FAQ
-
What is Moissanite?
-
What gives Moissanite its fire?
-
How does Moissanite’s fire compare with that of other popular gemstones?
-
Gemstone
Properties Comparison Chart
- What is White Gold?
- Why
buy Joalan Design Moissanite?
What is
Moissanite?
Fifty
thousand years ago, a meteorite containing a unique secret landed the Arizona
desert. It wasn’t until 1893 that scientist Dr. Henri Moissan – who later
received the Nobel prize for chemistry – examined samples taken from the
meteorite’s crater and discovered particles of an intriguing new mineral,
silicon carbide (later name “moissanite” in his honor).
Natural
moissanite crystals large enough for use in jewelry are extremely rare – found
in limited quantities or as small particles. For years, scientist tried in vain
to recreate this extraordinary brilliant material. Only recently, through the
power of advanced technology, Charles & Colvard developed a way to duplicate
this unique jewel by producing large, gem –quality crystals. Moissanite is truly
a unique and beautiful blend of art and science.
What
gives Moissanite its fire?
A
gemstone’s “fire” is caused by dispersion – the property by which light is
spread out according to its wavelengths (colors) as it passes through an object.
Moissanite dispersion is 0.104 and can be calculated scientifically.
How
does Moissanite’s fire compare with that of other popular gemstones?
Moissanite
displays 2.4 times more dispersion or fire than diamond (0.044) and much more
dispersion than ruby (0.018), sapphire (0.018) and emerald (0.014). See Chart.
Gemstone
Properties Comparison Chart
|
|
Refractive Index Brilliance |
Dispersion Fire |
Luster |
Hardness |
Toughness |
|
Charles & Colvard Created
Moissanite |
2.65-2.69 |
0.104 |
20.4% |
9.25 |
Good |
|
Diamond |
2.42 |
0.044 |
17.2% |
10 |
Good* |
|
Cubic
Zirconia (CZ) |
2.17 |
0.060 |
13.6% |
8.50
|
Good |
|
Ruby |
1.77 |
0.018 |
7.7% |
9 |
Excellent** |
|
Sapphire |
1.77 |
0.018 |
7.7% |
9 |
Excellent** |
|
Emerald |
1.58 |
0.014 |
5.1% |
7.50 |
Good to Poor |
* In
cleavage direction, otherwise excellent **Except twinned
stones
What
Is
White
Gold?
White gold
is an alloy of gold and other metals such as silver, copper or palladium.
The color of pure gold is yellow. As gold is the dominant metal used in gold
jewelry, white gold is yellowish and therefore a hard protective “rhodium”
coating is applied to give the finished jewelry a silver white shiny look
similar to platinum. As with most coating, the rhodium wears off over time
and when this happens it is necessary to “rhodium” the jewelry to bring back
the silver white look. Depending on the wearer this could be as frequently
as once a year or once every couple of years.
In the table below you can find
some commonly available white gold compositions, with metal content
displayed in percent:
|
|
Yellow Gold |
Silver |
Palladium |
Copper |
Zinc |
Nickel |
|
18k |
75 |
5 |
20 |
|
|
|
|
* |
75 |
10 |
15 |
|
|
|
|
* |
75 |
15 |
10 |
|
|
|
|
* |
75 |
10.5 |
10 |
3.5 |
0.1 |
0.9 |
|
* |
75 |
9.9 |
6.4 |
5.1 |
3.5 |
1.1 |
|
* |
75 |
|
15 |
3.0 |
|
7.0 |
|
14K |
58.3 |
6 |
20 |
3 |
1 |
|
|
* |
58.3 |
32.5 |
5 |
20.5 |
1.4 |
|
Why
buy Joalan Design Moissanite?
There are many lab created gems in the market today and many of
these gems do not make the grade in terms of quality, color and cut. We deal
with the best in the industry who guarantee their product. Our stones are
hand selected for quality and beauty; we only use the very best.
The settings used in Joalan jewelry are 18K gold instead of the usual 14K.
Joalan does not use hollow settings to reduce the weight but they use solid
settings of the highest quality. Joalan does not cut corners and accepts
no compromise; neither should you. Each piece feels solid since it is made
to last, and be treasured, for a lifetime. We know that you will feel
beautiful wearing Joalan's jewelry everyday.
|
