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Cubic Zirconia |
The best simulated diamond on today's market, cubic zirconia (CZ) offers a
combined
high value of refractive index, dispersion and hardness ( Mohs hardness: 8.5;
refractive
index: 2.15; specific gravity: 5.8). Like naturalstones, CZs vary in color,
clarity and cut.
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Stone Shape |
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Birth Stone Chart |
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Necklace Length |
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Zodiac Sign Chart |
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Ring Guide Chart |
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Beware! Always make sure your finger size
before you place ring order. If you are not sure about your finger size, you
can use our "Finger Sizer" chart for a guide. If buying for a friend,
just ask him or her
to do the step 1 and 2. Use a ruler to get the length over the
phone. You can than use our "Ring Size Table" to find the relative size
# match the length. If you do not find the size # match exactly the same
as the length, always order one size up, so it will not get too small to wear.
Step1:Cut a straight strip of paper about
the size of 3 inches (long)* 1/2 inch (wide).
Step2: Warp around your finger with this
paper strip. Place a mark where the end meets the
paper strip.
Step3: Place the mark on the "X" of
this finger size chart just print out. Extend the paper strip, the # indicates
at the end of the paper strip is the correct finger size.
Special Notes
Refer to our "Ring Size Table" for international size conversion
chart for different sizing standard.
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Cubic Zirconia Converting from Size to Karat Chart |
Round Shape
| Size |
C.Z. Weight |
Diamond Weight |
| 1.25 |
0.013 |
0.01ct |
| 1.5 |
0.023 |
0.015 |
| 1.75 |
0.237 |
0.02 |
| 2mm |
0.06 |
0.03 |
| 2.25 |
0.08 |
0.04 |
| 2.5 |
0.10 |
0.05 |
| 2.75 |
0.15 |
0.06 |
| 3mm |
0.20 |
0.10 |
| 3.25 |
0.25 |
0.13 |
| 3.5 |
0.30 |
0.16 |
| 3.75 |
0.35 |
0.20 |
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4mm
|
0.43 |
0.25 |
| 4.25 |
0.52 |
0.3 |
| 4.6 |
0.62 |
0.36 |
| 4.75 |
0.72 |
0.42 |
| 5mm |
0.62 |
0.48 |
| 5.25 |
0.98 |
0.58 |
| 5.5 |
1.10 |
0.65 |
| 5.75 |
1.27 |
0.75 |
| 6mm |
1.45 |
0.85 |
| 6.25 |
1.65 |
0.97 |
| 6.5 |
1.85 |
1.09 |
| 6.75 |
2.05 |
1.20 |
| 7mm |
2.30 |
1.35 |
| 7.5 |
2.80 |
1.65 |
| 8mm |
3.35 |
1.97 |
| 8.5 |
4.00 |
2.35 |
| 9mm |
4.70 |
2.76 |
| 9.5 |
5.50 |
3.74 |
| 10mm |
6.40 |
3.76 |
| 11 |
8.50 |
5.00 |
| 12 |
11.00 |
6.47 |
| 13 |
13.90ct |
6.18ct |
| 14 |
17.40 |
10.24 |
| 15 |
21.00 |
12.35 |
| 16 |
25.30 |
14.88 |
| 17 |
30.00 |
17.54 |
| 18 |
35.30 |
20.76 |
| 19 |
43.59 |
25.64 |
| 20 |
52.00 |
30.63 |
Oval Shape
| Size |
C.Z. |
Diamond |
| Size |
C.Z. Weight |
Diadmond Weight |
| 5x3mm |
0.35ct |
0.21ct |
| 6x4 |
0.75 |
0.44 |
| 7x5 |
1.40 |
0.82 |
| 7.5x5.5 |
1.70 |
1.00 |
| 8x6 |
2.10 |
1.24 |
| 9x7 |
3.20 |
1.80 |
| 10x8 |
4.60 |
2.71 |
| 10.5x8 |
4.90 |
2.88 |
| 11x9 |
6.20 |
3.64 |
| 12x10 |
7.70 |
4.52 |
| 14x12 |
12.52 |
7.36 |
| 16x12 |
17.41 |
10.24 |
| 18x13 |
19.40 |
11.41 |
| 20x15 |
19.64 |
17.43 |
Pear Shape
| Size |
C.Z. Weight |
Diamond Weight |
| 5x3mm |
0.40ct |
0.24ct |
| 6x4 |
0.68 |
0.40 |
| 7x5 |
1.20 |
0.71 |
| 8x5 |
1.40 |
0.82 |
| 8.5x5.5 |
1.70 |
1.00 |
| 9x6 |
2.15 |
1.26 |
| 10x7 |
3.20 |
1.88 |
| 12x8 |
5.00 |
2.94 |
| 14x9 |
7.50 |
4.41 |
| 15x10 |
9.00 |
5.29 |
| 18x11 |
16.00 |
9.41 |
| 19x12 |
17.00 |
10.00 |
| 23x14 |
26.00 |
15.29 |
Marquise Shape
| Size |
C.Z. Weight |
Diamond Weight |
| 4x2mm |
0.15ct |
0.08ct |
| 5x2.5 |
0.24 |
0.14 |
| 6x3 |
0.42 |
0.25 |
| 7x3. |
0.57 |
0.34 |
| 8x4 |
0.90 |
0.53 |
| 9x4.5 |
1.15 |
0.73 |
| 10x5 |
1.70 |
1.00 |
| 11x5.5 |
2.25 |
1.32 |
| 12x6 |
2.85 |
1.66 |
| 13x6.5 |
3.60
| 2.11 |
| 14x7 |
4.50 |
2.65 |
| 15x7.5 |
3.50 |
3.23 |
| 16x8 |
7.50 |
4.41 |
| 17x8.5 |
8.30 |
4.88 |
| 20x10 |
13.00 |
7.63 |
| 22x11 |
16.50 |
9.71 |
| 30x15 |
36.50 |
21.00 |
Rectangle Shape
| Size |
C.Z. Weight |
Diamond Weight |
| 5x3mm |
0.40ct |
0.24ct |
| 6x4 |
0.68 |
0.40 |
| 6.5x4.5 |
1.20 |
0.71 |
| 7x5 |
1.40 |
0.82 |
| 8x6 |
1.70 |
1.00 |
| 8.5x6.5 |
2.15 |
1.26 |
| 9x7 |
3.20 |
1.88 |
| 9.5x7.5 |
5.00 |
2.94 |
| 10x8 |
7.50 |
4.41 |
| 11x9 |
9.00 |
5.29 |
| 12x10 |
16.00 |
9.41 |
| 14x12 |
17.00 |
10.00 |
| 13x12 |
26.00 |
15.29 |
| 18x13 |
28.48 |
16.75 |
| 20x15 |
45.77 |
16.92 |
Heart Shape
| Size |
C.Z. Weight |
Diamond Weight |
| 4x4 |
0.50ct |
0.29ct |
| 5x5 |
0.75 |
0.44 |
| 6x6 |
1.30 |
0.76 |
| 6.5x6.5 |
1.65 |
0.97 |
| 7x7 |
2.10 |
1.24 |
| 8x8 |
3.10 |
1.82 |
| 9x9 |
4.40 |
2.59 |
| 10x10 |
4.00 |
3.53 |
| 11x11 |
8.00 |
4.70 |
| 12x12 |
10.40 |
6.12 |
| 13x13 |
14.94 |
8.79 |
| 14x14 |
15.70 |
9.24 |
Brass
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Is a metal alloy containing (at least 50%) copper and zinci Copper melts at
1083 Celsius and zinc boils at 907 Ce lsius and silver melts at 960
Celsius.sometimes including small amounts of other metals, but usually 67
percent copper and 33 percent zinc. Formulas with varying proportions of copper
and zinc are alloyed together colors to achieve different brass and different
ductility (workability) of metal.
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SS925
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To give silver more durability when used in jewelry, it is combined with an
alloy to change its physical characteristics. Sterling silver is an alloy with
a fineness of 925, that is, sterling is 925 parts per thousand (or 92.5%)
silver and 75 parts per thousand (or 7.5%) copper(the copper increases the
silver's hardness).
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10 Kt Gold
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Gold is alloyed (mixed with other metals, usually silver and copper) to
make it less expensive and harder..., 10 karat gold is 10/24 gold (about 43.5%
gold, or 10 karat (10K) gold is 10 parts gold to 14 parts other metals...
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Nonmetal
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Is a non-allergenic material when not plated. It is darker and grayer than
sterling silver. Stainless steel is an alloy of iron which contains more than
10% chromium. In the process of making it, a little of the chromium in the
alloy is used to form the hard oxide coating on the surface.
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Plating |
The process by which one
metal is coated with another using electricity. Also known by the terms
electroplating and Galvanotechnics - the latter named after the inventor of the
process. To produce less costly jewelry components, inexpensive or base metals
are coated with a thin layer of precious metal, usually gold or silver.
Chromium, copper and rhodium are also electroplated, although rhodium is
sometimes used as plate.
Micron: A micron is a unit of length equal to 0.001 mm (millimeter).
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Gold
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The gold plate is A thin coating of electroplated
or mechanically plated gold on top of a base metal.
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Rhodium
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Rhodium is A noble metal with a whitish gray appearance. Rhodium is typically
applied to metal through the electroplating process. A thin plating of rhodium,
which is one of the members of the platinum family, applied over either
sterling or other alloy to give a bright, shiny, longlasting silver-colored
finish to a piece.
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Rose Gold
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Is a thin layer of Rose gold (An alloy of gold mixed with copper, which gives
it a red tint) bonded through an electrical process to a base metal core.
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Silver Plating
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A very thin layer of silver bonded through an electrical process to a base
metal core.
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Pistol
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Is means Gun tone, the original name shall be Ruthenium plating, but some use
black nickel as that tone, too.
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Multi tone
(2 Tone and 3 Tone)
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Is a conbination of two or more color platings. Example:plated with 18K gold
and Rhodium, two kind of noble elements.
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Mat plating
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A non-shiny, frosted surface.
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Antiqued tone
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Is the plating that has been made to look aged, having a darkened or tarnished
appearance.
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Special plating
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Is the texture made by using any tool that leaves a mark on the surface of
themetal, the list as long and as wide as imagination can go in the field of
design and innovation.
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Cubic Zirconia
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Gemologists agree that Cubic Zirconia is the finest diamond simulation because
it comes closer than any other gem material to the characteristics of a
diamond. Like diamonds, the best cubic zirconia are colorless (or white) and do
not lose their brilliance. Given proper cleaning, the cubic zirconia will
retain its beauty for years. Almost all the cubic zirconia in the market today
is chemically cmrised of zirconium oxide and yttrium oxide. Individually,both
of these materials are opaque, white ores, but when they are melted together
under appropriate conditions, they combine to form an amazingly brilliant clear
crystal. To fill the need for colors, manufacturers also produce a variety of
colored cubic zirconia. Cubic Zirconia?s are cut in the same way diamonds are
cut. The sizing of the gemstone is usually indicated by its weight in carats, a
carat being one-fifth of a gram. Because the cubic zirconia is so dense and
solid, it outweighs a diamond of the same millimeter size, weighing 1.7 times
more than a diamond of the same millimeter diameter. We use the CZ weight in
MBM copy, not the equivalent diamond weight
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Top Grade Crystal
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Top Grade is an Austrian company that makes high-quality rhinestones,
beautiful cut crystals, costume jewelry, and other glass-related items. The
company was founded by Daniel Top Grade (1862-1956), the son of a glass
faceter. In 1892, Daniel developed a new mechanized technique for faceting
glass crystals, creating a sparkling, diamond-like "chaton". He then started a
factory (and company) in Wattens, Austria (in the Tyrolean Alps) in 1895. In
the 1970's, the company expanded to the Providence, Rhode Island, USA - they
later moved to Cranston, Rhode Island. In 1955, Top Grade and Christian Dior
developed the iridescent aurora borealis stone.
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Synthetic
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Man-made, but having the same physical, chemical and optical characteristics
as the natural stone. Synthetic stones are made in laboratories; these
stones generally lack imperfections. It is very difficult to distinguish a
synthetic stone from a natural stone.
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Genuine nature stone
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Any gemstones (stone that may be used as a jewel when cut and polished) valued
for their beauty but which are not one of the four "precious stones", (emerald
diamond ruby or sapphire). Some examples of semiprecious stones are amethyst,
aventurine, carnelian, garnet, opal, peridot, rose, quartz, etc.
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Epoxy
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Any of various tough resistant thermosetting synthetic resins containing epoxy
groups: used in surface coatings, laminates, and adhesives.
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Jewelry Cleaning Advise |
| To prevent Jewelry from
damage, do not rub jewelry with coarse fabric, it may scratch the jewelry
surface. Do not expose jewelry to direct sunlight for long period of time, it
may fade the color of the stone. Avoid direct contact with perfume, lotion, and
spray, it may leave residue to the jewelry.
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| To clean the jewelry, wipe
your jewelry with damped cloth of warm water-detergent solution. Rinse
thoroughly with clean water and air dry after rinse. At last, polish your
jewelry with lint-free soft cloth.
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