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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (11416): 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, Cat's Eye Chrysoberyl, Star Garnet, Alexandrite, Cat's Eye Quartz, Tiger's Eye Matrix, Cat's Eye Sillimanite, Charoite, Rainbow Pyrite Druzy, 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: 4236741 pcs
thumb image of 1.4ct Oval Facet Violet Blue Tanzanite (ID: 423674)
1.43 ct Tanzanite
8.7 x 6.7 mm
$ 185.90
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ID: 3673051 pcs
thumb image of 1.5ct Oval Facet Reddish Orange Fire Opal (ID: 367305)
1.50 ct Fire Opal
8.6 x 7.3 mm
$ 50.07
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ID: 4139681 pcs
thumb image of 18.8ct Oval Cabochon Cream Star Moonstone (ID: 413968)
18.80 ct Star Moonstone
15.6 x 14 mm
$ 75.20
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ID: 4401111 pcs
thumb image of 0.9ct Octagon Facet Green/Pink Color-Change Diaspore (ID: 440111)
0.87 ct Color-Change Diaspore
5.7 x 4.6 mm
$ 24.36
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ID: 32368520 pcs
thumb image of 8.2ct Oval Facet Orangey Brownish Andalusite (ID: 323685)
8.19 ct Andalusite
5.8 x 4.1 mm
$ 409.50
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ID: 4351421 pcs
thumb image of 129.5ct Shark Fin Cabochon Violet Charoite (ID: 435142)
129.51 ct Charoite
49.8 x 41.9 mm
$ 194.26
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ID: 45419410 pcs
thumb image of 1.9ct Pear Facet Violet Blue Tanzanite (ID: 454194)
1.91 ct Tanzanite
5.1 x 3 mm
$ 66.85
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ID: 3934712 pcs
thumb image of 9.7ct Asscher Cut Pink Rose Quartz (ID: 393471)
9.74 ct Rose Quartz
10.6 x 10.5 mm
$ 48.70
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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: 4737781 pcs
thumb image of 38.2ct Round Cabochon Cream Cat's Eye Moonstone (ID: 473778)
38.17 ct Cat's Eye Moonstone
19.1 mm
$ 152.68
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ID: 4724651 pcs
thumb image of 1.9ct Oval Cabochon Green Quartz Cat's Eye (ID: 472465)
1.90 ct Quartz Cat's Eye
9.3 x 7.3 mm
$ 5.70
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ID: 4622011 pcs
thumb image of 19.7ct Oval Cabochon Multicolor Opal (ID: 462201)
19.73 ct Opal
20.3 x 17.5 mm
$ 794.33
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ID: 4545993 pcs
thumb image of 1.9ct Round Facet Green/Pink Color-Change Diaspore (ID: 454599)
1.91 ct Color-Change Diaspore
5.2 mm
$ 61.12
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ID: 4349151 pcs
thumb image of 13.8ct Pear Cabochon Gold Sheen Obsidian (ID: 434915)
13.80 ct Obsidian
24.1 x 14.3 mm
$ 13.80
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ID: 3781971 pcs
thumb image of 12ct Cushion-Cut Violet Blue Tanzanite (ID: 378197)
12.03 ct Tanzanite
13.1 x 12.8 mm
$ 6123.75
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ID: 3974644 pcs
thumb image of 10.2ct Asscher Cut Pink Rose Quartz (ID: 397464)
10.17 ct Rose Quartz
8.6 x 8.5 mm
$ 50.85
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ID: 4680406 pcs
thumb image of 0.7ct Round Cabochon Blue White Rainbow Moonstone (ID: 468040)
0.73 ct Rainbow Moonstone
2.8 mm
$ 7.30
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ID: 3445661 pcs
thumb image of 3.9ct Oval Facet Golden Brown to Orange Color-Change Garnet (ID: 344566)
3.87 ct Color-Change Garnet
10.8 x 8.7 mm
$ 503.10
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ID: 4137986 pcs
thumb image of 1.1ct Pear Facet Violet Blue Tanzanite (ID: 413798)
1.09 ct Tanzanite
4.9 x 3.2 mm
$ 38.15
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ID: 3338251 pcs
thumb image of 68.1ct Oval Cabochon Grayish Blue Pietersite (ID: 333825)
68.06 ct Pietersite
47 x 29.4 mm
$ 272.24
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ID: 3815591 pcs
thumb image of 19.9ct Round Facet Green/Pink Color-Change Diaspore (ID: 381559)
19.90 ct Color-Change Diaspore
15.4 mm
$ 6500.92
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Item in Stock
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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, but many phenomenal gems are surprisingly very affordable. Some examples of gemstone phenomena and popular gem types known to exhibit phenomenal qualities include adularescence, aventurescence, chatoyancy, asterism, iridescence, labradorescence, color change, play of color, pleochroism, fluorescence and tenebrescence.

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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