Diamond Education
Diamond Education
Everything you need to choose a lab grown diamond with confidence — from the 4Cs to certification, anatomy and how they are made.
Cut
The most important C — cut determines how a diamond reflects light and sparkles. A well-cut stone dazzles even at a lower colour or clarity grade.
Color
Graded from D (colourless) to Z (light yellow). The less colour a diamond shows, the brighter and icier it appears.
Clarity
Measures tiny internal marks called inclusions. The fewer and smaller they are, the higher the grade — and most are invisible to the naked eye.
Carat
The diamond's weight — not its size. Two stones of equal carat can look very different depending on cut and shape.
What RINOVA Uses
Every centre stone we set is Excellent cut, E–F colour and VVS clarity, certified by IGI. We do not offer lower grades. It keeps the choice simple, and it means the stone in the photograph is the stone that arrives.
HPHT
High Pressure, High Temperature recreates the conditions found deep in the earth — roughly 1,500°C under immense pressure. A tiny diamond seed grows into a full crystal.
CVD
Chemical Vapour Deposition grows the crystal layer by layer from carbon-rich gas in a vacuum chamber. It allows exceptional control over purity and colour.
Weeks, Not Aeons
What takes the earth a billion years takes a few weeks in a laboratory. The finished crystal is then cut and polished by hand, exactly like any other diamond.
- Graded by IGI — the International Gemological Institute, the world's leading authority on lab grown diamond grading. We never grade our own stones.
- Origin stated clearly — the report confirms the stone is laboratory grown. Honest paperwork is the whole point.
- Verify it yourself — every IGI report carries a number you can check directly on igi.org.
- Every centre stone — no exceptions, on every piece we make.
- Table — the flat top facet; its size affects how light enters and returns.
- Crown — the upper section above the girdle, where much of the sparkle is created.
- Girdle — the thin band around the widest point, where the stone is set.
- Pavilion — the lower section that reflects light back up through the crown.
- Culet — the tiny point at the very bottom of the diamond.
- Depth — the height from table to culet; correct depth gives the best light performance.
Set a Budget
Decide what you're comfortable spending. With the grade fixed at Excellent, E–F, VVS, the only lever left is carat weight — which keeps the decision simple.
Pick a Shape
Choose a shape that suits the wearer's hand and style, from timeless round to elongating oval. See the shapes guide
Choose the Carat Weight
Carat is weight, not width. A 1 ct round measures about 6.5 mm across; 2 ct is about 8.1 mm. The jump in price is steeper than the jump in size.
Match the Metal
10K is hardest, 18K has the richest colour, platinum holds stones most securely. Compare the metals
Check the IGI Report
It ships with your piece. Read it, and verify the number on igi.org.
Are lab grown diamonds real diamonds?
Yes. Identical chemical, physical and optical properties to a mined diamond — pure crystallised carbon, 10 on the Mohs scale. The difference is origin, not substance.
Do you sell loose diamonds?
No. We set every stone ourselves, so each piece leaves our atelier finished and checked. If you want a specific stone for a custom design, talk to us and we will source it.
Do you sell mined diamonds?
No. RINOVA works exclusively with IGI certified lab grown diamonds.
Which C is the most important?
Cut, without question. It has more effect on how a diamond looks than colour or clarity, and it is the one thing that cannot be fixed later. Every stone we set is Excellent cut.
Why not offer lower grades to save money?
We could, and many sellers do. But VVS and E–F cost us less in a lab grown stone than they would mined, so we pass that on rather than dropping the quality. One grade, one decision less to worry about.
Can anyone tell it is lab grown?
Not by eye, and not with a jeweller's loupe. It takes specialised laboratory equipment — which is precisely why the IGI report states the origin.
How do I read an IGI report?
It lists the 4Cs plus measurements, proportions and the report number. Send us any report and we will walk you through it, line by line.
Ready to Explore?
Duties Included
Free insured shipping, nothing to pay on arrival
IGI Certified
Independent report with every centre stone
30-Day Returns
Change your mind, send it back
Elegant Packaging
Gift-ready in a lined presentation box