Buying & Value
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Emerald Quality Grading: 9 Ways to Rate Color, Clarity & Origin
Emerald quality grading begins with color, but a dependable grade must also account for transparency, jardin, treatment, cut, size, natural…
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Emerald Price Per Carat: 10 Critical Cost & Rarity Factors
Emerald price per carat can range from a few hundred dollars for pale, heavily included commercial stones to several thousand…
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Diaspore Quality Grading: 8 Key Standards for Rare Crystals
Diaspore quality grading should focus on the complete optical performance of the gemstone rather than simply asking whether it changes…
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Diaspore Price Per Carat: 9 Value Factors for Color-Change Gems
Diaspore price per carat can range from relatively modest levels for pale, included, weakly changing stones to several hundred dollars…
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Diamond Quality Grading: 10 Essential Rules to Rate Cut & Clarity
Diamond quality grading is built around carat weight, color, clarity, and cut, but a reliable assessment requires more than memorizing…
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Diamond Price Per Carat: 12 Key Factors Shaping True Worth
Diamond price per carat can vary from a few thousand dollars to tens of thousands of dollars for natural colorless…
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Demantoid Garnet Quality Grading: 8 Essential Tests for Value
Demantoid garnet quality grading should begin with confirming that the stone is green andradite, then move through color, tone, dispersion,…
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Demantoid Garnet Price Per Carat: 11 Rarity & Cost Drivers
Demantoid garnet price per carat can rise quickly because fine transparent stones with strong green color, high brilliance, and useful…
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Cubic Zirconia Quality Grading: 9 Key Signs of High-Grade Brilliance
Cubic zirconia quality grading should focus primarily on cut precision, polish, color neutrality, transparency, manufacturing cleanliness, proportions, symmetry, surface condition,…
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Cubic Zirconia Price Per Carat: 8 Factors That Determine Value
Cubic zirconia price per carat is usually far lower than the price of natural diamond because jewelry-grade cubic zirconia is…
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