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BESTINGEMS

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Knowledge Center

• Trade-Show Tickets
• Gemstone Certification
• Important Links
• Birthstones
• Anniversary Stones
• Gemstone's Hardness
• Gemstone Jewelry Care and Cleaning
• Gemstone's Treatments
• Gemstone's Cutting & Shapes
• Gemstone's Clarity
• US Ring Sizing Chart: To Scale Printable Chart
• Precious Vs. Semi-Precious Gemstones
• Opals (October Birthstone)