The Diamond Guide
Discover the essentials of diamond quality, craftsmanship and certification with guidance from experienced jewellers trusted for generations.
THE 4Cs
CUT
The cut is one of the most important factors in a diamond’s beauty and brilliance. It determines how light enters and reflects within the stone, creating sparkle, fire and overall brightness. Even a high-quality diamond can appear dull if it is poorly cut, while an expertly cut diamond will maximise its brilliance and visual impact.
THE 4Cs
Carat
Carat describes the weight of a diamond, rather than simply its visible size. Larger carat weights are generally rarer, but a diamond’s beauty also depends on factors such as cut, proportions and overall balance. Two diamonds of the same carat weight may appear different in size depending on their shape and cut style.
THE 4Cs
COLOR
Diamond color is graded from colorless to warmer tones. The less color present in a white diamond, the rarer and more valuable it generally becomes. Subtle differences in color can influence the overall appearance of the stone, especially depending on the setting and metal chosen for the ring or jewellery piece.
THE 4Cs
CLARITY
Clarity refers to the natural characteristics formed within the diamond during its creation deep within the earth. These internal or external features are commonly known as inclusions and blemishes. Most are invisible to the naked eye, and many diamonds with minor inclusions still appear perfectly brilliant while offering excellent value.
The Shape of a Diamond
Each diamond shape has its own character, proportions and way of reflecting light. From timeless round brilliant cuts to elegant oval and emerald shapes, selecting the right diamond is both a personal and aesthetic choice.
Understanding the differences between shapes can help you find a diamond that best reflects your style and preferences.
FIND YOURS
- Emerald cut
- Round Brilliant Cut
- Cushion Cut
- Pear Cut
- Radiant Cut
- Oval Cut
- Asscher Cut
- Heart Shape
- Marquise Cute
- Baguette Cut
- Trilliant Cut
- Princess Cut
Diamond Certification
At Antoine Debono Jewellers, selected diamonds are accompanied by internationally recognised certifications such as GIA or IGI, providing confidence in quality and authenticity.
Book a Diamond Consultation
Visit our Valletta boutiques or House of Gems workshop in Ta’ Qali for personalised guidance on diamonds, engagement rings and bespoke jewellery design.