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Pearl Gemstone Artisan Jewelry - Necklaces, Earrings, Designer Argentium Silver Jewelry, and Bridal Jewelry
By Barbara Hart 09 Dec, 2016

Read My Blog Posted 01-12-16 Entitled:

Does Karat Gold Tarnish? How Does 14K Yellow Gold Compare To 14K Gold-filled?  Click link below.

https://www.pearlgemstoneartisanjewelry.com/learn-how-14-k-gold-compares-to-14-k-gold-filled-and-all...

By Barbara Hart 01 Dec, 2016
 

The simple answer is YES to some degree karat gold does tarnish unless it is pure gold or 24 Karat Gold.

Since most karat gold is a GOLD ALLOY the other metals do contribute to tarnishing, to some degree.

 

24 Karat Yellow Gold – Pure Gold – 999.9 Fine Gold – Is the only karat yellow gold that does not tarnish.

The only carat gold that does not tarnish is 24 karat pure gold which is 999.9 % fine gold.

Pure gold is 24 karat meaning 24 parts out of 24 are pure gold.

 

Below is the GOLD ALLOY Percentages by weight for different varieties of karat gold

that will over time, if not cared for properly,  start to show some tarnishing.

(As defined  in the book “Jeweler’s Resource” First Edition By Bruce G. Knuth)

 

a.     22 K Yellow Gold - 920

            Gold 92%, *Silver 4%, and *Copper 4%   (Will Tarnish To Some Degree)

 

b.     18 K Yellow Gold - 750

            Gold 75%, *Silver 15%, and *Copper 10%   (Will Tarnish To Some Degree)

 

c.     18 K White Gold – 750 

            Gold 75%, Palladium 25%

            (Note: White gold needs to be treated with the process “re-rhodium” or eventually over time it will turn back to its yellow gold color.)

 

d.     14 K Yellow Gold – 580

            Gold 58%, *Silver 25%, *Copper 17%   (Will Tarnish To Some Degree)

 

e.     14 K White Gold – 580

            Gold 58%, Palladium 42%

            (Note: White gold needs to be treated with the process “re-rhodium” or eventually over time it will turn back to its yellow gold color.)

 

f.       14 K Gold-Filled  (Will Tarnish To Some Degree)

 

  Base Metals = Copper, zinc, and brass are called base metals in the jewelry industry .

 *The metals above with the (*) do contribute to karat yellow gold tarnishing


How Does 14 K Yellow Gold Compare To 14 K Gold-filled?

14 karat gold-filled is also called gold overlay.  It is made by using heat and pressure to apply a PERMANENT  LAYER OF 14 K GOLD to a less costly base metal.  This produces a surface of karat gold that resists tarnishing and is great for those that have an allergy to base metal.

Gold-filled is NOT gold electroplate and does not rub, flake, or peel off.    It has an actual layer of 14 karat gold overlay .

It gives my customers the beautiful rich look and performance of 14 karat gold at a fraction of the cost because that is was it is as an overlay.  It also requires the same care as all the yellow gold alloy discussed above to keep it fresh and tarnish free. 

 

The Good New! Tarnish Can Easily Be Prevented Easily!


And If Some Tarnish Does Appear Hart Has A Very Easy Trick To Remove It That Is Not Messy Or Expensive.

The good news is that tarnish can be prevented by practicing preventative maintenance to keep your beautiful jewelry from tarnishing.

See my next blog for that information.


 

 


By Barbara Hart 04 Oct, 2016


  • It is made with a touch of germanium that strongly inhibits tarnish and rarely needs polishing.
  • It is easy to care for, requires little maintenance, and very simple to keep clean.
  • It is a precious metal brighter and whiter than traditional sterling silver, platinum, and white gold.
  • It is the natural color of pure silver and does not require plating.
  • It is a better choice for customers that have an allergic sensitivity to traditional sterling silver.

By Barbara Hart 15 Sep, 2016

  

Since Pearls Are Classic And Timeless And Will Endure For Many Years To Come...

What is the proper care for cultured pearls?      

  • Keep your pearls away from excess heat, because heat (such as sunlight or commercial heaters) can result in the pearls surface becoming brittle and cracking.
  • Use jewelry cleaners that are specifically designed for pearls. (Many commercial retail cleaners contain ammonia which is damaging to pearls.)
  • Never use harsh detergents, bleaches, powdered cleaners, or baking soda, because of the damaging affect those products can have on pearls.
  • Since pearls are soft and only have a hardness of 2.5 - 4.5 on the MOHS Table of Hardness, it is strongly recommended that you do not use abrasive materials / tools, or toothbrushes to clean your pearls. 
  • It is highly recommended to use a soft cloth to rub off any dirt on the pearls, or gently use your fingernail to lift off any attached dirt that cannot be rubbed off.
  • After wearing your pearls each time, it is important to wipe off any body oils on your pearls with a soft cloth before storing them.
  • If it is necessary to wash your pearls, it is also highly recommended that you use a mild soap such as “Ivory” or “Lux” liquid soap.  (“Dawn” can be damaging to pearls).  After washing and rinsing pearls, it is important to lay them flat to dry.  Hanging them to dry will result in the cord stretching.  It is also recommended not to wear pearls when the string is wet, because the cord / string will stretch.
  • Never store your pearls in a sealed plastic bag.  It is best to store pearls in a jewelry bag,  cloth bag, or wrapped in a piece of soft cloth, because pearls can be easily scratched or damaged.
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