PLATINUM

Platinum is a highly resistant metal for its great malleability and lack of production in the world is a very expensive metal, even more than gold in jewelry we can use either to create the metal rings or bathe the parts for acquire the bright white lights and is therefore a unique color of platinum.

YELLOW GOLD

Traditional color, besides being the oldest metal used for jewelry is less resistant but more malleable platinum, gold is known as pure in its expression of 24kilates despite being very strong it must be used in alloys (mixed 2 or more metals) to give greater strength.
 
The karat of gold it contains a piece can be found in the following expressions

Total carat gold alloy Quantity
24 Kt 100% pure gold without alloy

Kt 22 91.66% 8.4%
18 Kt 75% 25%
14 Kt 58.5% 41.5%
10 Kt 41.10% 58.3%
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So when we say that a piece of jewelry is 14 or 18 Kt we refer to the amount of gold that contains the gem.

WHITE GOLD

Metals is one of the most sought after today by the white color that resembles platinum. White gold is basically the same attributes as the yellow gold, except it is mixed with different metals - nickel, zinc, silver and palladium - that give it a white color. Often, white gold is plated with rhodium. Rhodium is a shiny, white, a member of the platinum family, and is used to make white gold look completely white. White gold is an excellent choice to complement the very white diamonds, as they strengthen their brilliance and sparkle.

ROSE GOLD

It's a very bold color, elegant and unusual. Is achieved through copper alloy which is 25% of the alloy and the rest is 75% gold. It is ideal for parts with diamonds.