Skip to main contentSkip to footer
  • Toggle Search Menu
Futer Bros Jewelers logo
  • Engagement
    Choose your Style
    SolitaireSide-StoneThree StoneHaloPaveAntiqueSingle RowMulti RowBypass
    SolitaireSide-StoneThree StoneHaloPave
    AntiqueSingle RowMulti RowBypass
    View All Rings
    Women's Bands
    DiamondEmeraldRubySapphireBand + RingView All
    Men's Bands
    DiamondGoldTitaniumPlatinumDasmascus SteelView All
    Education
    The 4C's of DiamondsChoosing the Right SettingDiamond Buying GuideAnniversary Gift Guide
  • Custom Band Builder
    • Ladies - Ava Couture
    • Men - Heavy Stone
    • Men - Benchmark
  • Diamonds
    Search Diamonds
    RoundPrincessEmeraldAsscherRadiant
    CushionOvalPearMarquiseHeart
    Jewelry
    Fashion RingsEarringsPendantsNecklacesBraceletsCharms
    Education
    The 4C's of DiamondsCaring for Diamond JewelryDiamonds from AntwerpDiamond Buying GuideOther Gemstones
  • Collections
    AVA Couture
    Imperial Pearls
    Nicole Barr
    Allison Kaufman
    Futer Bros Exclusives
    Benchmark
    Ever & Ever
    Doves Jewelry
    E.L. Designs
    Frank Reubel Designs
    Parle
    Rembrandt Charms
    Royal Chain
    Stuller
  • All Jewelry
    Quick Searches
    Solitaire RingsStudsHoopsBanglesLink BraceletsGemstone by Month
    Bridal
    Engagement RingsWomen's BandsMen's Bands
    Rings
    Diamond FashionGemstone FashionPearlSilver
    Earrings
    DiamondGemstonePearlSilverJackets
    Neckwear
    DiamondGemstonePearlSilver
    Bracelets
    DiamondGemstonePearlSilver
    Jewelry by Price
    Under $500Under $1000Under $2000
    More Jewelry
    CharmsCharm BraceletsChains
  • Service + Repair
    Services
    Cleaning + InspectionsCustom DesignFinancingGold + Diamond BuyingJewelry AppraisalsJewelry EngravingView All
    Repairs
    Jewelry RepairsPearl + Bead RestringingRhodium PlatingRing ResizingTip + Prong RepairWatch RepairsView All
    Menu image
    Menu image
  • About
    Our Store
    Meet The TeamBlogCommunity InvolvementEducationOur HistoryTestimonials
    Contact Us
    Call Us: (717) 755-2366Text Us: (717) 755-2366DirectionsMake an AppointmentSend Us a Message
    Menu image
    Menu image
  • Contact
  • Toggle My Account Menu
    Login

    Don’t have an account? Sign up now

  • Toggle Wishlist
Futer Bros Jewelers logo
Log In My Cart
  • 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 Futer Bros 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 Futer Bros 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
Futer Bros Jewelers
2820 Whiteford Road, Suite 2
York, PA 17402-7625
(717) 755-2366
Store Information
Hours
Monday:
Closed
Tue-Fri:Tuesday - Friday:
10:00am - 6:00pm
Saturday:
10:00am - 4:00pm
Sunday:
Closed
Shop Now
  • Lab Grown Diamond Jewelry
  • Engagement Rings
  • Wedding Bands
  • Rings
  • Earrings
  • Bracelets
  • Neckwear
  • Chains
  • Charms and Accessories
Services + Repairs
  • Financing
  • Jewelry Repairs
  • Watch Repairs
  • Custom Design
  • Cleaning + Inspections
  • Jewelry Appraisals
  • Gold + Diamond Buying
  • View More
Store Menu
  • Blog
  • Community Involvement
  • Education
  • Our History
  • Testimonials
Follow Us
  • Visit the ags website
  • Visit the gia website
  • Visit the ijo website
  • Visit the rjo website
  • Visit the knot website
  • Return Policy
  • Privacy Policy
  • Terms & Conditions
  • Accessibility Statement

© 2026 Futer Bros 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.