BUYER'S GUIDE - 4 C's


About the 4Cs of Diamonds

Because diamonds are so valuable, itís essential to have a universal grading system for comparing their quality. In the 1940s and í50s, GIA developed the 4Cs and the GIA International Diamond Grading Systemô to objectively compare and evaluate diamonds. Read more here
Carat
Diamonds and other gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the same weight as a paperclip. (Donít confuse carat with karat, as in ď18K gold,Ē which refers to gold purity.) Just as a dollar is divided into 100 pennies, a carat is divided into 100 points. For example, a 50-point diamond weighs 0.50 carats. But two diamonds of equal weight can have very different values depending on the other members of the Four Cís: clarity, color and cut. The majority of diamonds used in fine jewelry weigh one carat or less.
Color
Diamond color is all about what you canít see. Diamonds are valued by how closely they approach colorlessness Ė the less color, the higher their value. (The exception to this is fancy-color diamonds, such as pinks and blues, which lie outside this color range.) Most diamonds found in jewelry stores run from colorless to near-colorless, with slight hints of yellow or brown.

GIAís color-grading scale for diamonds is the industry standard. The scale begins with the letter D, representing colorless, and continues with increasing presence of color to the letter Z, or near-colorless. 
Clarity
Because diamonds formed deep within the earth, under extreme heat and pressure, they often contain unique birthmarks, either internal (inclusions) or external (blemishes). Diamond clarity refers to the absence of these inclusions and blemishes. Diamonds without these birthmarks are rare, and rarity affects a diamondís value. Using the GIA International Diamond Grading Systemô, diamonds are assigned a clarity grade that ranges from flawless (FL) to diamonds with obvious inclusions (I3).

Every diamond is unique. None is absolutely perfect under 10◊ magnification, though some come close. Known as Flawless diamonds, these are exceptionally rare. Most jewelers have never even seen one.
Cut
Cut is the factor that fuels a diamondís fire, sparkle and brilliance. The traditional 58 facets in a round brilliant diamond, each precisely cut and defined, are as small as two millimeters in diameter. But without this precision, a diamond wouldnít be nearly as beautiful. The allure of a particular diamond depends more on cut than anything else.

An understanding of diamond cut begins with the shape of a diamond. The standard round brilliant is the shape used in most diamond jewelry. All others are known as fancy shapes. Traditional fancy shapes include the marquise, pear, oval and emerald cuts. Hearts, cushions, triangles and a variety of others are also gaining popularity in diamond jewelry.
Home

watches

Marriage

Women 

Men

Services

Buyers Guide
4 C's 
How to buy
Gemstones
Birthstone
Guide  
Anniversary
Stones

About Us


Designers

Contact




































Store Hours:   Tuesday - Friday: 11:00 am - 7:00 pm  Saturday: 11:00 am - 5:00 pm

Phone 216-767-5700: Fax 216-767-5703   ----      15201 Detroit Ave. Lakewood Ohio, 44107

  


HOME | CONTACT US | DISCLAIMER



info@GIANNAJEWELERS.com

Gianna Jewelers is a full service retail jewelry store located in Lakewood, Ohio. Our new Cuyahoga County store location has a full selection of women's and men's jewelry. We offer a wide variety of rings, necklaces, bracelets, pendants for your shopping experience. Our Bridal styles range from modern to traditional. Your retail Cleveland jewelry shopping experience should be the best. Come in today and experience a calm and relaxing atmosphere with top quality creations and staff. We provide watch repair, jewelry repair, diamond and gem appraisals, custom jewelry creation, remounting, and more. Gianna Jewelers is a jewelry store in Cleveland serving the greater Cleveland area.. Our Cleveland Jewelry store specializes in diamonds and watches for the discriminating Greater Cleveland customer .