{"id":72110,"date":"2025-02-25T20:35:26","date_gmt":"2025-02-25T20:35:26","guid":{"rendered":"https:\/\/canadagold.ca\/?page_id=72110"},"modified":"2026-09-29T17:29:21","modified_gmt":"2026-09-29T21:29:21","slug":"grading-diamonds","status":"publish","type":"page","link":"https:\/\/canadagold.ca\/zh\/grading-diamonds\/","title":{"rendered":"\u5982\u4f55\u5206\u7d1a\u947d\u77f3"},"content":{"rendered":"\n

How to Grade Diamonds<\/h1>\n<\/div><\/div><\/div><\/div><\/div>
Home<\/a><\/span><\/span><\/div>\n<\/div><\/div><\/div><\/div><\/div>

Grading Diamonds: What You Need to Know<\/h2>\n<\/div><\/div>

The intrinsic value of <\/span>diamond jewellery<\/b> primarily stems from the diamond itself. Grading diamonds is a nuanced process because even minute differences, often invisible to the naked eye, can significantly affect the price. It's precisely why the industry relies on certified gemologists in specialized labs to accurately grade diamonds.<\/span><\/p>\n

For those not in the gemology field, accessing a gemologist may not be immediate, but you can easily schedule a consultation with one of our experts today by calling 1-888-219-7001.<\/a><\/span><\/p>\n

If you're considering a diamond investment, such as an engagement ring, this straightforward guide will help you grasp the crucial aspects of diamond buying.<\/span><\/p>\n

Starting with the 4 C's\u2014Carat, Cut, Clarity, and Colour\u2014we aim to enhance your understanding of diamond anatomy and grading standards:<\/b><\/p>\n<\/div><\/div>

\"4Cs<\/span><\/div>

Carat<\/h3>\n

Carat refers to the weight of a diamond, with one carat set at 0.2 grams. This term originates from the carob seeds once used for balancing scales due to their consistent weight. While carat weight suggests size, higher carat diamonds command exponential prices due to their rarity.\u00a0<\/span><\/p>\n

Although carat measures the diamond\u2019s weight, it can generally determine the diamond\u2019s size. Here is a chart of \u201cround\u201d diamonds showing their carat and their relative size in millimeters.<\/p>\n<\/div><\/div>

\"Diamond<\/span><\/div>
\"Diamond<\/span><\/div>

As you go up in carat, the price increases exponentially because diamonds over one carat are far rarer. A two carat diamond is worth more per carat than a one carat diamond of equal grade.<\/p>\n

What carat to purchase is all a matter of budget and personal preference.<\/p>\n<\/div><\/div>

Cut<\/h3>\n

Contrary to common belief, 'cut' does not refer to a diamond's shape but its facets' arrangement, affecting how light is captured and reflected.\u00a0 This is also termed as its \"brilliance\". In combination with clarity, an extremely well cut diamond will showcase the inherent beauty of the stone where a moderately well cut diamond will limit the interplay between the stone and available light when viewing it.<\/span><\/p>\n

Cut grades go from Ideal, Excellent, Very Good, Good,<\/strong> and then Fair & Poor<\/strong>. For a typical round brilliant cut diamond, the overall depth and table size are in a tight range that must be adhered to in order to achieve an \"Ideal\" rating.<\/p>\n<\/div><\/div>

\"Diamond<\/span><\/div>

Clarity<\/h3>\n

This grade evaluates the inherent imperfections in a diamond\u2014external blemishes and internal inclusions. Under 10x magnification, grades vary from Flawless to Included, with the cleanest diamonds being the most valuable. Remember, flaws at certain clarity levels are not visible without magnification.<\/span><\/p>\n

Blemishes are flaws you can see on the surface, like chips and scratches, and inclusions are flaws found inside the diamond, like bubbles, cracks, and mineral flecks.<\/p>\n

The clarity grades are evaluated under 10x magnification (inclusions in grades FL through VS are not<\/em> visible to the naked eye).<\/p>\n<\/div><\/div>

\"Diamond<\/span><\/div>

Colour<\/h3>\n

Diamond colour grading actually assesses the lack of colour, with a spectrum from colourless (D) to light yellow (Z). The less colour a diamond exhibits, the higher its value, except in the case of rare coloured diamonds like blues and pinks. Unlike a typical white diamond, these stones are prized for their unique color.<\/span><\/p>\n

For traditional diamonds, the more colourless the diamond, the more it will emphasize its brilliance as made evident by the diamond\u2019s cut<\/em>.<\/p>\n<\/div><\/div><\/div><\/div>

\"Sample<\/span><\/div>

The 5th \u201cC\u201d: Certificates<\/h3>\n

A diamond certificate provides a reliable report of the diamond's 4 C's, assessed by a professional using precise tools. This ensures that you are getting what you pay for. Certificates are typically issued by organizations such as GIA or AGS.<\/span> Because the 4 C\u2019s are often impossible to recognize to the untrained eye, it\u2019s important to make sure a professional has gone over your diamond(s).\u00a0<\/p>\n

Diamonds are an expensive investment. The smallest detail could drastically affect its value. If you\u2019re buying diamonds or diamond jewellery, it's always preferable to purchase stones with a certificate.<\/p>\n<\/div><\/div>

Shape (Style)<\/h3>\n

While not as impactful as the 4 C's, the shape of a diamond does influence aesthetic appeal.\u00a0 Preference for certain shapes is unique to the individual, however not all diamond shapes are ideal for all settings.\u00a0 This makes shape an important consideration for stones not yet set in a ring or other jewellery.\u00a0 Many popular shapes include:<\/span><\/p>\n<\/div><\/div>

\"Diamond<\/span><\/div>

Note that a one carat heart diamond will weigh the same as a one carat round diamond, but it does not mean that they will be the exact same size.<\/p>\n

Armed with this knowledge, you're now ready to make informed decisions about diamond purchases. For direct assistance and to schedule an expert consultation, call us at 1-888-219-7001<\/a>.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-72110","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nHow to Grade Diamonds - Canada Gold<\/title>\n<meta name=\"description\" content=\"How are diamonds graded? 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