Skip to main contentSkip to footer
SAVE 15% HEART JEWELRY FOR VALENTINES DAY - SHOP SALE NOW
  • (516) 766-2614
  • Store & Hours
  • Make an Appointment
  • Wish ListToggle My Wish List
  • AccountToggle My Account Menu
    Login
    Forgot Password?

    Don’t have an account? Sign up now

  • Bag (0)
  • Toggle Search Menu
  • Toggle My Wishlist
  • Toggle Shopping Cart Menu
SVS Fine Jewelry logo
  • Diamonds & Engagement
    Ready to Ship
    Natural Ready to ShipLab Grown Ready to ShipMoissanite Ready to Ship
    Shop by Ring Style
    Shop All StylesSolitaireHalo & Under HaloVintageThree Stone
    Custom Design
    Forever Custom Service
    Shop Loose Diamonds
    Shop Natural DiamondsShop Lab Grown Diamonds
    Shop by Center Stone Shape
    RoundPrincessEmeraldCushionPearMarquiseOval
    Shop Designer Rings for Her
    Shop All Engagement RingsA JaffeDe Beers ForevermarkGabriel & Co.Simon GSylvieVerragio
    Why SVS?
    Financing OptionsDiamond Price Match GuaranteeLifetime Diamond Trade Up
    Propose Tonight:
    Ready to Ship Rings >>

    Explore All Diamonds & Engagement
  • Wedding Bands
    Designers for Her
    A. JaffeDe Beers ForevermarkGabriel & Co.VerragioTrue Romance
    Styles for Her
    Shop All StylesEternityContourVintageDiamondColor AccentInsert
    Shop All Wedding Rings for Her >>
    Designers for Him
    Crown RingBleu RoyaleElysiumGabriel & Co.Verragio
    Styles for Him
    Shop All StylesDiamondWhite GoldRose GoldYellow GoldTantalumContemporary Metals
    Shop All Wedding Bands for Him >>

    Explore All Wedding Bands
  • Jewelry & Watches
    Women's Jewelry
    BraceletsEarringsNecklacesRingsAnkletsEngagementPersonalized JewelryShop by Designer
    Men's Jewelry
    BraceletsChains/NecklacesRingsCuff LinksMoney ClipsWedding Bands
    Shop Personalized Jewelry >>
    Diamond Essentials
    Stud EarringsDiamond BraceletsFashion RingsDiamond NecklacesHoop EarringsLab Grown Jewelry
    Watches
    MicheleG-ShockRaymond WeilPre-Owned RolexLadies WatchesMen's Watches
    Permanent Jewelry
    Make an Appointment
    Shop Diamond Essentials >>

    Explore All Jewelry & Watches
  • Designers
    A.JAFFE
    ALOR Fine Jewelry
    AMEN Kid's Fashion Jewelry
    Blackjack Men's Jewelry
    Bleu Royale Wedding Bands
    Crown Ring Wedding Bands
    De Beers Forevermark
    Dee Berkley
    Desmos Jewels
    G-Shock
    Gabriel & Co
    Grand Bands
    Italgem Steel Men's Jewelry
    Kiddie Kraft Kids Jewelry
    Lab Grown Diamond Jewelry
    Lafonn
    Melinda Maria
    Michele Watch
    Monte Luna
    MOVA Globes
    Noam Carver
    Personalized Jewelry
    Pre-Owned Watches
    Raymond Weil
    Roman + Jules
    Secrid Wallets
    Shy Creation
    Simon G
    Stephen Wilson Art
    SVS Exclusive Collection
    Sylvie
    True Romance
    Verragio

    Designers
  • Services
    Our Services
    AppraisalsCleaningCustom DesignEngravingFinancingGift CardsGold & Diamond BuyingIn-House LayawayJewelry RepairJewelry InsurancePearl RestringingPermanent JewelryWatch RepairWish List
    Jewelry Repair
    Watch Repair

    Explore All Services
  • Sale
  • Gifts
    Shop Our Gift Guides
    Wife & MomHusband & DadGraduationHoliday Gift GuideValentine's DayFashion Magazine
    Gifts by Style
    Gift CardPersonalized JewelryStud EarringsNecklacesBraceletsFashion RingsTravel Jewelry Case
    Gifts by Price
    Under $250Under $500Under $1000Under $3000Under $5000Over $5000
    Not sure what to give? Give an SVS Gift Card

    Explore All Gifts
Location
My Cart (0)
Checkout
Log In
Call Us
  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 SVS Fine Jewelry 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 SVS Fine Jewelry 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 516.766.2614
Text Us 516.346.5355
Email Us Here
Visit Us
3323 Long Beach Rd
Oceanside, NY 11572
Mon - Wed: 10am - 6pm
Thurs: 10am - 8pm
Fri - Sat: 10am - 6pm
Sun: 12pm - 4pm
Customer Care
  • Order Lookup
  • Returns
  • Our Services
  • Watch Repair
  • Appointments
  • Lifetime Warranty
  • Upgrade Program
  • Shipping & In-Store Pickup
  • Price Match Guarantee
  • Jewelry Insurance
  • Financing
More Ways to Shop
  • Offers & Events
  • Our Catalog
  • The SVS Gift Card
  • Wish List
About Us
  • Why SVS?
  • Community
  • FAQ's
  • Reviews
  • The SVS Blog
  • Military & First Responders
  • Careers
Education
  • The Four C’s of Diamonds
  • Lab Grown Diamonds
  • Moissanite
  • Jewelry Care
  • Most Popular Diamond Shapes
  • Anniversary Gift Guide
Shop Jewelry
  • All Jewelry
  • Rings
  • Earrings
  • Necklaces
  • Men’s Jewelry
  • Watches
  • Design Your Own Ring
BECOME AN SVS INSIDER
Follow Us

© 2022 SVS Fine Jewelry. All Rights Reserved. Website designed, maintained, and hosted by Punchmark. Accessibility Statement.

Terms and Conditions Privacy Policy Accessibility Statement
  • Return Policy
  • Privacy Policy
  • Terms & Conditions
  • Accessibility Statement

© 2026 SVS Fine Jewelry. 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.