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Buying Gold and Platinum Jewelry: What You Need To Know.
Shopping for Gold or Platinum jewelry? Excited about getting her that special engagement ring? Blinded by the beauty of all those gorgeous rings in the jeweler's tray? A bit confused by all of the choices?
Don't blame you. It can be daunting.
Beyond the mesmerizing surface bling-bling, here is what you need to know about the correct composition of Gold and Platinum jewelry products:
1. Make sure that jewelry containing gold or platinum is correctly marked in compliance with the law.
2. The item's karatage must be identified to you in some way (verbally, through signage, etc.).
3. If an item is stamped to indicate the quality of metal it contains, it must have a trademark in close proximity to the quality mark. (A trademark is a symbol stamped next to the quality mark and may be initials or a logo to identity the make of the item.)
4. Items containing 950 parts per thousand (95%) may be marked as platinum.
5. Items that are 85% or 95% platinum must be marked with the platinum content. Examples: 900Pt, 850Pt.
6. Items containing less than 85% platinum must detail the platinum group metal. Example: 750Pt200Irid. Total parts must equal 950 (95%).
Note: Platinum group metals are: Platinum, Palladium, Rhodium, Iridium, Ruthenium and Osmium.
Gold
10 karat gold is the minimum fineness of gold that may be sold in the U.S. Jewelry under 10kt fineness may not be sold as gold.
Jewelry is made of many different types of gold: solid gold, gold plate, gold filled, gold overlay, gold electroplate, gold flashed/washed or rolled gold plated.
Platinum Rings
Platinum is a heavier and denser metal than white gold and is more expensive than gold which contains a combination of alloys. Platinum rings are extremely appealing for the following reasons:
* Platinum is incredibly durable (much more so than white gold.)
* Platinum will hold your loose diamond or gemstone more securely than white gold which is a softer, more pliable metal.
* Platinum develops a beautiful sheen or patina over time.
* Platinum rings are hypoallergenic and will resist tarnishing better than gold.
Gold Rings
Gold rings are much less expensive than platinum rings and have the following characteristics:
* Gold will not scratch as easy as platinum.
* Because gold also contains other alloys its color will fluctuate depending on the purity of the gold that is used.
* Gold will tend to fade eventually and will require repolishing.
In Depth Analysis
Platinum
Platinum is valued as the finest metal for jewelry. It is the strongest metal and weighs twice as much as its gold counterpart. Additionally, the exceptional weight and density of this precious metal make it extremely attractive and desirable, and will increase its value significantly. Platinum engagement rings, and platinum diamond rings, have taken the market by storm due to the fact that the sheen or patina of the metal does a better job than gold of highlighting/contrasting the beauty of the set diamonds. The platinum metal is part of a group of six metals including; platinum, iridium, ruthenium, rhodium, palladium, and osmium. These metals are all extremely similar to platinum in their chemistry, density, and weight. As a matter of fact, they are often difficult to distinguish from each other. Platinum jewelry is also unique in that it is the only metal that is of 90% to 95% purity.
Gold
Gold in its purest form is an extremely soft and pliable metal. Because it is so soft and malleable it cannot be used in jewelry since it would disfigure with normal wear. Because of this problem jewelers resort to an alloyed gold known as karat gold (different from "carat" measurement used to characterize diamond weight) Adding alloys to the gold will make the metal tougher and harder so that it may be used in jewelry applications. It will also result in different colors depending on the different combinations used. White gold contains approximately 10-20% nickel, with combinations of platinum, zinc, copper, and palladium. This combination makes white gold a tougher metal than yellow gold. The amount of gold in any given combination is described by karat number. Examples of these numbers would be 14k, 18k, or 24k. The number indicates how many components of pure gold are included in the 24 components that make up the alloy. The following chart illustrates these combinations:
10k = 10/24 = 41.67% purity of gold
14k = 14/24 = 58.33% purity of gold
18k = 18/24 = 75.00% purity of gold
24k = 24/24 = 100% pure gold
