>Ruby Properties, Buying Guide, Advice
Written by sudha on March 14, 2009>Natural ruby shades vary from light to dark red and rubies often have undertones, such a a purplish cast. The variations add to the charm and individuality of each gemstone.
If you were born in July, ruby is your special birthstone, but ruby jewelry is a universal favorite. We associate the color red with the universal feelings of love and passion, so it’s no wonder that ruby jewelry has always been in demand.
Ruby Hardness
Rubies are rated at 9 on the Mohs’ scale. Compare that to diamonds at 10 and turquoise, which is a relatively soft 5-6.
Ruby Color Variations
Vivid, intense reds similar to the Burmese ruby shown in the photograph are in demand and considered the most desirable gemstones.
Some rubies are red with yellowish to orange tones.
Some rubies are red with blue to purple tones.
Common Ruby Treatments
Nearly all rubies are treated with heat to improve color and clarity.
Dyes are sometimes used to intensify ruby color.
Coatings are used to camouflage surface fractures. Coatings will wear off in time.
Before You Buy Ruby Jewelry
Large, high-quality, natural rubies are very rare and expensive and should be accompanied by a report from a qualified gem lab that certifies their autenticity.
Buy ruby jewelry from reputable dealers who know what they are selling and who disclose all treatments that have been performed on the gemstones.
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