Every gemstone, explained

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27 of 27 gemstone entries

• Alexandrite Hardness 8.5 Quick view
• Amethyst Hardness 7 Quick view
• Aquamarine Hardness 7.5–8 · March Quick view
• Chrysoberyl Hardness 8.5 · June Quick view
• Citrine Hardness 7 · November Quick view
• Diamond Hardness 10 · April Quick view
• Emerald Hardness 7.5–8 Quick view
• Garnet Hardness 6.5–7.5 Quick view
• Iolite Hardness 7–7.5 Quick view
• Laboratory-grown Laboratory-grown diamond Hardness 10 Quick view
• Laboratory-grown Laboratory-grown moissanite Hardness 9.25 Quick view
• Labradorite Hardness 6–6.5 Quick view
• Moonstone Hardness 6–6.5 Quick view
• Morganite Hardness 7.5–8 Quick view
• Onyx Hardness 6.5–7 Quick view
• Opal Hardness 5–6.5 Quick view
• Pearl Hardness 2.5 Quick view
• Peridot Hardness 6.5–7 · August Quick view
• Rose quartz Hardness 7 Quick view
• Ruby Hardness 9 Quick view
• Salt-and-pepper diamond Hardness 10 Quick view
• Sapphire Hardness 9 Quick view
• Spinel Hardness 8 Quick view
• Tanzanite Hardness 6–7 · December Quick view
• Topaz Hardness 8 Quick view
• Tourmaline Hardness 7–7.5 Quick view
• Zircon Hardness 6–7.5 · December Quick view

Individual gemstones vary · care depends on treatment, setting and condition · birthstone traditions vary · encyclopedia inclusion does not confirm availability.