What are diamond cuts?<\/h3>\n\n\n\n
In simple terms, diamond cuts determine how a natural diamond plays with light \u2014 how it bends, reflects and refracts every beam that hits it.<\/p>\n\n\n\n
This interaction is what gives a diamond its fire (those gorgeous flashes of colour), brilliance (that white sparkle) and scintillation (the \u2018dance\u2019 of light as the diamond moves).<\/p>\n\n\n\n
Put another way: whether you\u2019re choosing a wedding maang tikka or a tennis bracelet you\u2019ll wear every day, it\u2019s the cut that shapes the diamond\u2019s visual personality. It\u2019s what makes it look alive.<\/p>\n\n\n\n How important is a diamond\u2019s cut? Well, even a high-carat, flawless diamond can appear flat-looking if its cut isn\u2019t up to scratch. Think of it like a perfectly cast actor with a bad script. A well-cut diamond with slightly lower grading in terms of the other Cs, on the other hand, can outshine the rest if its cut is, quite literally, on point.<\/p>\n\n\n\n The magnificence of all the princess-cut diamond engagement rings on your Pinterest board and the round brilliant-cut diamond pendants that you dream of gifting yourself someday soon is all determined, to a great degree, by how the diamonds are cut.<\/p>\n\n\n\n Behind every breathtaking diamond is a cutter, also called a diamantaire, who made dozens (sometimes hundreds) of small but very important decisions. These carefully made creative calls balance two competing priorities: to preserve a diamond\u2019s carat weight and maximise its brilliance.<\/p>\n\n\n\n When cutters evaluate a rough diamond before working on it, using state-of-the-art mapping technology and artistic intuition, they consider everything from its natural shape and internal flaws to external blemishes and potential yield (the amount of usable diamond that\u2019s left after it\u2019s been cut). Picture the cutter like a fashion designer, tailoring couture and cutting away excess fabric to sculpt the perfect fit.<\/p>\n\n\n\n How well diamonds are cut is a decision that doesn\u2019t just affect how the jewel looks today but impacts how it may be financially valued decades down the line.<\/p>\n\n\n\n Fun fact: In the late 1900s, India accounted for about 70% by weight and 35% by (wholesale) value of the diamonds polished annually worldwide1<\/a><\/sup>. And it is estimated that over 90% of the world\u2019s diamonds are cut and polished in India now2<\/a><\/sup>.<\/p>\n\n\n\n But how exactly are these diamonds cut and polished? What constitutes the diamond cutting process in the centres in cities like Surat?<\/p>\n\n\n\n For starters, it requires a lot<\/em> of precision.<\/p>\n\n\n\n After the rough diamonds are sorted and marked, they undergo a sawing process. A specialised saw, rotating at a speed of 4000 revolutions per minute, or laser is used to cut the rough diamond into different pieces. This step, which can take up to eight hours, is followed by bruting that involves rotating one diamond against another that may also be rotating or may be stationary, resulting in the gemstone\u2019s basic shape. The final step is polishing, where the facets of the cut diamond are polished in a way that helps the gemstone reflect and refract the optimal amount of light.<\/p>\n\n\n\n So, what exactly makes a well-cut diamond seriously sparkle? Just ask anyone who saw the necklace Indian heiress and business magnate Isha Ambani wore to the 2025 Met Gala. Her 481.42-carat masterpiece, centred around a stunning 80.73-carat cushion-cut diamond, lit up the red carpet3<\/a><\/sup>. No filters or flash needed \u2014 it was all precision-cut brilliance.<\/p>\n\n\n The secret behind that kind of dazzle is geometry. Every facet and proportion is meticulously crafted to bounce light in all the right directions, creating fire and brilliance. Different types of diamond cuts play with light in their own ways, resulting in unique sparkles.<\/p>\n\n\n\n Faceting is the process of cutting tiny flat surfaces into a diamond. The placement, size and angles of these facets (or flat surfaces) allow light to enter the gem, bounce around and shoot off it.<\/p>\n\n\n\n There are many different types of facets and terms regarding a diamond\u2019s cut, which are useful to know when considering buying a diamond:<\/p>\n\n\n\n This refers to the large, flat top of a diamond. Size is important here \u2014 too big and light leaks out, but too small and the \u2018sparkle window\u2019 has been compromised.<\/p>\n\n\n\n This is the angle between the diamond\u2019s table and the sloping facets just below it (called the crown facets). This affects how light enters and leaves the diamond, playing a key role in its dazzle.<\/p>\n\n\n\n This is the lower half of the diamond. If it\u2019s too shallow or too deep, light escapes instead of returning to your eye, making the diamond look dull or dark.<\/p>\n\n\n\n A diamond\u2019s symmetry is how precisely its facets are aligned, shaped and positioned next to each other. Even slight imperfections in positioning can cause diamond brilliance to dim. That could be why some diamonds might look a little \u2018off\u2019.<\/p>\n\n\n\n Together, these elements help shape a diamond\u2019s \u2018light signature\u2019. Two diamonds with identical carat weight and clarity can look totally different under the spotlight thanks to their cut.<\/p>\n\n\n\n For instance, take two round brilliant diamonds: one with excellent symmetry will return light evenly across its surface, while one with poor symmetry may show dark patches, uneven sparkle or an off-centre pattern. Those tiny facet alignments make a visible difference, even to the naked eye.<\/p>\n\n\n\n In addition to the size of a diamond, we often prioritise its brilliance. It makes sense that the more ravishing the diamond, the more coveted it is, and so a diamond\u2019s brilliance can be directly tied to its monetary value. Which is why it\u2019s so important to focus on diamond cuts.<\/p>\n\n\n\n Polished diamonds larger than 0.3 carats in weight (also known as 30 points) come with a diamond grading report. This report documents key details about the gemstone \u2014 namely its origin and grading in reference to the 4Cs. While buying diamonds, never forget to enquire about reports by reputed certification bodies such as the IOD (De Beers Institute of Diamonds), IGI (International Gemological Institute) and GIA (Gemological Institute of America). All reputable jewellers will be able to offer those.<\/p>\n\n\n\n In terms of cut, the report will state a diamond\u2019s grade \u2014 Excellent, Very Good, Good, Fair or Poor \u2014 and often include a diagram depicting its exact proportions and measurements.<\/p>\n\n\n\n Diamonds with Excellent cut grades typically fetch higher prices4<\/a><\/sup>, because brilliance is seen to make a diamond more beautiful and desirable5<\/a><\/sup>. Cut quality is factored into resale and insurance assessments6<\/a><\/sup>.<\/p>\n\n\n\n However, not all diamonds are cut with the same artistry. In some commercial cutting operations, the priority is often the yield over beauty, and in an attempt to get maximum carats from a gem, cut quality can be compromised.<\/p>\n\n\n\n On the other hand, expertly cut natural diamonds serve as a reminder not just of the meticulous attention and precision that was required to perfect it but also of the decades-old craftsmanship heritage and artistry involved in the diamond cutting process. This adds an extra layer of emotional power to the diamond because after all, who doesn\u2019t love a great story?<\/p>\n\n\n\n You may see this drop first-hand: synthetic diamonds, like lab-grown ones (also called LGDs), may look OK under fluorescent store lights but fall flat in daylight. On the other hand, natural diamonds often receive more dedicated time, individual attention and care in the cutting process.<\/p>\n\n\n\n If sparkle is top of your wish-list when buying or researching diamonds, keep these pointers front of mind:<\/p>\n\n\n\n And does the diamond \u2018come alive\u2019 when you move it and hold it at different angles?<\/p>\n\n\n\n An Excellent (sometimes also called \u2018ideal\u2019) cut grade is a great sign.<\/p>\n\n\n\n Reputable sellers can provide brilliance or fire analysis, so don\u2019t be shy to ask.<\/p>\n\n\n\n If one diamond \u2018winks\u2019 at you more than the rest, it\u2019s most likely been cut with serious care. Examine it in natural daylight \u2014 how a diamond appears in the sharp light of the jewellers\u2019 could differ from how it responds to daylight.<\/p>\n\n\n\n Ask anyone who knows their gemstones \u2014 a diamond\u2019s true sparkle is down to the art of the cutter. From navigating that delicate balance of proportions to prioritising its brilliance wherever possible, craftsmanship is what transforms a natural gem, born deep within the Earth, into a ravishing treasure. Be sure to choose wisely when it\u2019s your turn to shop.<\/p>\n\n\n\n <\/p>\n\n\n\n The way natural diamonds are cut is what allows their brilliance to shine through<\/p>\n","protected":false},"author":8,"featured_media":758,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"[{\"content\":\"GIA, The Rise to Prominence of the Modern Diamond Cutting Industry in India\",\"id\":\"34bf485f-e061-4d17-bde7-0450a3aed2a2\"},{\"content\":\"Naturaldiamonds.com, Surat \u2013 an Agora of Diamonds\",\"id\":\"29dc9dc2-0166-4dfb-9686-c283983fe0c4\"},{\"content\":\"Naturaldiamonds.com, Isha Ambani just wore the most expensive red-carpet jewel of all time\",\"id\":\"9cba05ba-7bbe-404c-8fc5-ef90073c787d\"},{\"content\":\"The GIA, GIA diamond cut grade: six things you need to know\",\"id\":\"c44882bd-376a-4e77-a921-ca9972f1b530\"},{\"content\":\"Diamonds.pro, Diamond resale value\",\"id\":\"115ca135-4470-4f6f-bcf1-9a3302fe7f63\"},{\"content\":\"Diamonds.pro, Diamond ring appraisals: everything you need to know\",\"id\":\"afa6fa80-7414-494f-982b-41ec88cc4219\"}]"},"categories":[4],"tags":[],"class_list":["post-762","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-education"],"acf":[],"yoast_head":"\n![\"Close](\"https:\/\/adiamondisforever.com\/en-in\/wp-content\/uploads\/sites\/2\/2026\/02\/B2.4_How-diamond-cutting-is-key_Landscape-2048x1354-1-1024x677.jpg\")
<\/figure>\n\n\n\nWhy cut determines sparkle and value<\/h3>\n\n\n\n
How diamonds are cut \u2014 from rough to refined<\/h2>\n\n\n\n
The rough stone and initial planning<\/h3>\n\n\n\n
Making the most of diamond cutting machines<\/h3>\n\n\n\n
How diamond facets and proportions affect brilliance<\/h2>\n\n\n\n
![\"Isha](\"https:\/\/adiamondisforever.com\/en-in\/wp-content\/uploads\/sites\/2\/2026\/02\/Besties-3-1.jpg\")
Table<\/h3>\n\n\n\n
Crown angle<\/h3>\n\n\n\n
Pavilion depth<\/h3>\n\n\n\n
Symmetry<\/h3>\n\n\n\n
![\"Close](\"https:\/\/adiamondisforever.com\/en-in\/wp-content\/uploads\/sites\/2\/2026\/02\/DIamond-cut-1024x677.jpg\")
<\/figure>\n\n\n\nHow the quality of a diamond affects its value<\/h2>\n\n\n\n
The difference between commercially cut and expertly cut diamonds<\/h2>\n\n\n\n
Questions to ask when evaluating diamond cut quality<\/h2>\n\n\n\n
Is the diamond symmetrical?<\/h3>\n\n\n\n
Review the diamond\u2019s grading report<\/h3>\n\n\n\n
How well does it reflect light?<\/h3>\n\n\n\n
Let your eyes be the judge<\/h3>\n\n\n\n
Sources<\/h3>\n\n\n