Gold and platinum are precious metals used in jewelry. Gold is alloyed with other metals like silver and copper to increase its strength for everyday wear, with higher karat weights containing more gold. Common karat weights are 14k and 18k gold. Platinum is a silver-white, durable metal that is up to 95% pure and ideal for setting diamonds due to its hardness and ability to securely hold gems without discoloration. Both metals are valued for their rarity, strength, and resistance to tarnish.

1. GOLD AND PLATINUM EDUCATION
GOLD
Gold has an extraordinary heritage with unique qualities. As an enduring element found
naturally in a distinct yellow color, gold is resistant to rust, tarnish, and corrosion. Although
gold is very strong, it's also the most malleable of all precious metals.
PURITY
Pure gold is too soft for everyday wear, so it is alloyed with a mixture of metals like silver,
copper, nickel, and zinc to give it strength and durability. Karatage, denoted by a number
followed by "k" indicates purity, or how much of the metal in a piece of jewelry is gold.
Karatage is expressed in 24ths, making 24k gold, 100% gold.

2. We craft our jewelry using both 18k and 14k gold. 18k gold is composed of 75% gold, which
is alloyed with other metals to make it strong enough for everyday wear. 14k gold is
composed of 58.3% gold and 41.7% of other metals.
COLOR
The color of gold is determined by two factors:
● The type of metal alloys included
● The percentage of each metal alloy
YELLOW GOLD
Yellow Gold has an inherent classic and deep look about it and radiates victory and
opulence. Natural gold and color-saturated alloys are what give yellow gold jewelry and its
rich shine. The alloys most commonly used, are copper with a red hue, and silver featuring a
green hue. An expert mixture of copper, silver and pure gold gives this precious metal its
signature warmth.

3. WHITE GOLD
White Gold has gained popularity over the past few years since it fits with any occasion and
any outfit. A silvery white character is what makes white gold jewelry so appealing. In order
to make the gold white, it is combined with metal alloys that are white in nature and plated
with an extremely hard element called
rhodium.
ROSE GOLD
The beautiful pink hue of rose gold jewelry is created by using a copper alloy. Again, the
overall percentages of metal alloys is the same for rose gold as it is for yellow or white, there
is just a different mixture in what
alloys are used. However, it is not
generally considered strong enough
for everyday wear. At Sarvada
Jewels, for all our solitaire jewelry
products, we use rose gold polish to
achieve the look along with durability.

4. 24 KARAT = 100% GOLD
Too soft for fine jewelry
22 KARAT = 91.7% GOLD
Too soft for fine jewelry
18 KARAT = 75.0% GOLD
Ideal for fine jewelry
14 KARAT = 58.3% GOLD
Ideal for fine jewelry
10 KARAT = 41.7% GOLD
Not acceptable for jewelry
HALLMARKING
Hallmarking of gold jewellery is on a voluntary basis under the Bureau of Indian Standards
Act, 1986, in accordance with the Vienna Conventions international criteria on hallmarking.
A Hallmark consists of five components -
1. The BIS Mark
2. The fineness number (corresponding to given Karatage)
3. The Assaying and Hallmarking Centre's mark

5. 4. The jeweller's mark
5. The year of marking denoted by a code letter and decided by BIS (e.g. the code
letter 'A' was approved by BIS for the year 2000, 'B' being used for the year 2001
and 'C' for 2002).
The marking is done either using punches or laser marking machine.
The BIS hallmark, a mark of conformity widely accepted by the consumer bestows the
additional confidence to the consumer on the purity of gold jewellery.
PLATINUM
Called the "King of Metals", platinum is a very heavy (nearly twice the weight of gold),
silver-white metal that is very ductile. Although it is a soft metal, platinum is not easily
scratched, never tarnishes, and is very strong and durable. It is the strongest precious metal
used in jewelry, and has good resistance to corrosion and chemicals.
Platinum is also the only precious metal used in fine jewellery that is up to 95 percent pure.
Small amounts of iridium and ruthenium are commonly added to it, to give it a harder,
stronger alloy that retains the advantages of pure platinum.
Platinum's subtle beauty and its tendency to not add colour of its own, enhances a
diamond's natural brilliance and fire, making it an excellent metal for diamond jewellery
settings. It does not change shape or wear away so precious stones are held firmly and
securely.

6. Because of its purity, platinum is naturally hypoallergenic, a plus for people with sensitive
skin or allergies to certain metals.
Today, platinum is more valuable than gold. Although it is used in many industrial
applications, including the automotive industry, platinum jewellery consistently commands
higher prices because of its rarity.