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.
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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 Add to watch list |
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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 Add to watch list |
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8.48 Ct. Surprising Natural Yellow Opal Unheated Gem US $2.70 (3 Bids) End Date: Wednesday Mar-10-2010 9:26:04 PST Add to watch list |
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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 Add to watch list |
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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 Add to watch list |
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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 Add to watch list |
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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 Add to watch list |
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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 Add to watch list |
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Opal Black Australia opals cabachone gemstone Gems US $5.50 (6 Bids) End Date: Wednesday Mar-10-2010 15:22:40 PST Add to watch list |
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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 Add to watch list |
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SOLID GEM Lightning Ridge BLACK OPAL Rough Parcel 417ct US $15.50 (3 Bids) End Date: Wednesday Mar-10-2010 16:40:06 PST Add to watch list |
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SOLID GEM Lightning Ridge BLACK OPAL Rough Parcel 440ct US $103.53 (7 Bids) End Date: Wednesday Mar-10-2010 16:40:09 PST Add to watch list |
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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 Add to watch list |
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ANDAMOOKA GEM OPAL ROUGH ☆ KILLER RED FIRES ! ☆ c/VDO US $59.99 (1 Bid) End Date: Wednesday Mar-10-2010 17:45:27 PST Add to watch list |
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ANDAMOOKA GEM OPAL ROUGH ☆ MASSIVE 22.6 CARATS ! ☆ cVDO US $99.99 (1 Bid) End Date: Wednesday Mar-10-2010 17:50:21 PST Add to watch list |
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GEM QUALITY Queensland CUT Boulder OPAL 22ct US $15.51 (3 Bids) End Date: Wednesday Mar-10-2010 17:52:03 PST Add to watch list |
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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 Add to watch list |
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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 Add to watch list |
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Opal Black Australia opals cabachone gemstone Gems US $2.25 (6 Bids) End Date: Wednesday Mar-10-2010 20:27:22 PST Add to watch list |
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Opal Black Australia opals cabachone gemstone Gems US $1.00 (3 Bids) End Date: Wednesday Mar-10-2010 20:27:25 PST Add to watch list |