Jewelry Making
Jewelry Making Basics
Everything You Need to Know About July's Birthstone
By
Lauren Thomann
:max_bytes(150000):strip_icc()/thomann-headshot-1-aeaaee90f25846f59d414f1311b7d385-ddfb1ecd7067482594faffe785ad9673.jpg "23 Must-Know Facts About Rubies (1)")
Lauren Thomann
Lauren Thomann is a jewelry and antiques expert, sharing over 15 years of hands-on experience with DIY jewelry, gemstones, heirlooms, as well as home renovation projects. Her businesses, Ageless Heirlooms and Heirlooms at Home, focus on antiques. Lauren has also studied at the Gemological Institute of America.
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Updated on 07/12/19
Rubies are a fiery staple of the gemstone world. For centuries, rubies have been at the forefront of luxury and lore. What sets this stone apart from less prized gemstones is ruby's inherent beauty. But there's more to rubies than just a beautiful guise. Whether its biblical references or cases of mistaken identity, ruby is a gemstone you'll want to know more and more about. These interesting ruby facts will uncover some of the intrigues behind July's birthstone.
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What Is a Ruby and Where Are They Found?
Ruby is one of the four precious gemstones.The others are emerald, sapphire, and diamond.Ruby comes from the Latin "rubens" meaning red.
Rubies are made of corundum.Corundum comes in many other colors, but those colors are classified as sapphires.Pink corundum is sometimes referred to as pink sapphire and other times is referred to as pink rubydepending on the hue, region, and personal opinion.Ruby gets its red coloring from trace amounts of chromium.
Ruby measures 9 on the Mohs Scale of Hardness, second only to diamond and matched with sapphire. This makes ruby an extremely hard and durable gemstone.
History and Lore
Rubies symbolize power and protection. When worn as atalisman,rubywas believed to help protect warriors in battle. One more modern allusion to this legend is inThe Wizard of Oz. Dorthy's ruby slippers were thought to protect her from evil.
Rubiesare referenced four different times in the bible.TheBibleassociates these gemswith beauty and wisdom.
According to ancient folklore, people of India believed rubies would help them be at peace with their enemies.
Thailand is one of the leading hubs for ruby mining and production, with other leading countries including Madagascar, Sri Lanka, and India.
Famous Rubies
Until the beginning of the 19th century, red spinels were thought to be rubies.Famous stones including"Black Prince's Ruby"and"Timur Ruby" were considered to be rubies until it was discovered that they and many other red stoneswere, in fact,red spinels.
Some famous rubies include the"Rosser Reeves Star Ruby," the"Edwardes Ruby," and the "De Long Star Ruby"
In 2011, an 8.24-caratruby ring belonging to Elizabeth Taylor and made by Van Cleef & Arpels sold at auction for $4.2 million, with the price percaratamounting to approximately $500,000.
The most expensive ruby ever sold was the "Hope Ruby" which weighs 32.08caratsandsold for $6.74 million.
Value
High-quality rubies that weigh over 10caratscan sell for much more than a similar-sized diamond.Some large rubies have fetchedsale prices upwards of $225,000 percarat.Comparably sized diamonds averagea sales price of around$125,000 percarat.Rubies of this magnitude are significantly more rare than larger sized diamonds, which explains the difference in price.
The most desirable shade of ruby is a deep red with a hint of blue which is referred to as "pigeon's blood."
Inclusions (or imperfections) in rubies are to be expected and are generally well tolerated.However, when inclusions impact the transparency or brilliance of the stone, the value of the ruby dramatically decreases.
Many top-qualityrubieshave been mined inMyanmar(formerly Burma), which is where the term "Burmese ruby" comes from.
Synthetic Rubies and Ruby Treatments
Like emeralds, almost all rubies have some type of imperfection, which helps in identifying synthetics.Synthetic rubies can be identified by its lack of inclusions.
Simulated rubies were used in jewelry production since the 1850s.Theseare also known as garnet doublets, where a piece of garnet is fused with a pinkish-red piece of glass.This createsa gem that looks like amuch more expensive ruby.Less expensiveVictorian erajewelry incorporatesthese gems.
Synthetic "flame-fusion" rubies hit the commercial market in the late 1800s.ChemistAuguste Verneuil perfected thismethod and had his ruby material shown at the Paris World's Fair in 1900.
Most modern rubiesare treated to improve their color and durability.Treatments include heat treatment, irradiation, and fracture filling. All treatments should be disclosed to the buyer.
The first-ever functional laser was created with a synthetic ruby crystal by Theodore H. Maiman in1960.Synthetic rubies areused not only in lasertechnology but also in microelectronics.
