Education : Choosing gold for Your Diamond

Choosing a Metal


Once you have chosen the perfect diamond, you will want to consider how it can be best displayed.

If you choose platinum for you engagement ring, you should make sure it has "900plat" (or "950 Plat") stamp; this means that the metal is 90% (or 95%) pure.

  • The precious metal you choose for the setting will impact the price, the look and even the feel of the ring. While different metals can be found in other types of jewelry, most engagement rings are made of either platinum, gold or palladium.

24 carat gold (24k) is 100% pure gold - it is not alloyed with any other metals.18k gold is 75% pure. 14k gold is 58.3% pure. and 10k gold (the lowest legal amount)is 41.7% pure.


  • Because it is a softer metal, pure gold is rarely used in jewelry. Instead gold is normally combined (or “alloyed”) with other metals, such as silver, copper, nickel, and zinc to increase its durability.
  • The purity of gold is measured in karats (remember, this is different from the word "carat", which refers to the size of a diamond).


  • The traditional look of yellow gold is normally achieved by alloying the gold with silver and copper.
  • White gold is alloyed with nickel or palladium and is often chosen for engagement and wedding rings.
  • Rose gold is alloyed with copper. Though rose gold is a popular choice for other jewelry, it is normally not found in engagement rings.


  • Because gold is not as rare as platinum, it is usually less expensive.
  • The price of gold depends on its purity (number of karats) and its size.
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