Gemstones

Guide : The Most Important Diamond Grading Definitions

Soualy Guide : The Most Important Diamond Grading Definitions

When it comes to quality, diamonds are graded primarily on the so-called 4 Cs: color, clarity, cut, and carat. These are the four characteristics deemed most important for establishing how much a diamond is worth.

diamond-grading-definitions

Outside of the 4 Cs, there are several other diamond features that are often included in grading reports: polish, symmetry, girdle thickness, and fluorescence, among others.

However, they do not influence diamond prices to the same extent the 4 Cs do.

Below we examine the most important quality characteristics in diamond grading and take a closer look at the definitions of these features:

Clarity

Diamond clarity, as its name suggests, refers to how clear a stone looks. All diamonds have some natural imperfections such as black spots, lines, surface blemishes, etc.

The smaller, fewer, and less visible such flaws are in a stone, the higher its clarity grade.

Diamonds of poor clarity have imperfections that are easily visible with the naked eye, while high-clarity stones look fairly clean, even when seen under magnification.

Color

Color is one of the most important quality characteristics of a diamond. Diamond color is graded according to whether there are any tints in the stone that make it look less colorless as well as how easy it is to see them.

Diamonds with a top color grade have no additional hues and appear perfectly white. The lower the color grade of a stone, the easier it is to spot yellowish tints in it.

Cut

Diamond cut is another extremely important quality characteristic.

Generally, cut refers to the number, position, and shape of a stone’s facets, and cut quality is related to how proportional the key parts of a diamond are to each other.

This proportionality is usually measured by calculating ratios based on the stone’s width, length, depth, or diameter.

Certain cut proportions result in better light reflection by the diamond, maximizing its brilliance. In general, the closer a diamond’s measurements are to these proportions, the more highly the quality of its cut is graded.

The most robust cut standards that exist are those for round-cut diamonds, whereas grading scales for other cuts are not as well established.

Carat

Carat weight is a measure of how much a diamond weighs in terms of carats, and 1 carat is equal to 200 milligrams.

Although carat is not a characteristic that influences the appearance of a diamond in the same way color, clarity, and cut do, it is an important factor in diamond pricing.

In general, bigger diamonds are more expensive not just in terms of total price, but also in terms of price per carat. This makes sense – after all, bigger diamonds are much rarer to find, and that’s why they sell at a premium.

Polish

Although polish is not part of the 4 Cs and can be considered a secondary quality characteristic, it still contributes to the appearance of a diamond.

Stones with top-graded polish have a smooth surface that lets light enter the diamond easily and produce brilliance.

Diamonds with poor polish have a rough surface that obstructs light entry and thus makes the stone look less brilliant.

Symmetry

This quality characteristic refers to how symmetrical a diamond’s facets are as well as how well aligned the different parts of the stone are with each other.

No diamond is cut perfectly symmetrical, but asymmetry becomes a problem when there is obvious misalignment of facets or irregularity of their shape.

Fluorescence

Fluorescence is the ability of the diamond to emit a glow (usually blue) when exposed to UV light.

Diamond reports usually include information on whether a stone exhibits fluorescence as well as how strong it is.

Girdle

The girdle of a diamond is actually its edge, or the widest part of the stone (in round cuts). The way the girdle is usually graded is by simply stating how thick or thin it is.

In general, girdles that are too thin are undesirable as they can get chipped easily. Extremely thick girdles are also problematic because they can make the stone look disproportional.

Culet

The culet is the facet at the bottom of a diamond and is especially common in round cuts. A diamond can have a culet, or it can have none, in which case the stone’s bottom will simply be pointed.

Diamonds with no culets can be at an increased risk of chipping at the bottom, unless it is well protected by the setting.

While some jewelers argue that having a culet is more desirable, if the culet is relatively big, it could be too visible through the stone’s top.

Where to Buy Diamond Jewelry?

We recommend James Allen (read review) because you can see a 360-degree video for any diamond before buying it.

Thank you 🙂 Soualy.com Best 925 Sterling Silver Jewelry : rings, pendants, earrings, bracelets, ..

48 thoughts on “Guide : The Most Important Diamond Grading Definitions

  1. After the hemorrhage, the blood vessels in your brain may widen and narrow erratically vasospasm , causing brain cell damage
    by further limiting blood flow. http://saleviabuy.com viagra walgreens

  2. The flu often starts with chills, followed by a fever,
    muscle aches, headache, a sore throat, a cough, a runny
    nose, and a general feeling of illness. is generic viagra safe canada pharmacy generic viagra

  3. These include: regular hand washing not sharing cups or cutlery covering your
    mouth when you cough or sneeze. https://siviagmen.com compra viagra online

  4. Kmrfsoca says:

    what colour is viagra inside https://purevigra.com/ viagra auf nachnahme bestellen

  5. FrbhSycle says:

    cheaper viagra pills paradiseviagira.com viagra 50mg pills

  6. Jivhorgaw says:

    original intent for viagra cuantas veces por semana se puede tomar viagra pt ce este viagra

  7. FhsbEtery says:

    using half a viagra https://buybuyviamen.com/ what stores have viagra

  8. FbsgEtery says:

    le plus efficace cialis ou viagra viagra vittigheder viagra y el dolor de cabeza

  9. FevbEtery says:

    buy viagra online sydney buy female viagra australia discount viagra

  10. DevkSycle says:

    buy viagra without prescription generic viagras names viagra (sildenafil)

  11. Viagra for sale from canada https://mygoviagar.com generic viagra in the usa

  12. Buy viagra online price https://lightvigra.com/
    where to get female viagra pills

  13. 12.5 mg viagra https://hopeviagrin.com/ over the counter viagra

  14. FdbvSycle says:

    mexico pharmacy viagra online viagra purchase how to get viagra for women

  15. Jsweorgaw says:

    buy viagra online fast delivery generic viagra cheap generic sildenafil without a prescription

  16. FbsbEtery says:

    my dog ate a viagra pill vendita viagra roma i’m 21 and need viagra

  17. FmsgEtery says:

    how far in advance do you take viagra flushing after viagra viagra for diabetic men

  18. FnrhEtery says:

    viagra price shoppers drug mart best viagra online where to buy viagra in calgary

  19. FsfEtery says:

    college essay grammar essay writer for hire essay writing paper

  20. Kwgdsoca says:

    write an article 247 homework help admission essay writing service

  21. FgsSycle says:

    research paper basics essay help 123 help with writing papers

  22. FnrdEtery says:

    where can i get viagra in melbourne acheter viagra grapefruit viagra interaction

  23. Jgscorgaw says:

    get paid to write articles paper writing assignment help in sydney

  24. Buy college essays buyessayhelpbtg.com buy argumentative essay

  25. FnsbEtery says:

    writing high school essays do my homework for money writing a synthesis essay

  26. Help writing dissertation dissertationhelpvfh.com dissertation writing grants

  27. FqfEtery says:

    writing a political speech writing the college essay worksheet cheap dissertation help

  28. FtghEtery says:

    custom essays writing college scholarships without essays online coursework

  29. DvscSycle says:

    essay writing packet writing a journal article review research paper flow

  30. tituils says:

    Propecia Tumore Effetti Collaterali Gotpoodo cialis online india avaigo Dove Comprare Il Cialis On Line

  31. FgnsSycle says:

    cialis brand no prescription 365 cialis black cialischeap

  32. FsfgEtery says:

    viagra online without prescription viagra pro buy generic viagra with mastercard

  33. FbsbEtery says:

    non prescription cialis cialis paypal accepted free shipping for cialis from india

  34. Khedsoca says:

    alternatives to viagra men does viagra make you last longer viagra cost cvs

  35. Jgsvorgaw says:

    chipp viagra where can i get viagra across the counter in the uk where i can buy viagra in australia

  36. FqbfEtery says:

    cheapest cialis in australia buy cialis pro bootleg cialis

  37. DvncSycle says:

    online cialis generic cialis fed ex overnight delivery cialis

  38. Generic viagra online for sale xviagrnorx.com
    viagra pill

  39. FgrsEtery says:

    brand name viagra brand name viagra buy viagra australia net

  40. FhsnSycle says:

    viagra canada pharmacy chinese viagra pills viagra tablets in india

  41. DvnjSycle says:

    viagra denver viagra no prescription viagra sale online near south bend

  42. Khthsoca says:

    wall drug store pharmacy in canada discount pharmacy card

  43. NllpSycle says:

    family pharmacy http://pharmacy-onlineasxs.com/ nearest drug store

  44. LokuEtery says:

    specialty pharmacy dysfunction pharmacies

  45. Jlloorgaw says:

    canadian pharmacy online best drug store primer on line pharmacy

  46. FgvdSycle says:

    board of pharmacy ed drugs drug rx

  47. JtmfEtery says:

    best online canadian pharmacy drugs from canada family pharmacy

  48. Kbcxsoca says:

    best online pharmacies canada canadian pharmacies without prescriptions canada prescription drugs

Comments are closed.