Platinum Jewelry
Platinum Rings Platinum Bracelets
Platinum Jewelry - Tips,
Tricks & Care
Platinum
Jewelry is a pleasure to
wear and a pleasure to
create with. Platinum is
more pliable than gold and
as such lends itself to a
variety of design options
that other metals simply do
not. Platinum is more
durable than other metals.
Platinum is stronger, wears
better and lasts longer.
Investing in platinum
jewelry is like purchasing
anything else of higher
quality, you simply get more
for your money when you buy
platinum because it will
wear better, last longer and
requires less service.
Platinum is
Purer than Gold
Most
platinum jewelry is 90 - 95%
pure, whereas 18 karat gold
is 75% pure and 14k gold is
only 58.5% pure. All of the
various alloys used to
manufacture fine jewelry
contains a blend of other
metals, platinum simply has
less. The presence of other
alloys in white gold is what
causes it to oxidize, face
and change color over time.
Because platinum is purer
than gold, it doesn't fade
or change color and it
retains it retains a polish
longer. The pure white
luster of platinum reflects
the true brilliance of
diamonds and provides the
best setting for most
precious gems. The
combination of platinum and
yellow gold creates a
perfect balance of two tonal
values for people who prefer
warmer tones.
Platinum is
Hypo Allergenic
Platinum's purity makes it
the perfect alloy for people
with sensitive skin.
Because platinum is more
pure than gold and has been
mixed less metal than other
alloys used to create
jewelry, it does not cause
allergic reactions. People
who suffer from allergic
reactions when they wear
gold jewelry in their ears
or who experience rashes on
their fingers when wearing
gold jewelry should consider
platinum.
Platinum is Rarer than Gold
Platinum
is thirty five times rarer
than gold. Platinum is
found in only a few places
throughout the world. At
present, most platinum
mining is done in South
Africa and Russia and to a
lesser extent in Zimbabwe,
Canada and South America.
It takes eight weeks and 10
tons of ore to produce a
single ounce (31.1 grams) of
platinum, whereas only five
tons of ore are mined to
produce the same amount of
gold! And for every ten
gold mines that exists in
the world, there is only one
platinum mine. During the
average year, approximately
2,700 tons of gold are used
in the process of
manufacturing jewelry but
only 88 tons of platinum are
used to make jewelry.
Platinum seems to cost more
than gold at first glance,
but upon further study it
becomes clear that the
higher cost of platinum is
simply due to the fact that
platinum is purer than gold
and much more rare.
The Density
of Platinum Makes it more
Durable
Platinum's density and
weight make it more durable
than other jewelry metals.
A six inch cube of platinum
which measures approximately
15 centimeters cubed weighs
165 pounds (75 kg) which is
almost as much as the
average man! Platinum is
also resistant to heat and
acids and has a higher
melting point than gold
(3,223°F / 1,768°C) and
requires special equipment
for casting into jewelry.
Platinum doesn't wear away
as other jewelry metals do,
it holds diamonds and other
gemstones firmly and
securely. All metals can be
scratched and displaced
however, a scratch on a
platinum piece of jewelry is
merely a displacement of the
metal. The primary
difference between gold and
platinum jewelry in terms of
the displacement of metal
caused by a scratch is that
with platinum the metal has
merely been relocated
whereas gold has a tendency
to wear away and decrease in
volume. If visible
scratches appear on
platinum, it can be
re-polished by a qualified
jeweler without substantial
loss to the piece. Perhaps
this is why platinum has
been used to fashion the
jewelry for some of the
world's most precious gems
including the Koh-I-Nor
Diamond which is part of the
British Crown Jewels.
The Versatility of Platinum
In addition to its strength
and durability, platinum is
also extremely versatile.
Platinum is so pliable that
a single gram of platinum
can be drawn into a fine
wire that stretches out for
more than a mile (almost 2
km) in length while
retaining it's strength.
This quality has enabled
jewelers the world over to
produce exquisite detailed
designs in platinum that
could not be made in any
other metal.
General Care
for Your Platinum Jewelry
-
Store platinum jewelry
separate from other
jewelry items so that
they do not scratch or
get scratched by your
other jewelry items.
Place your jewelry in a
jewelry box or a chamois
bag.
-
Store your platinum
jewelry and other
precious items in a safe
place such as a personal
safe or safety deposit
box.
-
Maintain adequate
insurance for your
valuables. If you are
unsure about the value
of your platinum jewelry
and other valuables,
take then to an
independent appraiser
for valuation.
-
Clean your platinum
jewelry periodically.
This will ensure its
fine appearance and will
help it last.
-
Clean platinum in the
same way you clean other
fine jewelry - using a
pre-packaged jewelry
cleaner or by soaking it
in a mild solution of
50% ammonia and 50% warm
water and then gently
rubbing it with a soft
cloth. Note that harsh
chemicals such as
ammonia should not be
used on gemstones other
than diamonds because it
may damage them -
consult a jewelry
professional in-person
for specific guidance in
this matter as it
applies to specific
jewelry items.
-
Have your platinum
jewelry polished and
cleaned by a qualified
jeweler twice a year and
more often if scratches
appear. Remember that
all metal can be
scratched, however with
platinum the metal has
merely been displaced.
-
Take your platinum
jewelry to a qualified
jeweler twice per year
for inspection. Only
allow a trained
professional jeweler to
work on your platinum
jewelry! Adjustments,
resizing, polishing and
cleaning of your
platinum jewelry should
be provided by a trained
bench jeweler. We can't
tell you how many times
we have repaired
platinum jewelry that
has been resized using
white gold by some
jeweler who should never
have been working on a
platinum jewelry item to
begin with!
-
Be aware that over time
platinum develops a
natural patina that many
people prefer over the
"just polished"
appearance of platinum.
When this happens to
your platinum jewelry
you may take it to a
qualified jeweler and
have the item polished
for that "high gloss"
look or simply ask them
not to remove the patina
if that is your
preference.
-
Do not wear your
platinum or other fine
jewelry when doing home
cleaning, gardening, or
other types of heavy
work or manual labor.
Jewelry is designed to
be decorative, not
indestructable.
-
Do not wear your
platinum or other fine
jewelry when working
with bleach or other
harsh chemicals.
Although the chemicals
may not affect the
platinum, they may
discolor diamonds and
other gemstones and can
cause an allergic
reaction with your skin
if trapped between the
ring and your finger ☺
Basic Platinum Product
Knowledge
The
Technical Basics of Platinum:
-
Weight of Platinum:
21.45 grams per cubic
centimeter.
-
Melting point of
Platinum: 1.768°C
(3,223°F)
-
Mining Platinum: 10 tons
of ore are mined to
obtain one ounce (31.1
grams) of pure metal.
-
Refining Platinum: It
takes eight weeks to
make a platinum ingot
from the ore.
-
Platinum Production:
Each year approximately
80 tons of platinum are
made into jewelry.
-
Properties or Platinum:
Catalyst,
hypoallergenic,
resistant to heat and
acids.
-
Platinum group metals:
Ruthenium, Palladium,
Rhodium, Iridium,
Osmium.
-
Measuring the perfection
of Platinum: 1,000 parts
- 100% platinum.
While the
gold content of a jewelry
item is indicated by a karat
stamp, the content of
platinum is displayed in
parts per thousand. This is
because gold is measured in
parts per hundred and
platinum is measured in
parts per thousand. Thus
while gold jewelry might be
stamped as being 10k, 14k,
18k or 22k, platinum will be
stamped 500, 850, 900, 950,
etc. Note that if the alloy
content is stamped on a
jewelry item, then by U.S.
Law the manufacturer of the
item must also be identified
by a stamp that designates
their identity in the form
of a Hallmark which will
appear along with the alloy
stamp and look similar to
the old fashioned brands
that ranchers stamped on
their cattle.
|
Purity levels of
Platinum and
corresponding
marks: |
|
Country |
Purity Levels |
Hallmark |
|
USA |
850, 900, 950 + |
PT, Platinum,
Plat (no
standard) |
|
Italy |
950 +
(but EEC states
850, 900, 950 +) |
PT950, Platinum |
|
Germany |
950, 999 |
PT950, PT999 |
|
Japan |
850, 900, 950,
999, 1000 |
PT then purity
level |
|
China |
900, 950 |
PT |
|
India |
950 |
PT950 |
|
Alloys mixed
with Platinum
for Jewelry |
|
Alloy |
Chemical Symbol |
Recommended
Usage |
|
Platinum -
Copper |
Pt - Cu |
Medium hard
for general
purpose |
|
Platinum -
Palladium |
Pt - Pd |
Easier to use
for delicate
settings |
|
Platinum -
Cobalt |
Pt - Co |
For casting and
wedding bands |
|
Platinum -
Tungsten |
Pt - W |
Extra hard, for
safety catches,
pins, springs,
watch backs,
etc. |
|
Platinum -
Palladium |
Pt - Pd - Cu |
Copper for chain
making and
general purpose |
|
Platinum -
Ruthenium |
Pt - Ru |
Casting,
Machining,
Fabrication |
|
Platinum -
Iridium |
Pt - Ir |
Casting,
Fabrication |
|