Choosing a diamond becomes much easier when you know what to compare. This guide explains the essentials of lab-grown diamonds, the 4Cs, diamond shapes, certification and settings so you can make a more informed jewellery choice.
What Is a Lab-Grown Diamond?
A lab-grown diamond is created in a controlled environment rather than mined from the earth. Laboratory-grown diamonds have essentially the same optical, physical and chemical properties as mined diamonds, while their origin should be clearly disclosed. At Luscious Diamonds, our diamonds are lab-grown unless stated otherwise.
Understanding the 4Cs of Diamonds
The 4Cs—cut, colour, clarity and carat weight—provide a practical framework for comparing diamonds. The best combination depends on what matters most to you: brilliance, size, visual purity, design or budget.
Cut
Cut describes how effectively a diamond’s proportions, symmetry and finish work together to return light. It has a major influence on brilliance and sparkle. A beautifully cut diamond can appear lively and bright even before you consider the other quality factors.
Colour
For colourless-to-near-colourless diamonds, colour grading considers how much visible body colour is present. The appearance can also be influenced by diamond shape, size and the colour of the metal surrounding it.
Clarity
Clarity evaluates internal characteristics, called inclusions, and surface characteristics, called blemishes. Many characteristics are difficult to see without magnification, so the clarity grade should be considered together with the diamond’s actual appearance.
Carat Weight
Carat is a measure of diamond weight, not a direct measurement of visible size. Two diamonds with the same carat weight can look different face-up because of their shape and proportions. When comparing diamonds, consider measurements as well as carat weight.
Choosing a Diamond Shape
Shape is one of the most personal parts of a diamond. Round diamonds are known for classic brilliance, while oval, pear and marquise shapes create an elongated look. Emerald and Asscher cuts emphasize clean lines and step-cut reflections, while princess, cushion, radiant and heart shapes each create a distinctive character.
Explore how different shapes look in our diamond rings, diamond earrings, diamond pendants, diamond bracelets and diamond necklaces.
Why Diamond Certification Matters
An independent diamond report helps document a stone’s identity and quality characteristics. Depending on the grading laboratory and report type, it can include information such as measurements, carat weight, colour, clarity, proportions and identifying details. Because laboratories and report formats can differ, compare the actual report information rather than relying on a single grade in isolation.
When a report number is provided, verify it directly with the issuing laboratory whenever possible. This adds another layer of transparency when comparing diamonds online.
Match the Diamond to the Setting
The setting changes both the appearance and everyday practicality of a piece. Prong settings expose more of the diamond to light, bezel settings create a clean framed look, halos add surrounding sparkle, and pavé settings introduce smaller diamonds along the design. For rings, details such as band width, profile and metal choice also affect the final balance on the hand.
How to Compare Lab-Grown Diamonds Online
- Start with the diamond shape and overall design you genuinely prefer.
- Compare cut or proportions, colour, clarity and carat weight together rather than focusing on one grade.
- Review the diamond’s measurements and certification details.
- Consider how the metal colour and setting will influence the finished appearance.
- Compare the complete jewellery specification, not only the centre diamond.
- Read the retailer’s shipping, customization and sales policies before ordering.
Choosing with Confidence
There is no single combination of diamond grades that is right for everyone. The goal is to find the balance of brilliance, proportions, design and value that suits your preferences. Luscious Diamonds creates made-to-order lab-grown diamond jewellery with transparent product details so you can compare your options more clearly before making your selection.
For additional information about ordering, customization, shipping and product details, visit our Help Center.