Gemstone Information Gemstone Buying Tips
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Caring for Your Jewelry
Jewelry is wonderful but easily damaged. Try to protect any jewelry from scratches, sharp blows, harsh chemicals, extreme temperatures and sunlight.
- Store jewelry separately so it doesn't scratch other jewelry.
- When doing household tasks such as gardening and cleaning, be certain to re move rings.
- Put your jewelry on after washing and applying any makeup/hair spray.
- Take off jewelry before swimming in a swimming pool. The chlorine can cause damage to various gemstones and gold. Gemstones may become loose in their settings (and possibly fall out).
- Before doing high impact sports take off your jewelry as you may scratch the metal or chip the gemstones.
- Avoid storing your jewelry next to a heating vent, window sill or on a car dashboard.
- Store jewelry away from sunlight as the sun may fade the gemstones.
- Always store bead necklaces (such as lapis, pearls, etc) flat as silk stretches over time.
Jewelry Hardness: How Gemstones and Jewelry are Scratched
Hardness is based on a gem-trade standard called the Mohs scale. The higher the Mohs scale number, the harder the stone is. The highest Mohs scale rating is 10 (diamonds). Anything with a Mohs scale rating of less than 7 is easily scratched (such as coral, lapis lazuli, opal, pearl, and turquoise). Gold, silver, and platinum are only Mohs 2-1/2 to 4. Always carefully store any fine jewelry.
Check Jewelry Ring Mounts
Be certain that stones mounted in rings are not loose or rattle. The prongs of a ring can and do wear down. If the prongs wear down too much or break, you've lost the stone. Prongs are easily "retipped" by most jewelers to keep the stone secure.
Store Gemstones out of the Sun
Common gemstones that are damaged in sunlight (there may be more):
- Amethyst: becomes paler
- Ametrine: may change color
- Apatite: pink variety fades
- Aquamarine: becomes paler
- Aventurine: translucent types often lose color
- Beryl: brown or orange types may change to pale pink
- Celestite: fades in direct sunlight
- Chrysoprase: becomes paler
- Citrine: may change color
- Fluorite: green and purple types change color
- Kunzite: becomes pale or loses color
- Rose Quartz: becomes paler
- Smokey Quartz: becomes paler
Store Bead Necklaces Flat
If you have bead necklaces such as a beautiful strand of lapis or pearls, store them flat as silk stretches over time. Stretched bead necklaces easily come apart. When knotted necklaces stretch, it also really detracts from their beauty. Most jewelers will restring necklaces or reset gemstones (for a fee).
Sterling silver jewelry will polish up by rubbing or buffing it with a soft cotton cloth or a Sunshine Cloth. If you store silver jewelry in plastic bags with an interlocking seal, it will be less prone to tarnish. (Do NOT store your pearl jewelry in plastic bags!)
Jewelry BooksGemstone Books:
- Gem Identification Made Easy: A Hands-On Guide to More Confident Buying & Selling New 2nd Edition - by Antoinette L. Matlins & Antonio C. Bonanno
This book is really great for knowing he latest gems, synthetics, treatments, and instruments. Easy to use.
- Gemstone Buying Guide: How to Evaluate, Identify, Select & Care for Colored Gems - by Renee Newman
Very nice gemstone identification book.
- Simon and Schuster's Guide to Gems and Precious Stones - by C. Ciprianai, Kennie Lyman (Editor), Alessando Borelli
This book is one inch thick and every facing page has a full color photo of gems or precious stones. Hardness, weights, cuts, refractions, and value of color are provided for each gem.
- Standard Catalog of Gem Values - by Anna M. Miller, John Sinkankas (Contributor)
General book on gemstones.
- Gold Jewelry Buying Guide - by Renee Newman
How to buy gold jewelry.
- Thanks to Amazon.com for fast, efficient, and reliable book processing