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HUGO HOT NATURAL AMMONITE FOSSIL GEMSTONE SILVER BRACELET 7 2/4″ $21.50 |
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Natural Lapis lazuli Carved Ammonite Pendant Bead $45.00 |
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1 pcs 6.7CT 14.5x10mm Natural Blue Light Moonstone Ring surface Gems $0.99 |
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20.4g Rare Natural Beautiful Chrysanthemum grain Ammonite Fossil-Madagascar $0.99 |
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14.2g Rare Natural Beautiful Chrysanthemum grain Ammonite Fossil-Madagascar $0.99 |
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Snail Shape 8.9g Rare Natural Beautiful Ammonite Fossil-Madagascar $0.99 |
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16.9g Rare Natural Beautiful Chrysanthemum Texture Ammonite Fossil-Madagascar $0.99 |
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1.2″ OPALIZED AMMONITE W/ NATURAL RAINBOW CRYSTAL FLASH MADAGASCAR FOSSIL 27gr $8.84 |
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14.5g Rare Natural Beautiful Chrysanthemum Texture Ammonite Fossil-Madagascar $0.99 |
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Natural Spiral Ammonite Fossil,Gem Stone b6776 $22.99 |
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2.7oz. Natural Rainbow Spiral Ammonite Fossil Specimen b9353 $19.49 |
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14.1g Rare Natural Beautiful Chrysanthemum Texture Ammonite Fossil-Madagascar $0.99 |
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12.6g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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11.7g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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A012 AMMONITE FOSSIL NATURAL GEMSTONE DANGLE EARRINGS JEWELRY 18KGP $0.99 |
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A032 AMMONITE FOSSIL NATURAL GEMSTONE DANGLE EARRINGS JEWELRY 18KGP $0.99 |
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8g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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c1202 Wow! Natural Spiral Whole Ammonite Fossil $24.69 |
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c1201 Wow! Natural Spiral Whole Ammonite Fossil $17.89 |
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7.4g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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c1195 AAA Unique Natural Spiral Whole Ammonite Fossil $27.99 |
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4.6g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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5.5g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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9.60CT WORLD RAREST AMAZING AMMONITE NATURAL AMMOLITE FROM CANADA GEM $149.89 |
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14.7g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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6.1g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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8.9g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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Natural Ammonite Ammolite Fossil Madagascar $15.00 |
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11.1g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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A026 AMMONITE FOSSIL NATURAL GEMSTONE DANGLE EARRINGS JEWELRY 18KGP $0.99 |
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Natural Ammonite Ammolite Fossil Madagascar Pendant $15.00 |
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A033 AMMONITE FOSSIL NATURAL GEMSTONE DANGLE EARRINGS JEWELRY 18KGP $0.99 |
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11.7g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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Natural Ammonite Ammolite Fossil Madagascar Pendant $15.00 |
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9.8g Rare Natural Beautiful Chrysanthemum Texture Conch Fossil-Madagascar $0.99 |
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Natural Ammonite Ammolite Fossil Madagascar Pendant $15.00 |
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Natural Ammonite Ammolite Fossil Madagascar Pendant $18.00 |
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17.23 ct Green/Red Natural Ammolite/Ammonite Gemstone $39.97 |
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Natural Ammonite Ammolite Fossil Madagascar Pendant $15.00 |
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Natural Ammonite Ammolite Fossil Madagascar Pendant $15.00 |
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Natural Ammonite Fossil Jewelry Pendant $8.99 |
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Brown 9.8g Rare Natural Beautiful Texture Ammolite Conch Fossil-Madagascar $0.99 |
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32.00 CT.RARE!! 100% NATURAL DESIGNER!! AMMONITE FOSSIL FANCY SHAPE GEMSTONE $7.25 |
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Small 11.1g Rare Natural Beautiful Texture Ammolite Conch Fossil-Madagascar $0.99 |
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6.6g Rare Natural Beautiful Texture Ammolite Conch Fossil-Madagascar $0.99 |
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Natural Nautilus Ammonite Ammolite Fossil Madagascar Specimen Fossil H1010 $2.20 |
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A025 AMMONITE FOSSIL NATURAL GEMSTONE DANGLE EARRINGS JEWELRY 18KGP $0.99 |
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A031 AMMONITE FOSSIL NATURAL GEMSTONE DANGLE EARRINGS JEWELRY 18KGP $0.99 |
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1.23lb NATURAL BEAUTIFUL astroies $17.77 |
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NATURAL BEAUTIFUL astroies $9.77 |
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NATURAL BEAUTIFUL astroies $9.77 |
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NATURAL BEAUTIFUL astroies $9.77 |
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NATURAL BEAUTIFUL FOSSIL NAUTILOID FOSSILS SPECIMEN $49.02 |
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HUGE NATURAL GEODE AMMONITE FOSSIL+TIGER EYE NECKLACE 20″; B1636 $15.50 |
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2 11/16″ Natural Spiral Ammonite Fossil Specimen b9199 $37.99 |
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118g NATURAL BEAUTIFUL ammonite FOSSIL SPECIMEN $14.00 |
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Natural AMMONITE FOSSIL .925 Sterling Silver Bracelet The Jewellery Store !;F15 $41.00 |
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HOT NATURAL AMMONITE FOSSIL GEMSTONE PENDANT SILVER 2 3/8″ $1.75 |
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NATURAL AMMONITE FOSSIL GEM PENDANT 1 7/8″ 925 SILVER PLATED OVER SOLID COPPER $0.99 |
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Natural South African Ammonite Fossil & Dragon Blood Jasper 19″ Necklace Jewelry $8.69 |
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Morocco 100% Natural Snail Ammonite Fossil Crystal Specimen #3 $7.95 |
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HOT NATURAL AMMONITE FOSSIL GEMSTONE PENDANT SILVER 2 5/8″ $1.25 |
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1 pcs 6.7CT 14.5x10mm Natural Blue Light Moonstone Ring surface Gems $0.99 |
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2″ Natural Spiral Ammonite Fossil Specimen b9185 $15.99 |
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3.7oz. Natural Spiral Ammonite Fossil Specimen b9351 $19.99 |
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Natural Spiral Ammonite Fossil,Gem Stone b6779 $12.99 |
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1 pcs 9CT 17x11mm Natural Blue Light Moonstone Ring surface Gems $0.99 |
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3214 WHOLE Ammonite Half Sutures & Half Natural Side XLARGE 8.25″ Fossil 110 MYO $157.99 |
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1 9/16″ Natural Spiral Ammonite Fossil Specimen b9194 $9.99 |
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2083bc Morocco Fossil 5 Ammonites FIVE Goniatites on Natural Matrix XXLARGE 8″ $69.99 |
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1 pcs 6.7CT 14.5x10mm Natural Blue Light Moonstone Ring surface Gems $0.99 |
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Natural Ammonite Fossil Shell Gemstonel Pendant 1P $4.59 |
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47.30 CT. 100% RARE!! NATURAL DESIGNER!! AMMONITE FOSSIL FANCY SHAPE GEMSTONE $8.75 |
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8.75 Cts WORLD RARE GEM STONE FROM CANADA NATURAL AMMOLITE AMMONITE $9.99 |
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HOT NATURAL AMMONITE FOSSIL GEMSTONE PENDANT SILVER 2 5/8″ $4.99 |
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A+ New Find NATURAL BEAUTIFUL ammonite FOSSIL SPECIMEN $7.99 |
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A+ New Find NATURAL BEAUTIFUL ammonite FOSSIL SPECIMEN $14.77 |
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A+ New Find NATURAL BEAUTIFUL ammonite FOSSIL SPECIMEN $8.77 |
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A+ New Find NATURAL BEAUTIFUL ammonite FOSSIL SPECIMEN $19.77 |
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2 NATURAL BEAUTIFUL ammonite FOSSIL SPECIMEN $9.70 |
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Natural AMMONITE FOSSIL SHELL silver pendant PT07D $9.34 |
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Unheated 98.14 Ct. Pair Natural Yellow Brown Ammonite Fossil Madagascar $0.99 |
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HOT NATURAL AMMONITE FOSSIL GEMSTONE PENDANT SILVER 2 5/8″ $2.99 |
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1 pcs 9CT 17x11mm Natural Blue Light Moonstone Ring surface Gems $0.99 |
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Morocco 100% Natural Ammonite Fossil Snail Crystal Specimens #5 $12.95 |
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1PC Natural Ammonite Fossil Shell Pendant Bead $3.85 |
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NATURAL FOSSIL AMMONITE .925 STERLING SILVER PENDANT $49.99 |
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A008 AMMONITE FOSSIL NATURAL GEMSTONE DANGLE EARRINGS JEWELRY 18KGP $0.99 |
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4.8oz. Natural Spiral Ammonite Fossil Specimen b9378 $26.99 |
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UNIQUE Sterling Silver NATURAL AMMONITE FOSSIL Pendant $54.99 |
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Fossil Natural FOSSILIZED TRILOBITE in Host Rock $4.99 |
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Natural Ammonite Ammolite Fossil Silver Pendant $30.00 |
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A015 AMMONITE FOSSIL NATURAL GEMSTONE DANGLE EARRINGS JEWELRY 18KGP $0.99 |
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Natural Ammonite Ammolite Fossil Silver Pendant $25.00 |
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Natural Ammonite Fossil Silver Pendant $9.99 |
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Natural Ammonite Fossil Shell Silver Pendant $9.99 |
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Natural Ammonite Fossil Silver Pendant $9.99 |
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Natural Ammonite Fossil Shell Silver Pendant $9.99 |
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Stunning Large .925 Silver Natural AMMONITE Shell RING size 6.5 ~ 74 carats! $39.95 |
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Natural Ammonite Fossil Shell Silver Pendant $9.99 |
How are Simulated Gemstones Made?
Because of the rarity of naturally occurring gemstones and the high costs of mining them, the market demand has been met by laboratory-created simulated gemstones. These are the stones which are often used as birthstones in jewelry.
Composed of the same chemicals, minerals, and gasses, simulated gemstones are created by heat and pressure, just like their naturally occurring sister stones which took eons to be created beneath the earth’s surface. There are basically four methods used in the creation of simulated stones.
The Flame Fusion or Verneuil Process
As far back as the late 1800s, rubies were being created in laboratories using the flame fusion method. The method is low cost, and the rate of crystal growth is rapid, which is why it is still used today to create large numbers of inexpensive gemstones. The powdered minerals and chemicals of the natural stone are fused together with a high oxyhydrogen flame. The powder melts and begins to crystallize in curved layers. While the stone could be considered flawless as compared to a natural stone because there are no foreign materials or inclusions in it, sometimes tiny gas bubbles may be trapped in the crystal layers, reducing the value of the stone.
The Flux-Melt Technique
Like all the other methods, the flux-melt technique uses only the naturally occurring components of a gemstone. The ingredients are liquefied into a flux and crystals are grown under controlled conditions. These conditions closely mimic the way the stones are naturally formed, and are the closest imitation of the real stone. It is most often used to create rubies.
The Hydrothermal Technique
The hydrothermal technique is most often used to make emeralds. Using the natural components of an emerald, the materials are subjected to high heat in a sealed container of water. As the water cools, the crystals form under high pressure.
The Doublet or Triplet Method
Sometimes gemstones are created using a doublet or triplet method. A thin layer of gemstone is fused over another layer or layers of another material. Also called composite stones, the edge of this thin layer can be seen quite clearly. Sometimes a large stone like a ruby is created by fusing a thin layer of natural sapphire over a large synthetic ruby base. Other stones commonly fused with another are opals, amber, and ammonite, which because of their fragility need to be fused with a stronger stone.
Simulated diamonds are called cubic zirconia (CZ) and come in a range of clear shades from colorless to shades of pink, yellow, and blue. CZ’s are nearly as hard as rubies and sapphires, with high brilliance and fire like diamonds.
Moissanite is found naturally in meteorites. The minerals and chemicals are re-created in the lab to produce a brilliant clear stone that is nearly as hard as a diamond, and is the closest mimic to the true diamond.
As long as the consumer is made aware of what he or she is buying, synthetic lab-created stones are a quality alternative to natural stones.
About the Author
Each www.Personalized-Jewelry.com item is made to your exact specifications and made even more special with the personalization you choose. Create your custom piece to include a loved one’s name, a wedding date, a birth date, religious occasion or words that inspire or touch your heart.
