Diamond colour and clarity are two of the 4 Cs, and they are where many buyers either overspend or worry unnecessarily. I'm Antonio, and in this guide I explain the grading scales in plain English, what "eye-clean" means, and where I would be careful with your budget.
What is diamond colour?
For white diamonds, colour grading measures how colourless a stone is. The GIA scale runs from D (colourless) to Z (light yellow or brown tint). Most of the stones used in jewellery sit between D and about K.
| Grade | Category | What to expect |
|---|---|---|
| D, E, F | Colourless | Very white; differences between them are very subtle |
| G, H, I, J | Near colourless | Looks white face-up in most settings |
| K, L, M | Faint | A slight warm tint, more visible in white metal |
| N to Z | Very light to light | Visible tint |
Colour differences between neighbouring grades are very small, and often only a trained eye comparing loose stones side by side can see them. Once a diamond is set in a ring, the metal and the surrounding stones also influence how white it looks. Yellow or rose gold can make a slightly warmer stone look natural, while white gold or platinum shows colour more.
What is diamond clarity?
Clarity describes the tiny internal features (inclusions) and surface marks (blemishes) of a diamond. The GIA scale has these main grades:
- FL (Flawless) and IF (Internally Flawless): no inclusions visible under 10x magnification (FL also has no blemishes). Very rare.
- VVS1 and VVS2 (Very, Very Slightly Included): inclusions very hard to see under 10x.
- VS1 and VS2 (Very Slightly Included): minor inclusions, usually not visible to the naked eye.
- SI1 and SI2 (Slightly Included): inclusions noticeable under 10x, and sometimes visible to the eye.
- I1, I2 and I3 (Included): inclusions that are usually visible and may affect durability or brilliance.
Grades are assigned under 10x magnification, but you will be looking at the ring with your eyes, which is where the idea of "eye-clean" comes in.
What does eye-clean mean?
An eye-clean diamond has no inclusions visible to the naked eye at a normal viewing distance. Many diamonds in the VS and some in the SI range can be eye-clean, but it depends on the type, size and position of the inclusion, and on the shape of the stone. Step cuts such as emerald and Asscher show inclusions more easily because of their large, open facets, so they usually call for higher clarity. Brilliant cuts such as round are more forgiving.
Where to save and where to spend
- Don't overspend on top clarity. Paying extra for IF or VVS over a clean VS is, for most people, paying for a difference only a loupe can see.
- Don't overspend on top colour. A G to H stone usually looks white in a ring, and a good value for many buyers.
- Don't skimp on cut. Cut drives sparkle, which is what you actually notice. Our 4 Cs guide explains why.
- Look at the stone, not only the paper. Two diamonds with the same grades can look different, so ask for photos or videos.
Colour and clarity by shape and setting
The setting changes what you should prioritise. A white metal ring, such as in our solitaire rings, shows colour more, so you may want to stay in the colourless to near-colourless range. A halo or pavé design, like our halo rings, can distract from small inclusions. For emerald and Asscher shapes, prioritise clarity.
Natural vs lab-grown
Natural and lab-grown diamonds are graded on the same scales. The grades describe the stone, not its origin, so the same letters and codes apply. For the price and value differences, read lab-grown vs natural diamonds. If size is your priority, our guide on carat size will help.
My advice: aim for an eye-clean diamond in the near-colourless range, and put the rest of your budget into cut and size. Ask for the certificate (GIA, IGI or HRD) and compare the stones with your own eyes, rather than paying for a letter you cannot see.
Find your diamond at Antonio Amberes
Browse our solitaire rings, pavé rings and eternity bands, and ask us about the certificate (GIA, IGI or HRD) for the exact colour and clarity of each stone. If you have a budget in mind, I'm happy to suggest which grades make sense.
FAQ
What is the best diamond colour grade to buy?
There is no single best grade. Many buyers choose G to H for a good balance between whiteness and value, but it depends on the metal, the shape and your taste.
Is VS clarity good enough?
VS1 and VS2 diamonds are generally not visibly included to the naked eye, so they are a popular choice. Always check the individual stone.
What does eye-clean mean?
It means you cannot see inclusions without magnification at a normal viewing distance.
Are colour and clarity grades the same for lab-grown diamonds?
Yes, the same GIA-style scales are used to describe both natural and lab-grown diamonds.
Which matters more, colour or clarity?
Neither matters as much as cut for sparkle. Between the two, choose based on shape and metal: clarity for step cuts, colour for white metal settings.
Need help comparing two stones? Message me on WhatsApp.