Buying & Value
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Boulder Opal Price: Quality & Value, Grade, Supply & Demand
Boulder opal can sell from less than $20 per carat for matrix-heavy commercial material to several hundred dollars per carat…
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Buy Boulder Opal: Smart Buying, Quality, Disclosure & Price
If you want to buy boulder opal, judge the visible precious opal first and the total carat weight second. Fine…
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Black Opal Price: Typical Value Drivers, Color, Quality & Market Demand
Black opal can range from roughly $100 per carat for lower commercial material to several thousand dollars per carat for…
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Buy Black Opal: Buying Criteria, Color, Clarity & Value
Buying black opal well requires more than finding the darkest stone or the largest carat weight. The strongest purchase combines…
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Benitoite Price: How Value Is Judged, Quality, Size & Origin
Benitoite commonly costs about $1,500 to $4,500 per carat for fine faceted material around the one-carat level, although smaller commercial…
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Buy Benitoite: Smart Buying, Origin, Quality & Red Flags
If you want to buy benitoite, focus first on verified identity and California provenance, then judge blue color, clarity, cut,…
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Aquamarine Price: Value Guide, What Raises or Lowers Cost
Aquamarine commonly sells for about $50 to $300 per carat across much of the natural faceted retail market, although the…
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Buy Aquamarine: Purchase Checklist, Treatments, Grading & Cost
If you want to buy aquamarine, prioritize color first, then clarity, cut, carat weight, treatment disclosure, and documentation when the…
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Andalusite Price: Quality & Value, What Raises or Lowers Cost
Andalusite commonly sells for about $20 to $150 per carat in today’s loose-gem retail market, although higher-quality stones can reach…
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Buy Andalusite: Buyer Priorities, Authenticity, Origin & Price
If you want to buy andalusite, prioritize attractive pleochroism, good face-up color, transparency, intelligent cutting, and a price appropriate to…
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