Posted by admin | Posted in Uncategorized | Posted on 08-09-2008
Tags: amethyst silver earrings, amethyst silver jewelry, amethyst silver necklace, amethyst silver pendants, amethyst silver ring
Cat’s Eyes and Star Diamonds – Bad is Sometimes Better
From cheap emerald cut engagement rings. Cats eyes and stars appearing in Gems are still considered inclusions but of a unique type. While the presence of inclusions in often detrimental to the value and looks of Diamonds, cats eyes and stars have the opposite effect. These may occur naturally or man-made but ultimately, they enhance the beauty of Diamonds. Use the following tips when shopping for Diamonds with stars and cats eyes.
What You Need to Know about Cats Eye
Cats eye is a product of chatoyance or chatoyancy. It is an optical effect brought by a certain light intensity emitting in a specified direction from the Gemstones surface. Cats eye may either be produced by fibrous cavities or inclusions, such as the case of cats eye in chrysoberyl, or fibrous structures like cats eye in quartz.
The effects of chatoyancy can also be achieved in woodworking and providing products with 3D appearances.
Chrysoberyl This Diamond is arguably the most popular Diamond for its cats eye inclusions. Chrysoberyl is often mistakenly believed to be under the beryl group of stones. In truth, chrysoberyl is not part of the beryl group, but aquamarines and emeralds are. Chrysoberyl are mostly found in East Africa, Sri Lanka, and Brazil.
This Diamond registers the third highest rating in the Mohs Scale for naturally occurring stones. There are three types of chrysoberyl: alexandrite, the more common yellow chrysoberyl, and lastly cymophane or cats eye.
Common chrysoberyl is yellowish-green. It may be translucent or transparent. If it turns yellow and see-through, that’s the time it can be used as a Diamond. Alexandrite, on the other hand, has colors varying from orange-yellow to red to emerald-green. It can display even other colors if seen under artificial lighting.
Lastly, there’s cymophane or the chrysoberyl cats eye. Its name was derived from its similarities with a cats eye, showing a silk-like spread of light stretching from a light-green source.
Beryl Certain Diamonds belong to the beryl group can also display chatoyant features. This includes golden and green beryl, aquamarine, and emerald. The effects are, however, not as intense as those in chrysoberyl and therefore needs special mounting to strengthen the look and feel of its cats eye.
Quartz This is the most abundant mineral in the Earths crust. Not all of the minerals belong to the quartz group are able to display cats eye on their surfaces. Those that can are rose quartz, citrine, smoky quartz, cats eye quartz, and amethyst. Some believe that cats eye quartz are able to help improve vision problems, self-healing, concentration, and psychic abilities, as well as provide better judgment.
What You Need to Know about Star Gems
Stars in Gemstones occur mainly because of asterism. It is another optical effect caused by a certain reflective portion of the Gem. There are two kinds of asterism that occur in Diamonds.
Disasters Stars appear when light is transmitted through the Gem. It will only be visible, however, if light illuminates the Diamond from the back. Rose quartz exhibits this effect.
Epiasterism This occurs mostly with rubies and sapphires. Light this time is reflected on inclusions positioned in parallel with each other.
Star Gems come in a wide variety. For sapphires and rubies, there are yellow, purple, gray, black, blue, silver, white, and 12-ray stars. Burma and Sri Lanka are the top producers of star sapphires and rubies. Other Gems with stars possibly appearing on their surfaces include sunstones, garnets, rutiles, quartz, diopside, citrine, moonstone, prasiolite, and chrysoberyl as well.
How to Shop for Star and Cats Eye Gemstones
Light A single light source like a candle, light bulb, or even sunlight is best used when judging the quality of stars and cats eyes in a given Gemstone. This type of lighting will reduce chances of blurring and make it easier for you to determine the intensity of these much-coveted inclusions.
Distinction The appearance of the cats eye or star must be clearly distinct from the body of the Gemstone.
Size How far does the star or cats eye extend? Bigger size is better, but some clients may prefer a more subtle effect.
Color More specifically, color for stars in Gemstones differ. It is up to you to choose which appeal to you the most.
Lastly, remember that all Diamonds with stars and cats eyes are cabochon cut to maximize their effects. Thus, viewing uncut Gemstones won’t yield accurate results.
For more see original princess cut engagement rings and discount affordable diamond engagement rings.
Jay King Amethyst Dangle Sterling Silver Earrings
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.925 Silver PERIDOT GARNET AMETHYST Nice Pendant 3.8CM $12.50 |
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Unique Amethyst Gemstone Jewelry Gems Silver Ring Size #6 B188 $0.99 |
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925 Sterling Silver AMETHYST PRETTY Studs Earrings .9CM $7.50 |
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51.50 CT AMETHYST GEM 925 SILVER PENDANT JEWELRY 1002 $110.00 |
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2pcs 925 Sterling Silver Hook Dangle Amethyst Charms Eardrop Earrings se163 $7.80 |
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Beautiful 3 line of Tibet silver lapis lazuli bracelet $4.98 |
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AMETHYST GEMSTONE SILVER PLATED STUD EARRINGS 1 1/2″ $0.99 |
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Genuine 1.2CT Amethyst Sterling Silver Ring Sz 7.75 | RELIABLE SELLER $6.99 |
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.925 STERLING SILVER: WOMEN’S BAND RING W/AMETHYST?? HEART-SHAPED STONE, Size 7 $29.99 |
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925 Silver AMETHYST Inexpensive Beautiful Ring Size US 8 1/4, British Q 1/2 $6.50 |
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Splarkling 925 Sterling Silver Cubic Zirconia Genuine Amethyst Ring Unisex #6.8 $76.50 |
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19.66ct Natural Amethyst Crystal in Sterling Silver Forged Wrap $23.05 |
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Bali Handcrafted Silver Earring with Amethyst (syn) & Garnet 5675 $6.90 |
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NATURAL AMETHYST GEMSTONE SZ 7 RING 925 STERLING SILVER PLATED OVER SOLID COPPER $0.99 |
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NATURAL AMETHYST GEMSTONE SILVER PLATED CLASP CHIP NECKLACE 18 1/3″ $3.99 |
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925 Sterling Silver AMETHYST Beautiful Simple Ring Size US 5 3/4 Indian Jewelry $16.99 |
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RING FACETED GREEN AMETHYST .925 STERLING SILVER SIZE 8 1/2 $16.19 |
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eLuna 6x8mm Oblong Purple Amethyst Women Silver Ring Size 6 Slim Band $8.96 |
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VICTORIAN DIAMOND AMETHYST 14K GOLD SILVER EARRING PAIR $385.00 |
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NATURAL AMETHYST GEMSTONE PENDANT 1 1/8″ 925 SILVER PLATED OVER SOLID COPPER $0.99 |
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Sterling Silver Simulated Diamond & Amethyst Dress Ring Size 9 / S $29.54 |
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Chic Amethyst Gemstone Jewelry Gems Silver Ring Size #8 B233 $0.99 |
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57.6CT AMETHYST GEMSTONE 925 SILVER PENDANT JEWELRY 831 $90.20 |
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Natural Amethyst Gemstone 7 1/2″ Chip Bracelet Silver Plated Clasp $0.99 |
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Beautiful Fashion jewelry silver Amethyst crystal pendant and Necklace p176 $5.99 |
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ANTIQUE SILVER ALL CULTURED PEARL AMETHYST GOLD FILLED BEAD TENNIS NECKLACE $53.99 |
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ANTIQUE SILVER ALL CULTURED PEARL AMETHYST PERIDOT BOLD BEAD TENNIS NECKLACE $53.99 |
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CUT AMETHYST & 925 STERLING SILVER BRACELET $31.60 |
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AMETHYST QUARTZ TOPAZ ETC & 925 SILVER EARRINGS :50mm; L255 $9.47 |
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.925 STERLING SILVER DESIGNER PENDANT/ LOCKET WITH CUBIC ZIRCON, AMETHYST, CORAL $27.31 |
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Bali Handcrafted Solid Silver Poison Ring with Amethyst 5679 Size 16 $14.80 |
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Amethyst Gems .925 Silver Plated Ring Sz 8 $0.99 |
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NATURAL AMETHYST GEMSTONE SZ 9.5 RING 925 SILVER PLATED OVER SOLID COPPER $0.99 |
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NATURAL AMETHYST BEASD NECKLACE W/ STERLING SILVER CLASP !! $19.99 |
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Brand New 1.5 CTW Amethyst Sterling Silver Necklace Length 21 in. Weight 71.0g. $29.00 |
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HOT FASHION FLOWER GREEN AMETHYST PRASIOLITE GEMSTONE RING 44CT SILVER #7 $4.99 |
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925 Sterling Silver 16″ LIQUID SILVER AMETHYST CHIP NECKLACE $34.78 |
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62.90 CT AMETHYST GEM 925 SILVER PENDANT JEWELRY 1014 $98.40 |
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Vintage 925 silver amethyst gem marcasite stud earrings $24.61 |
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Genuine Amethyst Sterling Silver Ring Size 7.5 – AM9525 $21.95 |
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Sterling Silver MARCASITE & AMETHYST Art Deco Style Ring – Size N – 99p start! $3.48 |
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AMETHYST GARNET ETC & 925 SILVER EARRINGS :50mm; (H2321) $14.21 |
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GENUINE LEMON TOPAZ, AMETHYST .925 SILVER PENDANT 1 3/8″ $8.50 |
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58.20 CT AMETHYST GEM 925 SILVER PENDANT JEWELRY 1030 $98.40 |
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Huge Amethyst Crystal Sterling Silver Pendant C0302 $24.56 |
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AMETHYST QUARTZ & 925 SILVER RING/BRASS OF UK SIZE N & US: 6.5 (L5409) $14.21 |
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79 CT AMETHYST GEM 925 SILVER PENDANT JEWELRY 849 $160.00 |
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wonderful tibetan silver Amethyst bracelet $13.99 |
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RAINBOW MOONSTONE, AMETHYST .925 SILVER PENDANT 1 5/8″ $11.61 |
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GARNET AMETHYST ETC & 925 SILVER EARRINGS :48mm; (F9386) $14.21 |
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FREEPOST: A 16.74 CARAT AMETHYST GEMSTONE & .925 STERLING SILVER DROP EARRINGS. $17.37 |
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Solid Silver and amethyst ring (UK M; US 6.5) – 1.6g $2.37 |
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SILVER GREEN AMETHYST PRASIOLITE GEMSTONE RING SIZE 8 $5.99 |
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RARE KYANITE, AMETHYST .925 SILVER EARRINGS 1 5/8″ $7.99 |
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FACETED AMETHYST .925 SILVER RING SIZE 12 3/4 $7.99 |
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FASHION HOT GREEN QUARTZ GEMSTONE SILVER PENDANT 2 1/8″ $4.99 |
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63.4CT AMETHYST GEMSTONE 925 SILVER PENDANT JEWELRY 843 $98.40 |
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Swarovski 18x10mm Amethyst Crystal Adjustable Silver Plated Ring $20.53 |
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FACETED GREEN AMETHYST .925 SILVER EARRINGS 1 5/8″ $7.99 |
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925 silver PERIDOT/AMETHYST ring UK O½-¾/US 7.5-7.75 $34.76 |
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NATURAL AMETHYST GEMSTONE RING SZ 9 925 STERLING SILVER PLATED OVER SOLID COPPER $3.89 |
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New Luxury 1.2CT Purple Amethyst Silver Ring Size 4.5 | CHRISTMAS GIFT $6.99 |
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TITANIUM DRUZY, AMETHYST, PEARL .925 SILVER PENDANT 2 1/8″ $8.99 |
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BEAUTIFUL AMETHYST SILVER HEART PENDANT $276.62 |
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NEW LINKS OF LONDON Silver Love Me Stud Earrings Amethyst Garnet Pink $142.25 |
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NEW LINKS OF LONDON Silver Love Me Daisy Ring Size M Amethyst Garnet $142.18 |
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925 Sterling Silver Earrings FABULOUS 8mm Amethyst CZ Square Studs-Genuine 925 $9.47 |
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925 Precious Sterling Silver Green Amethyst Earrings $109.01 |