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The Diamond Buying Guide
Choosing a diamond is more than selecting a beautiful gemstone—it’s about understanding the qualities that create exceptional brilliance, lasting value, and timeless elegance. Explore our expert guide to learn what truly matters before making your investment.
Explore Diamond ShapesConfidence Begins with Knowledge
Every diamond tells a unique story shaped by nature over billions of years. While two diamonds may appear similar at first glance, subtle differences in cut, clarity, colour and carat weight significantly influence their beauty and value. Understanding these characteristics empowers you to compare diamonds confidently and select the one that perfectly reflects your style, occasion and expectations.
At Pleasure Diamonds, we believe an informed client always makes the best decision. This guide has been thoughtfully created by our diamond specialists to simplify the diamond selection process while providing clear, transparent information you can trust.
4Cs
Understand the essential characteristics that determine every diamond’s beauty and value.
Certified
Learn how internationally recognised grading reports help verify authenticity and quality.
Expert Guidance
Gain practical insights that help you choose confidently and purchase with complete peace of mind.
Discover Your Perfect Diamond Shape
A diamond’s shape defines its personality. From timeless classics to contemporary silhouettes, each cut offers its own balance of brilliance, elegance and character. Whether you’re designing an engagement ring or selecting a timeless jewellery piece, choosing the right shape is the first step toward creating something truly personal.
Explore Every Shape
Each diamond shape offers a distinctive appearance and reflects a different style. While the Round Brilliant is renowned for exceptional sparkle, shapes such as Oval, Cushion, Emerald and Pear each bring their own elegance and visual appeal.
Our comprehensive guide explains the proportions, brilliance, visual characteristics and styling considerations of every major diamond shape, helping you discover the perfect match for your taste and lifestyle.
✓
Understand Each Shape
Learn how different shapes influence brilliance, proportions and overall appearance.
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Compare Popular Styles
Explore the differences between Round, Oval, Cushion, Emerald, Princess, Pear, Radiant and more.
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Choose with Confidence
Find the shape that best complements your personal style, setting and jewellery design.
The First & Most Important C
Diamond Cut
Among the Four Cs, cut has the greatest influence on a diamond’s beauty. While colour, clarity and carat describe the diamond itself, the cut determines how efficiently light travels through the stone and returns to your eye.
A masterfully cut diamond reflects light with exceptional brilliance, vibrant fire and captivating sparkle. Even a diamond with excellent colour and clarity can appear lifeless if its proportions are not precisely balanced.
Professional grading laboratories evaluate cut by analysing proportions, symmetry and polish. Higher cut grades produce superior light performance and create the dazzling appearance most people associate with a truly exceptional diamond.
01
Brilliance
Determines how much white light is reflected back through the top of the diamond.
02
Fire
Creates beautiful flashes of rainbow colours when light disperses through the diamond.
03
Scintillation
The lively sparkle created as the diamond moves under changing light.
Expert Recommendation
When comparing diamonds of similar quality, prioritising an Excellent or Ideal Cut often provides the most noticeable improvement in beauty and overall visual performance.
Natural Characteristics
Diamond Clarity
Every natural diamond is a remarkable creation formed deep within the Earth over billions of years. During this natural process, tiny internal and external characteristics develop, making each diamond completely unique. These natural features are what clarity grading evaluates.
Clarity measures the visibility, size, location and number of these characteristics. While higher clarity grades are rarer, many inclusions are microscopic and cannot be seen without magnification, allowing buyers to achieve exceptional beauty while maintaining excellent value.
Rather than simply pursuing the highest clarity grade, experienced buyers often look for diamonds that appear perfectly clean to the naked eye while offering outstanding brilliance and value.
FL
Flawless to VVS
Extremely rare diamonds with virtually no visible internal characteristics even under high magnification.
VS
Excellent Balance
A popular choice offering outstanding appearance with characteristics that are difficult to detect.
SI
Exceptional Value
Many SI diamonds appear eye-clean while providing impressive value for discerning buyers.
Diamond Expert Tip
Instead of focusing solely on the highest clarity grade, choose a diamond that appears eye-clean. This often provides the ideal combination of beauty, rarity and value.
Purity of Appearance
Diamond Colour
The finest white diamonds are prized for what they don’t have—visible colour. As colour becomes less noticeable, more light passes naturally through the diamond, creating a brighter, cleaner and more brilliant appearance.
International laboratories such as GIA grade white diamonds on a scale from D (colourless) to Z (light colour). While the differences between neighbouring grades are often subtle, they can significantly influence both rarity and value.
Choosing the ideal colour isn’t always about selecting the highest grade. The right balance depends on the diamond shape, carat weight, metal choice and your personal preferences.
D-F
Colourless
The rarest white diamonds with exceptional brightness and maximum brilliance.
G-J
Near Colourless
An excellent balance of beauty and value. These diamonds appear beautifully white in most jewellery settings.
K-Z
Noticeable Colour
Increasing warmth becomes visible and may complement certain vintage or yellow gold designs.
Expert Recommendation
For most buyers, diamonds in the G–H colour range offer an outstanding combination of brightness, beauty and long-term value, particularly when paired with an Excellent Cut.
Size Meets Value
Diamond Carat
Carat refers to a diamond’s weight rather than its physical dimensions. Although larger diamonds are naturally rarer, size alone does not determine beauty. The most captivating diamonds combine excellent proportions, outstanding cut and balanced quality across all Four Cs.
Two diamonds with identical carat weights can appear noticeably different depending on their cut quality and proportions. A beautifully cut diamond often looks larger, brighter and more brilliant than a heavier stone with poor proportions.
Choosing the ideal carat weight is about finding the perfect balance between visual presence, quality and budget. Understanding how all Four Cs work together allows you to maximise both beauty and value.
①
Weight, Not Size
Carat measures a diamond’s weight. Visual size depends on the proportions and cut.
②
Better Balance
A slightly smaller diamond with superior cut often delivers greater brilliance than a larger stone of lower quality.
③
Choose Smartly
Finding the right balance between cut, colour, clarity and carat ensures lasting beauty and exceptional value.
Expert Recommendation
Rather than focusing solely on carat weight, prioritise exceptional cut quality. It is the single most influential factor in creating a diamond that appears vibrant, brilliant and visually impressive.
