Know your diamonds
Diamond education
Our diamonds
At Glasaje, every diamond we use is lab-grown, ethically sourced, and GIA certified. Here is everything you need to know about lab-grown diamonds, simply and clearly.
The 4Cs explained
Cut
Brilliance
Excellent
How facets interact with light. The most important C for sparkle.
Colour
Whiteness
D to F range
Near-colourless to colourless. Clean, modern, brilliant.
Clarity
Purity
VS grade
Very Slightly Included. Inclusions invisible to the naked eye.
Carat
Weight
Intentional
Carefully selected to complement each design. Never excessive.

01
Cut
Cut: the most important C
The cut of a diamond refers to how its facets are shaped and proportioned to interact with light. A well-cut diamond reflects light beautifully, creating the brilliance and sparkle diamonds are known for.
Cut is graded from Excellent to Poor. At Glasaje, we use only well-cut diamonds that maximise brilliance without compromising on ethical standards.
Think of cut as the craftsmanship of the diamond. It is what makes it come alive.
02
Colour
Colour: less colour, more light
Diamond colour is graded on a scale from D (completely colourless) to Z (visibly warm or yellow). The closer to D, the rarer the stone. Colourless diamonds allow the most light to pass through, creating a brighter, more brilliant appearance.
Our lab-grown diamonds sit in the D to F range, near-colourless to colourless, giving each piece a clean, modern finish that complements our minimal designs.
D to F. The clearest range, for the brightest result.


03
Clarity
Clarity: naturally unique, visually perfect
Clarity refers to the natural characteristics, called inclusions, found within a diamond. These tiny marks form during the diamond's creation and are unique to every stone, much like a fingerprint.
Clarity is graded from Flawless (FL) to Included (I). All Glasaje lab-grown diamonds carry a VS (Very Slightly Included) clarity grade, meaning any inclusions are microscopic and invisible to the naked eye.
VS clarity. Visually perfect, every time.

04
Why lab-grown
Real diamonds, made responsibly
Lab-grown diamonds are real diamonds in every sense. They share the same physical, chemical, and optical properties as mined diamonds, including the same hardness of 10 on the Mohs scale. The only difference is where they come from.
Created in controlled environments using advanced technology, lab-grown diamonds eliminate the environmental damage and ethical concerns associated with traditional diamond mining. No displaced communities. No habitat destruction. No conflict.
For us, choosing lab-grown diamonds was the only decision that aligned with our values.
Lab-grown vs mined diamonds
| Lab-grown | Mined | |
|---|---|---|
| Composition | Pure crystallised carbon | Pure crystallised carbon |
| Hardness (Mohs) | 10 - the hardest material | 10 - identical |
| GIA certified | Yes, same 4Cs scale | Yes |
| Passes diamond tester | Yes | Yes |
| Environmental cost | Significantly lower | High - land and habitat impact |
| Conflict risk | None - fully traceable | Varies by source |
| Price | 30 to 50% less | Higher |
Common questions
Lab-grown diamonds: FAQs
Every Glasaje diamond is chosen with care, certified independently, and set in solid 9ct gold, made to order in Melbourne.
