THE PERFECT DIAMOND
we weigh diamonds using the metric system. These weights
are still translated into the carat as the unit of diamond
weight. We use sophisticated equipment like the electronic
balance. We also have formulas for determining the weight
of a stone in a mounting using size measurements. Some
of the devices used to give such accurate measurements
are the screw micrometer, the Moh gauge and the Leverage
gauge, to mention a few.
metric carat = 0.2 grams
metric carat = 200 milligrams
metric carat = 1/142 ounce
carat is divided into 100 points so
1/4 ct. = 25 points = .25 ct.
1/3 ct. = 33 points = .33 ct.
1/2 ct. = 50 points = .50 ct.
ct. = 75 points = .75 ct.
not confuse carat with karat. Carat refers to stone weight
while karat refers to fineness of gold.
the jewellery industry diamonds are used that weigh less
than .01 ct. (1 point) to greater than 100 carats. The diamonds
that weigh less than 1/5 ct. (20 points) are called melee.
These melee can be full cut (57 or 58 facetes) or single
cut (with 17 or 18 facets).
a diamond's weight increases the price per carat increases.
Larger diamonds are more rare and when these larger diamonds
also have higher color, clarity and cut grades the value
or price per carat increases greatly. The rarer, the more
Diamonds must be kept clean and be stored carefully when
they are not being worn. Because most people wear their
engagement ring 24 hours a day, 7 days a week, itís essential
that youíre always mindful of its care. Here are some
more guidelines to help keep your diamond in top condition:
wearing your diamonds while doing housework, yard
work or any other kind of rough work. Even though
a diamond is extremely durable, a hard blow could
doing household chores, never allow your jewelry to
come into contact with chlorine bleach.
you notice a loose stone setting, stones moving or
any other noticeable damage to your jewelry, do not
wear the jewelry until you have taken it to a professional
jeweler. We recommend that you have a jeweler check
the setting in your diamond ring (while you watch)
once a year.
youíre not wearing your diamonds, be sure to store
them in a fabric-lined case or in a box with dividers
or separate compartments--diamonds can scratch other
jewelry as well as each other.
Diamonds, like anything else, get smudged, soiled and
dusty. Lotions, powders, soaps--even the natural oils
from your skin--will create a film on diamonds, which
will reduce their brilliance. In addition, chemicals in
the air will oxidize or discolor the mountings. Keeping
your jewelry clean will maximize its brilliance. Here
are four ways Diamond.com suggests you clean your diamonds:
Prepare a small bowl of warm suds using any mild household
liquid detergent (be sure not to use any cleaners containing
chlorine). Brush the jewelry with a soft brush until you
have created a lather around it. With the jewelry on a
plastic or metal strainer, rinse off with warm water (be
sure not to clean your jewelry over the drain!) Pat your
jewelry dry with a soft, lint-free cloth.
Cold Water Soak:
Make a solution of 4 parts cold-water and 1 part very
mild dishwashing detergent. Soak the pieces for several
minutes. Lift out and tap gently around all sides of the
mounting with a soft brush. Rinse the pieces in the solution
once more and drain on tissue paper.
Buy one of the brand name liquid jewelry cleaners, choosing
the one that is best for the kind of stones and metals
in your jewelry. Read the label carefully and follow the
instructions. Do not touch your clean diamonds with your
fingers, as the oils from your hands will leave a film
on the stone.
The Ultrasonic Cleaner:
There are many types of these small machines available
to the public today. They will clean any piece of jewelry
that can be soaked in a liquid within a matter of minutes.
These machines often have a metal cup, which is filled
with water and detergent. When the machine is turned on,
a high-frequency turbulence is created. Avoid putting
emeralds in ultrasonic cleaners.