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2. Diamond clarity - Wikipedia

   en.wikipedia.org/wiki/Diamond_clarity

   Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects, called blemishes. Clarity is one of the four Cs of diamond grading, the others being carat , color , and cut .

3. NFPA 704 - Wikipedia

   en.wikipedia.org/wiki/NFPA_704

   First "tentatively adopted as a guide" in 1960, [1] and revised several times since then, it defines the "Safety Square" or "Fire Diamond" which is used to quickly and easily identify the risks posed by hazardous materials. This helps determine what, if any, special equipment should be used, procedures followed, or precautions taken during the ...

4. Four Cs - Wikipedia

   en.wikipedia.org/wiki/Four_Cs

   Four Cs may refer to: Four Cs (education), a group of learning competencies and skills in 21st century learning; Diamond (gemstone), the Four Cs are carat, cut, color, and clarity; Marketing mix, may refer to two possible marketing-related concepts: Four 'C's in 7Cs compass model (Co-marketing) Four 'C's in consumer-oriented model

5. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   The quality of a diamond's cut is widely considered the most important of the four Cs in determining the beauty of a diamond; indeed, it is commonly acknowledged that a well-cut diamond can appear to be of greater carat weight, and have clarity and color appear to be of better grade than they actually are.

6. Diamonds as an investment - Wikipedia

   en.wikipedia.org/wiki/Diamonds_as_an_investment

   Diamonds, because of their hardness, are one of the few gemstones that have a recycled market. Recycled diamonds are diamonds that have been polished and set into jewelry, then removed and possibly re-cut before sale back into the diamond industry. This sector accounts for 5%–10% of market supply. [25]

7. AOL Advantage Plans - AOL Help

   help.aol.com/products/aol-advantage

   Get critical products for computer security, identity theft protection, premium technical support, and more. Choose the plan based on you and your family’s needs.