Types of Opal

There are many different types of opal in the world, including natural and man-made. Natural opal is also named solid opal. Man-made opal includes doublets, triplets and treated opal.

dendritic-opal-gems-925-sterling-silver-pendant-1-1-2- DENDRITIC OPAL GEMS .925 STERLING SILVER PENDANT 1 1/2"
US $10.05 (5 Bids)
End Date: Wednesday Mar-10-2010 4:10:57 PST
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8x12mm-sri-lanka-green-oval-opal-loose-bead-gems-15- 8x12mm Sri Lanka Green Oval Opal Loose Bead Gems 15''
US $1.81 (2 Bids)
End Date: Wednesday Mar-10-2010 5:24:07 PST
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8-48-ct-surprising-natural-yellow-opal-unheated-gem 8.48 Ct. Surprising Natural Yellow Opal Unheated Gem
US $2.70 (3 Bids)
End Date: Wednesday Mar-10-2010 9:26:04 PST
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j1718-925-sterling-silver-fire-white-opal-gem-ring- J171#8 925 STERLING SILVER FIRE WHITE OPAL GEM RING
US $19.38 (11 Bids)
End Date: Wednesday Mar-10-2010 9:50:35 PST
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3-45ct-genuine-aaa-gem-ethiopia-rainbow-color-play-opal 3.45CT.GENUINE AAA GEM ETHIOPIA RAINBOW COLOR PLAY OPAL
US $6.50 (2 Bids)
End Date: Wednesday Mar-10-2010 14:00:58 PST
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28+ct-huge-aaa-gem-ethiopia-rainbow-color-play-opal-nr 28+CT.HUGE AAA GEM ETHIOPIA RAINBOW COLOR PLAY OPAL NR
US $15.77 (2 Bids)
End Date: Wednesday Mar-10-2010 14:22:15 PST
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new!-a1188-5-fire-opal-925-sterling-silver-gem-ring NEW! A118#8.5 FIRE OPAL 925 STERLING SILVER GEM RING
US $2.22 (2 Bids)
End Date: Wednesday Mar-10-2010 14:36:36 PST
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new!-a1166-5-fire-opal-925-sterling-silver-gem-ring NEW! A116#6.5 FIRE OPAL 925 STERLING SILVER GEM RING
US $2.25 (2 Bids)
End Date: Wednesday Mar-10-2010 14:40:51 PST
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opal-black-australia-opals-cabachone-gemstone-gems Opal Black Australia opals cabachone gemstone Gems
US $5.50 (6 Bids)
End Date: Wednesday Mar-10-2010 15:22:40 PST
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dendritic-opal-gems-925-sterling-silver-pendant-1-1-2- DENDRITIC OPAL GEMS .925 STERLING SILVER PENDANT 1 1/2"
US $6.50 (3 Bids)
End Date: Wednesday Mar-10-2010 15:45:50 PST
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solid-gem-lightning-ridge-black-opal-rough-parcel-417ct SOLID GEM Lightning Ridge BLACK OPAL Rough Parcel 417ct
US $15.50 (3 Bids)
End Date: Wednesday Mar-10-2010 16:40:06 PST
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solid-gem-lightning-ridge-black-opal-rough-parcel-440ct SOLID GEM Lightning Ridge BLACK OPAL Rough Parcel 440ct
US $103.53 (7 Bids)
End Date: Wednesday Mar-10-2010 16:40:09 PST
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3-88-ct-natural-pear-yellow-opal-unheated-mexico-gem 3.88 Ct. Natural Pear Yellow Opal Unheated Mexico Gem
US $7.99 (1 Bid)
End Date: Wednesday Mar-10-2010 17:08:03 PST
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andamooka-gem-opal-rough-☆-killer-red-fires-!-☆-c-vdo ANDAMOOKA GEM OPAL ROUGH ☆ KILLER RED FIRES ! ☆ c/VDO
US $59.99 (1 Bid)
End Date: Wednesday Mar-10-2010 17:45:27 PST
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andamooka-gem-opal-rough-☆-massive-22-6-carats-!-☆-cvdo ANDAMOOKA GEM OPAL ROUGH ☆ MASSIVE 22.6 CARATS ! ☆ cVDO
US $99.99 (1 Bid)
End Date: Wednesday Mar-10-2010 17:50:21 PST
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gem-quality-queensland-cut-boulder-opal-22ct GEM QUALITY Queensland CUT Boulder OPAL 22ct
US $15.51 (3 Bids)
End Date: Wednesday Mar-10-2010 17:52:03 PST
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huge-gem-opal-rub-from-lightning-ridge-42-85-carats!!!! HUGE GEM OPAL RUB FROM LIGHTNING RIDGE 42.85 CARATS!!!!
US $42.43 (6 Bids)
End Date: Wednesday Mar-10-2010 18:32:41 PST
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white-fire-opal-925-sterling-silver-gems-ring-7-r252 WHITE FIRE OPAL 925 STERLING SILVER GEMS RING #7 R252
US $2.27 (3 Bids)
End Date: Wednesday Mar-10-2010 19:00:07 PST
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opal-black-australia-opals-cabachone-gemstone-gems Opal Black Australia opals cabachone gemstone Gems
US $2.25 (6 Bids)
End Date: Wednesday Mar-10-2010 20:27:22 PST
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opal-black-australia-opals-cabachone-gemstone-gems Opal Black Australia opals cabachone gemstone Gems
US $1.00 (3 Bids)
End Date: Wednesday Mar-10-2010 20:27:25 PST
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