Skip to main contentSkip to footer
  • (708) 716-3626
  • (708) 716-3626
  • Store & Hours
  • Make an Appointment
  • AccountToggle My Account Menu
    Login
    Forgot Password?

    Don’t have an account? Sign up now

  • Toggle My Wish List
  • 0
Arezzo Jewelers logo
  • BRIDAL
    Design Your Engagement Ring
    Build Your Wedding Band
    Proposal Ready Rings
    Natural Diamond Center StoneLab Grown Diamond Center Stone
    Engagement Ring Settings
    Custom Engagement Rings
    Loose Diamonds
    Women's Bridal Bands
    Men's Wedding Bands
    Menu image
    Menu image
  • Fine Jewelry
    Diamond Fashion Jewelry
    RingsBraceletsNecklaces & PendantsEarringsLab Grown Jewelry
    Colored Stone Jewelry
    BirthstonesRingsBraceletsNecklaces & PendantsEarringsPearls
    Gold Jewelry
    ChainsBraceletsNecklacesPendants & CharmsGold EarringsGold Rings
    Religious Jewelry
    Gold CrossesDiamond CrossesReligious NecklacesReligious MedalsReligious Bracelets
    Menu image
    Menu image
  • Fashion Jewelry
    Pandora Jewelry
    Pandora CharmsPandora BraceletsPandora Gift SetsStar Wars X PANDORADisney X PandoraMARVELGame of ThronesPandora ClipsPandora NecklacesPandora RingsPandora EarringsView All Pandora
    Fine Silver Jewelry
    Silver ChainsSilver BraceletsSilver PendantsSilver Earrings
    Men's Jewelry
    Metal PendantsMetal Necklaces & ChainsMetal BraceletsMen's Accessories
    Children's Jewelry
    Children's EarringsChildren's Bracelets
    Menu image
    Menu image
  • About Us
  • Services
  • Sale
  • (708) 716-3626
  • (708) 716-3626
  • Store & Hours
  • Make an Appointment
  • AccountToggle My Account Menu
    Login
    Forgot Password?

    Don’t have an account? Sign up now

  • Toggle My Wish List
  • 0
Arezzo Jewelers logo
Log In My Cart
  • Toggle Search Menu
  • Toggle My Wishlist
  • Toggle Shopping Cart Menu
  1. Home
  2. Education
  3. Diamonds

Learn About Diamonds

The Four Cs of Diamonds:
Our Four C's of Diamonds guide can help you decide on the most important factors when shopping for a diamond. The Four C's of diamonds are known as Carat Weight, Cut, Color and Clarity.

Diamond Carat Weight

The word carat derives from the word carob, a Mediterranean seed, which has an extremely consistent weight for measuring. The greater the carat weight, the rarer, and more valuable the diamond becomes. Five metric carats weighs exactly 1 gram.

Some people want the largest diamond possible. If size is a priority, we at Arezzo Jewelers can help you classify the proper cut, color and clarity to fit your budget economically, and fit your jewelry beautifully. Many of our engagement rings can fit diamonds up to five carats or more, but each ring has different size constraints based on its size and the type of setting. Prong settings can be manipulated to fit virtually any size diamond, but tension-set diamonds and bezel set diamonds have more limitations on size.

  • Dime for size comparison
    17.9 MM
  • Search for a Round diamond, 0.10 carat (3.0mm diameter)
    0.10 CT
    (3.0 MM)
  • Search for a Round diamond, 0.15 carat (3.4mm diameter)
    0.15 CT
    (3.4 MM)
  • Search for a Round diamond, 0.20 carat (3.8mm diameter)
    0.20 CT
    (3.8 MM)
  • Search for a Round diamond, 0.25 carat (4.1mm diameter)
    0.25 CT
    (4.1 MM)
  • Search for a Round diamond, 0.5 carat (5.1mm diameter)
    0.5 CT
    (5.1 MM)
  • Search for a Round diamond, 0.75 carat (5.8mm diameter)
    0.75 CT
    (5.8 MM)
  • Search for a Round diamond, 1 carat (6.4mm diameter)
    1.0 CT
    (6.4 MM)
  • Search for a Round diamond, 1.25 carat (6.9mm diameter)
    1.25 CT
    (6.9 MM)
  • Search for a Round diamond, 1.5 carat (7.4mm diameter)
    1.5 CT
    (7.4 MM)
  • Search for a Round diamond, 1.75 carat (7.8mm diameter)
    1.75 CT
    (7.8 MM)
  • Search for a Round diamond, 2 carat (8.1mm diameter)
    2.0 CT
    (8.1 MM)
  • Search for a Round diamond, 2.5 carat (8.8mm diameter)
    2.5 CT
    (8.8 MM)
  • Search for a Round diamond, 3 carat (9.4mm diameter)
    3.0 CT
    (9.4 MM)
  • Search for a Round diamond, 3.5 carat (9.8mm diameter)
    3.5 CT
    (9.8 MM)
  • Search for a Round diamond, 4 carat (10.2mm diameter)
    4.0 CT
    (10.2 MM)
  • Search for a Round diamond, 5 carat (11.0mm diameter)
    5.0 CT
    (11.0 MM)
  • Round diamond, 6 carat (11.8mm diameter)
    6.0 CT
    (11.8 MM)
  • Round diamond, 7 carat (12.4mm diameter)
    7.0 CT
    (12.4 MM)
  • Round diamond, 8 carat (13.0mm diameter)
    8.0 CT
    (13.0 MM)
  • Round diamond, 9 carat (13.5mm diameter)
    9.0 CT
    (13.5 MM)
  • Round diamond, 10 carat (14.0mm diameter)
    10.0 CT
    (14.0 MM)
  • Round diamond, 12.5 carat (14.5mm diameter)
    12.5 CT
    (14.5 MM)
  • Round diamond, 15 carat (16.0mm diameter)
    15.0 CT
    (16.0 MM)

Diamond Cut

The true definition of cut is the quality of the proportions and symmetry of the diamond. Your diamond's proportions make a vast difference on how brightly your diamond shines. An 'ideal cut' diamond is one that allows the maximum amount of light to return through the top of the diamond, which takes into consideration the depth, table size, crown height and angle, girdle thickness and more. Our diamond professionals will be happy to assist you in selecting the best diamond cut.

After a rough diamond is mined, it is evaluated to determine its best possible cut, in order to maintain the maximum clarity, color, and carat weight. The term 'cut' is often confused with diamond 'shape', such as round brilliant or princess cut.

Diamond anatomy

Ideal

This is the rarest cut grade and reflects the most light.

Excellent

This cut grade reflects a high level of craftsmanship and light performance.

Very Good

This cut grade reflects nearly as much light as an Excellent cut grade, but for a lower price.

Good

This cut grade reflects most of the light that enters the diamond, but not as much as a Very Good cut grade.

Fair

This cut grade may appear dull or even glassy, and is very inexpensive.

Poor

This cut grade is not carried by Arezzo Jewelers and is typically not recommended.

Diamond Color

Color is one of the more noticeable attributes of a diamond and has a heavy impact on the price of the stone. Diamonds range from colorless to yellow or light brown, and are sometimes found in a spectrum of fancy colors, including yellow, blue, and even red diamonds. The less color, the rarer the diamond. After 'Z' on the color scale, diamonds become fancy yellow, which cost more because of their rarity.

F
E
D
F color diamond
E color diamond
D color diamond

Colorless

J
I
H
G
J color diamond
I color diamond
H color diamond
G color diamond

Near Colorless

Z-N
M-K
L color diamond
K color diamond

Noticeable Color

Z-N
M-K
J
I
H
G
F
E
D
L color diamond
K color diamond
J color diamond
I color diamond
H color diamond
G color diamond
F color diamond
E color diamond
D color diamond

Noticeable Color

Near Colorless

Colorless

Diamond Clarity

Diamonds are composed of mostly carbon. During the heating process, other elements become trapped inside, giving each diamond its own unique fingerprint. These inclusions help identify the clarity of your diamond. All diamonds are viewed through a 10x magnification lens by diamond graders.

Close up of inclusions in a diamond

(F) Flawless

No inclusions or blemishes are visible to a skilled grader.

(IF) Internally Flawless

No inclusions and only blemishes are visible to a skilled grader.

(VVS1-2) Very Very Slightly Included

Inclusions are difficult for a skilled grader to see.

(VS1-2) Very Slightly Included

Inclusions are clearly visible but can be characterized as minor.

(SI1-3) Slightly Included

Inclusions are noticeable to a skilled grader.

(I1-3) Included

Inclusions are obvious and may affect transparency and brilliance.

Shop Loose Diamonds
CONTACT US
  • Call us
  • Text us
VISIT US
7544 W. North Ave.
Suite 1
Elmwood Park, IL 60707
(708) 716-3626
Store Information
STORE HOURS
Monday:
Closed
Tue-Wed:Tuesday - Wednesday:
10:30am - 6:00pm
Thursday:
10:30am - 7:00pm
Friday:
10:30am - 6:00pm
Saturday:
10:30am - 5:00pm
Sunday:
Closed
SHOP JEWELRY
  • Proposal Ready Engagement Rings
  • Engagement Ring Settings
  • Mens Wedding Bands
  • Womens Wedding and Anniversary
  • Diamond Fashion Jewelry
  • Lab Grown Diamond Jewelry
  • Gold Jewelry
  • Colored Stone Jewelry
  • Religious Jewelry
  • Pearl Jewelry
  • Fine Silver Jewelry
  • Children's Jewelry
  • Men's Jewelry
  • PANDORA
  • Diamond Stud Earrings
  • Diamond Necklaces
STORE MENU
  • About Us
  • Create An Account
  • View Orders
  • View Wishlist
OUR NEWSLETTER

Signup for special offers and discounts.

FOLLOW US
  • Visit the ijo website
  • Visit the joa website
  • Visit the knot website
  • Return Policy
  • Privacy Policy
  • Terms & Conditions
  • Accessibility Statement

© 2026 Arezzo Jewelers. All Rights Reserved.

Powered by: Punchmark

My Bag
Shopping cart contents
Loading

Learn how we use cookies in our Privacy Policy or manage cookie preferences.