http://monsoonwok.com/glass-diamond/
Glass Diamond
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50 Emerald Forest Diamond Bicone Glass Beads 6MM $2.49 |
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50 Capri Blue Diamond Bicone Glass Beads 6MM $2.25 |
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10 Black Diamond Firepolished Glass Faceted Round Beads 8MM $1.00 |
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8mm Cathedral Czech Glass Beads Bronze BLACK DIAMOND 25 $4.09 |
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8mm Cathedral Czech Glass Beads Silver BLACK DIAMOND 25 $4.09 |
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Antique Silver Crown Setting Jewel Drops w 18 X 13mm Frosted Black Diamond Glass $7.59 |
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4mm Czech Glass Bicone Crystals – Black Diamond Color – 36 Beads $5.50 |
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(4) 2mm Jewelry Beach Sea Glass DIAMOND Drill Bits $14.45 |
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GLASS BEADS – Bicone Faceted, BLUE DIAMOND, 6MM (25) $1.50 |
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New 2 oz Judikins Diamond Glaze Clear Glass like Finish Coat for Art and Crafts $5.95 |
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Glass bicone – 4mm – tr. blk diamond – 100 pcs. $0.40 |
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16 BLACK DIAMOND CZECH GLASS TEAR Drop Beads 8MM $1.00 |
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16 BLACK DIAMOND AB CZECH GLASS Tear Drop BEADS 8MM $1.00 |
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25 Black Diamond AB Czech Glass Teardrops Beads 7x5mm $3.59 |
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50 Czech Faceted FP Glass Beads Black Diamond 5mm BD027 $1.91 |
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50 Czech Faceted FP Glass Beads Black Diamond 6mm BD037 $2.01 |
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(3) Jewelry Diamond Drill Bits/Burs ~ Beach Sea Glass $5.74 |
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Free! 50pcs Copper Plated glass diamond Spacer Beads 8mm $0.99 |
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Free! 50pcs Silver Plated diamond Glass Spacer beads 8mm $0.99 |
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20 pcs Faceted Crystal 5000 Round Glass Beads 8mm Black Diamond CR0112 $0.99 |
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Vintage 45 TOMATO Red Glass DIAMOND CUT BEADS new 5 $11.00 |
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50pcs copper Plated Glass diamond spacer beads 8mm $0.99 |
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Vtg 25 BLACK DIAMOND AB Fire Polish GLASS BEADS LUV! $12.25 |
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75% OFF JET AND Crystal Glass DIAMOND EMBOSSED BUY 5 GET 1 FREE FREE SHIPPING $2.89 |
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15 grams Japanese TOHO Glass Seed Beads . Round Size 11 $2.99 |
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15 grams Japanese TOHO Glass Seed Beads . Round Size 11 $3.29 |
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Jablonex Czech Glass Red AB 14mm Diamond Drop Beads $8.99 |
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Czech Glass Seed Beads Mini Hanks Black Diamond,8/0 $3.79 |
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3mm Black Diamond Czech Glass Beads Appx 100 Beads $2.99 |
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Royal Blue & White 16.5x15mm Diamond Czech Glass Beads $3.29 |
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CZECH TRANS BLACK DIAMOND OLIVINE 4mm Fire Polished Faceted Glass BEADS (50) $3.97 |
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CZECH MATTE BLACK DIAMOND AB 4mm FIRE Polished Faceted GLASS BEADS (50) $3.97 |
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VTG 30 BLACK DIAMOND FACETED FIRE Polished Glass 8mm SPACER BEADS NEW OLD! $9.00 |
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Vtg 60 WHITE FROSTED DIAMOND GLASS SPACER BEADS OMG! $6.00 |
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50 Diamonds And Rust Glass Faceted Round Beads 6MM $2.49 |
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100 Black Diamond Glass Tear Drop Teardrops Beads 6MM $2.39 |
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Gorgeous Dark Purple Pressed Glass Diamond Beads $3.96 |
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10pc 6x3mm Black Diamond Firepolish Glass Donuts $2.47 |
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Orange Glass Beads Darice Made in Czech Republic 1 Strand 13 Beads Diamond Shape $7.00 |
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Millefiori Lampwork Glass Bead Diamond Mix Color L354 $4.99 |
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50 Capri Blue Diamond Bicone Glass Beads 6MM $0.99 |
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(4) 1/16″ JEWELRY STONE GLASS DIAMOND DRILL BITS $7.56 |
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100 Smokey Black Diamond Glass Heart Charms 10mm Beads $12.99 |
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Glass Pearl Beads 6mm Black Diamond Grey Gray Pearlized Jewelry Making Strand $5.99 |
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VTG 20 ORANGE CORAL DIAMOND ETCHED TABLE GLASS SPACER BEADS 9X8mm THE BEST! $6.00 |
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50 Jet Black Diamond Bicone Glass Beads 6MM $2.49 |
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Czech Glass Seed Beads Mini Hank Black Diamond C/L 11/0 $2.19 |
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400pcs (5 strands) 4mm Glass Faceted Round Beads – BLACK DIAMOND / GREY $8.41 |
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240pcs (3 strands) 4mm Glass Faceted Round Beads – BLACK DIAMOND GREY $6.43 |
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800pcs (10 strands) 4mm Glass Faceted Round Beads BLACK DIAMOND / GREY $14.85 |
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Free! 50pcs copper plated glass diamond spacer beads 8mm $0.99 |
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Findings Handmade Settings Glass Diamond Round 5PCS $1.99 |
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Czech Pressed Glass Diamond Drop Beads AB Pink 14x5mm $12.99 |
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50 Trans Gold Diamond Bicone Czech Glass Beads 6MM $2.25 |
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VTG 30 FACETED CZ DIAMOND OPAL White Glass SPACER BEADS 5mm NU? $6.00 |
Identifying The Natural Diamond From Its Synthetics And Simulants
Diamond simulants are gemstones (natural or synthetic) that resembles a diamond and is mostly confused for a natural diamond. Diamond simulant is different from synthetic diamond where synthetic diamonds are man made and has almost the same chemical and physical properties of a natural diamond. Diamond simulants differ completely physically and chemically from a natural diamond. They just imitate natural diamond.
While some differences between a diamond simulant and a real diamond are easy to identify, there are others that can be challenging. It is important to know some basic facts that will allow you to differentiate and therefore keep yourself from being cheated.
Though each diamond simulant has its own physical properties and differs from the diamond in various ways, there are some properties where the differences are common. For example, all diamond simulants are softer than the diamond. Therefore, each of the diamond simulants is likely to have rounded edges and cut. The surface of the simulant is likely to get scratched easily. Even when the simulant is new, it cannot match the clarity and brilliance of the diamond itself. These small differences can easily be observed under a microscope. Sometimes, the naked eye is enough to identify these differences.
All diamond simulants have a higher specific gravity than that of the diamond. This means that if we have a diamond and a diamond simulant that is exactly the same in size and shape, the simulant will weigh more.
The thermal conductivity of the simulants is lower than that of the diamond. Therefore the diamond is a cooler substance and feels cooler than the simulants on touch. A mechanical tool called the thermal tester, diamond tester or the diamond probe can be used to determine this. The tip of the tester should be touched with the face of the diamond and care should be taken to avoid touching any metal (if the diamond is mounted). The tester heats the stone and assesses whether it is a synthetic diamond or a natural one based on the rate at which the heat is absorbed and transmitted.
There are however certain other characteristics of specific diamond simulants that one needs to know about to be able to differentiate between the diamond and its simulant.
Glass – This simple and extremely available diamond simulant has been used as a proxy since the 1700′s. This was made possible when the Europeans discovered that they could add lead oxide to glass to increase its dispersive property and brilliance. Even with this treatment, glass has much less brilliance, hardness and dispersion. The dispersion of glass is so low that one can see through a faceted glass stone; something that is not at all possible if a real natural diamond is symmetrically faceted.
Doublets – The garnet and glass doublet has been used as a diamond simulant since the 1840′s. A colorless or pale color thin layer of garnet is fused to a glass base to create this effect. The hard garnet provides the lustrous and polished look. The fact that the garnet layer is extremely thin allows the coupled gem to look colorless from the face-up.
All that is needed to identify the diamond simulant is a simple rocking of the gem under a light. The difference in luster of the harder garnet and the glass makes it evident that the stone is a doublet and not a genuine diamond.
The garnet and glass doublets can be commonly seen in some antiwue jewelry. They are no longer the preferred doublet option for modern jewelers. INstead synthetic spinels or synthetic sapphires crowns and strontium titanate are used nowadays.
Colorless synthetics- Sunthetic sapphires and spinels are also used as diamond simulants. They are harder than the previously used simulants and provide better brilliance. However, the luster, brilliance and durability does not even come close to that of the natural diamond. The fact that the spinel is extremely inexpensive to produce makes it a favorite for imitation jewelry.
Zircon – Even though natural zircon is not used very commonly as a diamond simulant any more, it was used as one earlier. The natural zircon has more brilliance than glass. However, unlike the natural diamond which is single refractive, zircon gemstone is double refractive. This means that if you look a line through a zircon, you are likely to see two lines on the other side. This feature makes it fairly easy to identify a zircon when it is used as a diamond simulant. The reason why the use of the zircon reduced over the years is because it chips and scratches very easily.
Synthetic Rutile – A gem with relatively low hardness, a synthetic rutile has high levels of brilliance. Actually the rain bow colors that it disperses are so intense that they take away from the luster. This rainbow colors are obvious even to amature gemologists. The synthetic rutile is also doubly refractive.
Strontium Titanate -Singly refractive and highly dispersive, this diamond stimulant is less hard and not too durable.
YAG (Yttrium aluminium garnet) and GGG (Gadolinium Gallium Garnet) – With a high level of hardness and good brilliance, YAG was one of the more popular diamond simulants till better ones appeared on the scene. GGG is more dispersive and is almost as brilliant as the diamond itself. However, its disadvantage lies in its lack of hardness and the fact that it scratches easily.
Synthetic Cubic Zirconia – A great simulant of the diamond the synthetic cubic zirconia has comparable brilliance and luster. The durability is also high with a hardness of 8.5-9 on the Mohs scale. The one way in which the simulant can be identified is by checking the specific gravity of the stone which will give away the fact that it is much heavier than the diamond.
Synthetic Moissanite – With a hardness of 9 on the Mohs scale, synthetic moissanite is one of the hardest simulants of the diamond. A good balance of brilliance and fire gives this stone a good and attractive appearance. The synthetic moissanite gemstone is a double refractive, but the doubling of back facets effect can only be seen under higher magnification when the gem is tilted. This stone is one exception to the specific gravity rule and the specific gravity of the synthetic moissanite is lower than that of the diamond. It is one simulant that can fool most gemologists easily since it sometimes gives a clearance on the thermal test too. Therefore, if the thermal tester indicates the gemstone as a diamond, other tests should be performed to ascertain whether the stone is not a natural diamond or a synthetic moissanite.
The similarities of these simulants with the diamond make them extremely marketable and appealing. The issue however, is whether the trader and sellers disclose the real status of the gem while trading it.
About the Author
Mithun Rao, a jewelry professional, holds degree in gemology and diamond grading from Mumbai and has spent 10 years in the industry (including running his own jewelry shop). With an obsession for diamonds and precious stones, he owns and manages the diamond information and diamond price information site called gehnabazaar.com.
where can i find Coloured Glass diamond paperweight?
i need them in
white
red
yellow
green
purple/magenta
Dark Blue
Light Blue
they need to be at least 8 cm wide /life size
there needed for a sonic the hedgehog art project
and i cant paint glass
i live in the UK and have searched for craft stores they don’t sell them
any links will be helpful thank you
Get clear and use led lighting?
