Moonstone (ID: 339126)
1.13 ct Rainbow Moonstone
4.9 x 4.9 mm
$ 19.21
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ID: 2169221 pcs
thumb image of 10ct Fancy Cabochon Multicolor Fire Agate (ID: 216922)
10.02 ct Fire Agate
26.4 x 9.7 mm
$ 120.24
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ID: 3446901 pcs
thumb image of 91.7ct Fancy Cabochon Violet Charoite (ID: 344690)
91.73 ct Charoite
36.1 x 26.2 mm
$ 275.19
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ID: 4370293 pcs
thumb image of 1.4ct Round Facet Green/Pink Color-Change Diaspore (ID: 437029)
1.38 ct Color-Change Diaspore
5 mm
$ 22.84
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Phenomenal Gemstones
Phenomenal gemstones are extremely rare and highly prized; truly one of nature's most impressive creations. Gemstone optical phenomena is a result which varies, due to the way light either interacts or interferes with the structural anatomy of any given gemstone. Light interaction or interference can be seen in the form of reflection, refraction, diffraction, scattering, absorption and transmission. There are many different forms of gemstone phenomena, while some effects are quite common, simple and subtle; some are absolutely astounding and dramatic.

Phenomenal gems make excellent gifts for both novice and veteran gem collectors. Most would expect such exotic gemstones to come with a hefty price tag, many phenomenal gems are surprisingly very affordable. Some examples of gemstone phenomena and popular gem types known to exhibit phenomenal qualities include:

  • Adularescence (Opalescence): Moonstone, Opal, Rose Quartz, Moonstone, Rainbow Moonstone
  • Aventurescence (Schiller): Aventurine, Sunstone
  • Cat's Eye Chatoyancy: Chrysoberyl Cat's Eye, Actinolite, Tourmaline
  • Star Chatoyancy (Asterism): Garnet, Sapphire, Lemon Quartz
  • Simple Chatoyancy: Tiger's Eye, Hawk's Eye, Charoite, Pietersite,
  • Iridescence: Ammolite, Rainbow Pyrite. Fire Agate
  • Labradorescence: Labradorite, Spectrolite, Moonstone, Rainbow Moonstone
  • Color Change: Diaspore, Garnet, Sapphire
  • Play of Color: Precious Opal, Black Opal, Chocolate Opal
  • Orient: Pearl, Mother of Pearl
  • Pleochroism: Andalusite, Tanzanite, Kyanite
  • Tenebrescence: Hackmanite, Tugtupite

 

 

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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart