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EMERALD, the green variety of beryl

VARIETY INFORMATION:

  • VARIETY OF: Beryl , Be3 Al2 Si6 O18 .
  • USES: Gemstone.
  • BIRTHSTONE FOR: May
  • COLOR: various shades of green.
  • INDEX OF REFRACTION: 1.57 - 1.60
  • BIREFRINGENCE: 0.004 - 0.008
  • HARDNESS: 7.5 - 8
  • CLEAVAGE: one direction, poor.
  • CRYSTAL SYSTEM: hexagonal
  • Pleochroic: weak
  • For natural emerald mineral specimens see our For Sale or Sold lists
    For Emerald Jewelry, see -->  Emerald JEWELRY

Emerald is the green variety of the mineral beryl. Other gemstone color varieties that belong to beryl include aquamarine, morganite, heliodor, and goshenite. Other colors of beryl are simply referred to by their color, such as red beryl.

The wonderful green color of emerald is unparalleled in the gem kingdom. Emerald's precious green color is caused by small amounts of chromium and enhanced by traces of iron. Unlike other beryls, emeralds often contain inclusions and other flaws. These flaws are not looked on as negative aspects for emerald like they would be for other gemstones. Indeed, these flaws are considered part of the character of the stone and are used to assure the purchaser of a natural stone. However, fractures and inclusions are so common in emeralds that their toughness is affected - emeralds tend to break more easily than other beryls.

Nearly all emerald gemstones have been treated to improve their appearance. Historically, gems were "oiled" which filled the cracks and veils with a transparent oil, effectively hiding the flaw. Unfortunately, oils tend to evaporate over the years (and they may be removed with detergents) so that oil-treated emeralds tend to look worse over time. Luckily, the treatment may be repeated to good effect. In recent times, the cracks are filled with a permanent epoxy so evaporation of oil is not an issue.

In any case, you should expect an emerald to be treated. Note that oil (or polymer resin) treatments are considered acceptable in the gem trade, unless colored oils are used to change the color. For fine gemstones, treatments are required to be disclosed by the U.S. Federal Trade Commission.

Emerald is mined around the world, although certain localities provide the best gemstones. Columbia is especially notable, producing fine deep-green emeralds of excellent transparency. Brazil and Pakistan are other notable sources of fine emeralds.

Emerald Jewelry - Hover over an item for more information
Women's Zulu Halter One-Piece Swimsuit, Emerald Green - Lazul
Halter neckline ties behind neck. Bands cross at front; ruched detail. Full seat coverage. Polyamide/spandex. Made in Portugal of Italian material. Model's measurements: Height 5'10in/177cm, bust 34in/86cm, waist 24.5in/62cm, hips 35in/89cm, bra size...Only $212.00 at Neiman Marcus
no photoWomen's Zulu Halter One-Piece Swimsuit, Emerald Green - Lazul
$212.00
Neiman Marcus
"18k yellow Gold 1.2 Inches Emeralds Cross Pendant"
"18K yellow Gold 0.35Ct emeraldsÿCross pendant; measures 18mm W ÿÿor (11/16 inches) x 31.8mm H ÿor (1.20 inches) including hook. G159.00enuan naturalÿÿEmeralds."Only $159.00 at Sarraf Jewelry
no photo"18k yellow Gold 1.2 Inches Emeralds Cross Pendant"
$159.00
Sarraf Jewelry
"Rare Beauty" Emerald And Diamond Eternity Ring Jewelry
Make every day more spectacular when you wear this breathtaking emerald and diamond ring! A fabulous expression of style available exclusively from The Bradford Exchange, it unites a unique fine jewelry design with a wealth of dazzling gems to wrap you...Only $249.00 at The Bradford Exchange Online
no photo"Rare Beauty" Emerald And Diamond Eternity Ring Jewelry
$249.00
The Bradford Exchange Online
Ross-Simons 5.10 ct. t.w. Emerald Stud Earrings in 14kt Yellow Gold
Make a statement about going green with our exceptional 5.10 ct. t.w. emerald stud earrings, suitable for even the daintiest ears! Post/clutch, 14kt yellow gold earrings. Emerald birthstones are the perfect gift for May birthdays.Only $123.75 at Ross-Simons
no photoRoss-Simons 5.10 ct. t.w. Emerald Stud Earrings in 14kt Yellow Gold
$123.75
Ross-Simons
Ross-Simons 8.00ct Prasiolite, .20ct t.w. Emerald Ring, 14kt Yellow Gold in Silver
Wrap your finger in an elaborate garden with this gorgeous floral openwork ring. Among the fanciful swirls and textures, an 8.00 carat oval prasiolite shines with two round emeralds totaling .20 carats. Sterling silver ring with touches of 14kt yellow...Only $105.00 at Ross-Simons
no photoRoss-Simons 8.00ct Prasiolite, .20ct t.w. Emerald Ring, 14kt Yellow Gold in Silver
$105.00
Ross-Simons
Ross-Simons .85ct Emerald Pendant Necklace, Diamond Accents in 14kt Yellow Gold
Here's a refreshing and elegant pendant necklace featuring an .85 carat oval emerald sprinkled with diamond accents! Includes box chain. Necklace is set in 14kt yellow gold. Emerald birthstones are the perfect gift for May birthdays.Only $262.50 at Ross-Simons
no photoRoss-Simons .85ct Emerald Pendant Necklace, Diamond Accents in 14kt Yellow Gold
$262.50
Ross-Simons
Oval Emerald and Diamond Right-Hand Ring 14K Yellow Gold (0.30ctw)
This stunning 14K white gold ring features a 5x3mm genuine natural oval Emerald complemented by a round diamond on each side of the center stone, all beautifully set in a prong setting. Also available with other gemstones.Only $197.00 at Allurez.com
no photoOval Emerald and Diamond Right-Hand Ring 14K Yellow Gold (0.30ctw)
$197.00
Allurez.com
Ross-Simons .30ct t.w. Emerald, .20ct t.w. Diamond Hoop Earrings. Hoop Earrings
Go green with .30 ct. t.w. emeralds surrounded by the sparkle of .20 ct. t.w. diamonds. Clip/post, 14kt yellow gold earrings. Gemstones do not go around entire earring. Emerald birthstones are the perfect gift for May birthdays.Only $371.25 at Ross-Simons
no photoRoss-Simons .30ct t.w. Emerald, .20ct t.w. Diamond Hoop Earrings. Hoop Earrings
$371.25
Ross-Simons
Sterling Silver Emerald, Ruby Ring Jewelry
This Ring was handmade by a master artisan and is one of a kind.Only $221.24 at JeGem.com
no photoSterling Silver Emerald, Ruby Ring Jewelry
$221.24
JeGem.com
Cathedral Green Emerald Diamond Engagement Ring 14k Yellow Gold 0.22ct
Put a smile on her face with this semi-eternity emerald gemstone engagement ring in 14k yellow gold . It features exquisite emeralds weighing in at approximately 0.16cts and 0.06cts of beautiful diamond side stone accents lining the shank in a...Only $673.66 at Allurez.com
no photoCathedral Green Emerald Diamond Engagement Ring 14k Yellow Gold 0.22ct
$673.66
Allurez.com
Ross-Simons .50ct t.w. Emerald, .25ct t.w. White Sapphire Ring in 14kt White Gold
This ring alternates rounds of .50 ct. t.w. emerald with .25 ct. t.w. white sapphire for a look that is simply sensational. The design is great for both everyday wear and formal attire, making it an ideal gift for you or someone you love. 14kt white...Only $350.00 at Ross-Simons
no photoRoss-Simons .50ct t.w. Emerald, .25ct t.w. White Sapphire Ring in 14kt White Gold
$350.00
Ross-Simons
Enameled Deco Cuff with Crystals, Black - Kenneth Jay Lane
Kenneth Jay Lane enamel cuff bracelet with Deco detailing. Golden jeweler's metal setting. Emerald/lapis-colored glass cabochons. Faceted pave crystals. Hinged kick segment for slip-on style. 8 1/2in circumference. 1 3/4inW. Made in USA.Only $350.00 at Neiman Marcus
no photoEnameled Deco Cuff with Crystals, Black - Kenneth Jay Lane
$350.00
Neiman Marcus
Ross-Simons .70ct t.w. Emerald Floral Earrings, Diamond Accents in Gold
Dreamy emeralds in a feminine floral pattern are a refreshing burst of happiness on the ear. Gleaming, green emeralds with a .70 ct. t.w. mingle with sparkling, diamond accents. Post/clutch, 14kt yellow gold earrings. Emerald birthstones are the...Only $243.75 at Ross-Simons
no photoRoss-Simons .70ct t.w. Emerald Floral Earrings, Diamond Accents in Gold
$243.75
Ross-Simons
Emerald Ring with Diamonds 1.29 Carat (ctw) in 14K White Gold
Emerald Ring with Diamonds 1.29 Carat (ctw) in 14K White Gold #08ES45175EMW. This beautiful gemstone ring radiates simple elegance. A stunning 1.05 carat emerald gleams between two shimmering diamonds (1/4 carat). The icy sparkle of diamonds contrasts...Only $699.00 at MyJewelryBox.com
no photoEmerald Ring with Diamonds 1.29 Carat (ctw) in 14K White Gold
$699.00
MyJewelryBox.com
"14k Yellow Gold 15mm Wide Men's Oval Synthetic Emerald Center Stone Ring"
"14K Gold Men's Oval Synthetic Emerald Center Stone ring; measures approximately 15mm Wide at the top. Made In USA"Only $373.00 at Sarraf Jewelry
no photo"14k Yellow Gold 15mm Wide Men's Oval Synthetic Emerald Center Stone Ring"
$373.00
Sarraf Jewelry

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