LOOK CLOSER. CHOOSE CLEARER.
See what the grades mean.
Change a characteristic. Explore its visual effect.
Excellent cut · None fluorescence
A diagram of concepts, not a prediction of a diamond. Colour, marks and alignment are exaggerated. Actual diamonds with the same grades can look different.
What to notice
Look at the outline, warmth and light-and-dark pattern. Subtle clarity and polish differences may not be visible in everyday viewing. Use Inspection to explore those concepts.
Shape
The outline and facet style. Shape is different from cut quality.
Colour
D is colourless; warmth increases towards Z. Tints are exaggerated to explain the scale. Real face-up colour depends on shape, lighting and the individual stone.
Higher colour grades usually carry a rarity premium, even when the difference is hard to see.Clarity
Switch to Inspection to see example internal marks. Grades depend on their size, nature, position, number and visibility at 10×—not a fixed number of dots.
Paying for a higher clarity grade may buy rarity without a visible everyday improvement.Cut
The light-and-dark pattern illustrates light return. It is not an optical simulation. Diamonds with the same cut grade can look different.
Better light performance can be worth prioritising; the grade alone does not describe every stone.Fluorescence
Switch to UV to see an example blue response. Blue is common, but other colours occur. Strength describes a response to UV, not everyday brightness or cloudiness.
Its price effect depends on the stone and market. Fluorescence is not automatically a visual disadvantage.Polish
Inspection shows example surface lines, deliberately enlarged. These represent finish characteristics, not a promise of visible scratches at a given grade.
Top finish grades can add a premium; small differences may require magnification to detect.Symmetry
Facet alignment shifts in this diagram to explain the concept. This is exaggerated, not a measured representation of the selected grade.
Symmetry can affect pattern and price, but it is only one part of evaluating appearance.Carat
1.00 ct referenceCarat measures weight, not diameter. The illustration stays the same display size so you can focus on quality. It is not shown at life size, and shape changes do not represent equal-weight dimensions.
From an illustration to an informed choice.
Use this guide to understand the vocabulary. For a real stone, compare its grading report, neutral-light video and inspection findings. These controls combine educational effects; they do not validate a possible laboratory grade combination or estimate a price.
Explore the sample diamonds