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Terminology Key
Gold Marking Meaning
K Karat
KP Karat Plumb
9K, .375, 3796 9 Karat
10K, .416, .417, 41% 10 Karat
14K, .583, .585, 58% 14 Karat
18K, .750, 75% 18 Karat
22K, .916 .917, 91% 22 Karat
24K, Pure Gold 24 Karat
K.P., GP, KGP, GEP, HGP, HGE, EP, GE Gold Plated
KGF, GF, 1/20th Gold Filled
925 Gold Plated Silver
Silver Marking Meaning
.925, Ster, Sterling, SS, Mexico Sterling Silver
.900, Coin Silver, Pure Coin 90% Coin Silver
.800 80% Coin Silver
EP, EPS, EPNS Silver Plated
Oneida, Rogers, Triple Silver, International Silver, Community Silver, 1S, CS Silver Plated
.999, Fine Silver Pure Silver
Platinum Marking Meaning
Plat, Pt., .950 95% Platinum
.900 Pt. or .900 Plat. 90% Platinum
.850 Pt. or .850 Plat. 85% Platinum
GIA Certified Diamonds, Diamond Buyer, Sell My Diamonds
Inventory  >  Certified Diamonds  >  GIA


When you buy a certified diamond by the GIA in Columbus, Ohio, Repasky Gold & Silver knows that it’s usually a significant investment. Whether you purchase an engagement ring, diamond earrings and a pendant, or a wedding ring, the occasion is often emotional and you want to get the best diamond for your money.

A Gemological Institute of America (GIA) diamond certification is the most popular certification in the world. GIA is a nonprofit 501(c)(3) organization that established the “4Cs” and the International Diamond Grading System ™ in 1940. And today, GIA has become the worldwide standard for evaluating diamond quality.

What to look for when buying a GIA certified diamond:

* Cut: the sparkle and brilliance of diamond comes from the cut
* Color: the less color, the higher the value
* Clarity: inclusions and blemishes affect the clarity of the diamond
* Carat Weight: what size diamond is right for you?

GIA Certified Diamond Reports
When the GIA certifies a diamond they adhere to very strict standards. To ensure that the diamond you buy has a legitimate GIA certificate check for a hologram, security screen or microprint lines, as the GIA uses these security features to prevent forgery or duplication. You can also contact the GIA to verify the information on your report; they keep the records in their database.

Buy GIA certified diamonds from our Columbus, Ohio, inventory. Repasky Gold & Silver sells loose diamonds, diamond engagement and wedding rings, necklaces, earrings and more! We sell locally, in our stores, and also on our website.

Sell us your diamond earrings, rings and more. Repasky Gold 
& Silver pays top dollar for your gold, silver, diamonds and 
jewelry. Experienced and educated, we conveniently serve 
customers in Central Ohio.
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