Skip to primary navigationSkip to main contentSkip to footer
Check out our New Arrivals!
We have more selections in the stores if you don't see what your looking for on the website.
Click Here!
  • ALEXANDRIA LOCATION 703-836-1401
  • MIDDLEBURG LOCATION 540-687-3100
  • Contact UsToggle Contact Us Menu
    • Make an Appointment
    • Old Town Alexandria
    • Middleburg
    • Salamander Resort & Spa
  • My AccountToggle My Account Menu
  • SearchToggle Toolbar Search Menu
  • Wish ListToggle My Wish List
Mystique Jewelers
  • Love & Engagement
    Shop All Engagement Rings
    Mystique Engagement Rings
    3-Stone SettingsBezel Engagement RingsChannel SetClassic SolitaireGemstone Engagement RingsHalo SettingsHidden HaloPave RingsSettings With SidestonesSplit ShankVintage Inspired
    Lab Grown Engagement Rings
    Shop Diamonds
    Lab Grown Diamond EducationNatural Diamond Education
    Build Your Wedding Band
    Wedding Bands with Stones
    Wedding Bands without Stones
    Create a Wish List
    Contact an Expert

    Explore All Love & Engagement
  • Jewelry
    Shop All Jewelry
    Rings
    Shop All RingsDiamond RingsGold RingsGemstone RingsPearl Rings
    Earrings
    Shop All EarringsDiamond EarringsDiamond Stud EarringsGold EarringsGemstone EarringsEarring CharmsPearl EarringsHoop Earrings
    Bracelets
    Shop All BraceletsDiamond BraceletsGold BraceletsGemstone BraceletsCuff Fashion BraceletsPearl Bracelets
    Necklaces & Pendants
    Shop All NeckalcesDiamond NeckalcesGold NeckalcesGemstone NecklacesPendants & EnhancersLocketsThe Locket BarPearl NecklacesCharms
    Lab Grown Jewlery
    Lab Diamond Stud EarringLab Diamond NecklacesLab Diamond Bracelets
    Men's Jewelry
    Men's RingsWatchesCufflinks
    New Arrivals
    Estate Jewelry
    Equestrian Jewelry
    Last Call
    Gift Cards
    Holiday Gift Ideas
    Vintage Lux Bags

    Explore All Jewelry
  • Custom Design
  • Our Brands
    Ammara StoneBenchmarkDina MackneyDoves JewelryEquestrianEvocateur
    ForgeGumuchianHoops and CharmsKC DesignsLex Fine JewelryLisa Nik
    Mazza CompanyMonica Rich KosannPenny PrevillePeter StormRoman + JulesRudolph Friedman
    Sloane Street by Gadbois JewelryTantalumThe Mystique CollectionVincent Peach

    Our Brands
  • Services
    Why Mystique?
    Book an Appointment
    Services
    Jewelry Repairs & ResizingJewelry AppraisalJewelry Cleaning, Polishing, & MaintenanceStone Matching & Setting StonesWatch RepairJewelry EngravingFinancingGold Buying & ConsignmentConcierge
     

    Explore All Services
  • About
    Learn More
    Our StoryEventsConflict Free DiamondsJewelry EducationMystique Giving Back
     
     

    Explore All About
  • Holiday Gift Ideas
  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 Mystique 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 Mystique 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
Mystique Jewelers Locations
    Old Town Alexandria
    123 S. Fairfax Street
    Alexandria, VA 22314
    (703) 836-1401
    Store Information
    Middleburg
    112 W Washington Street
    Middleburg, VA 20117
    (540) 687-3100
    Store Information
    Salamander Resort & Spa
    500 N Pendleton St
    Middleburg, VA 20118
    Store Information
    Jewelry
    • Gift Ideas
    • MONICA RICH KOSANN
    • Jewelry Box
    • Wedding Bands without Stones
    • Mystique Engagement Rings
    • Lab Grown Engagement Rings
    • Lab Grown Jewelry
    • Wedding Bands with Stones
    • Rings
    • Earrings
    • Bracelets
    • Pendants & Enhancers
    • Necklaces
    • Pearls
    • Charms
    • Holiday Gift Ideas
    • estate jewelry
    • Men's Jewelry
    • Equestrian Jewelry
    • Gifts Under $500
    • LAST CALL
    • Mystique Fine Jewelry
    • Diamond Fashion Rings
    • Fashion Rings
    • Pendants
    • Earring Jackets
    • Gift Cards
    • Tennis Bracelets
    • Cuff Bracelets
    • Brooches
    • Bangle Bracelets
    • Fashion Earrings
    Collections
    • Ammara Stone
    • Benchmark
    • Dina Mackney
    • Doves Jewelry
    • Equestrian
    • Evocateur
    • Forge
    • GN Diamond
    • Gumuchian
    • Hoops and Charms
    • KC Designs
    • Lex Fine Jewelry
    • Lisa Nik
    • Mazza Company
    • Monica Rich Kosann
    • Penny Preville
    • Peter Storm
    • Roman + Jules
    • Rudolph Friedman
    • Sloane Street by Gadbois Jewelry
    • Tantalum
    • The Mystique Collection
    • Vincent Peach
    Our Store
    • Our Story
    • Custom Jewelry Design
    • Services
    Mailing List

    Sign up for special offers and discounts

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

    © 2025 Mystique Jewelers. All Rights Reserved.

    Powered by: Punchmark

    Loading

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