Diamond Guide
Lab-grown diamonds, the 4Cs, cuts and settings.
Why We Choose Lab-Grown.
For diamonds, we set lab-grown. We can also reset stones you already own.
Choose your lab-grown diamondA Diamond, Grown in a Lab
Essentially the same chemistry, crystal structure and hardness as a mined diamond.
Grown, Not Mined
Created in a laboratory, not mined.
Described by the 4Cs
Cut, color, clarity and carat.
Diamonds
The Essentials, Simply Put.
The 4Cs, shapes and settings: what each choice means for your piece.
Cut
How well the facets return light. The one C shaped by the cutter.
- Excellent
- Most light returned
- Very Good
- Nearly as bright
- Good
- Some light lost
- Fair
- Noticeably less bright
- Poor
- Dull, with light lost
Color
Graded from D to Z. D–F is the colorless range.
- D–F
- Colorless
- G–J
- Near colorless
- K–M
- Faint
- N–R
- Very light
- S–Z
- Light
Clarity
Measures inclusions and blemishes. Lab-grown does not mean flawless.
- FL
- Flawless
- IF
- Internally flawless
- VVS1–2
- Very, very slightly included
- VS1–2
- Very slightly included
- SI1–2
- Slightly included
- I1–3
- Included
Carat
Weight, not size: one carat is 0.2 g. Cut decides how large it looks.
- 0.25 ct
- About 4.1 mm across, if round
- 0.50 ct
- About 5.2 mm across, if round
- 1.00 ct
- About 6.5 mm across, if round
- 1.50 ct
- About 7.4 mm across, if round
- 2.00 ct
- About 8.2 mm across, if round
- 3.00 ct
- About 9.4 mm across, if round
A grading report describes the stone. An appraisal for insurance is a separate document.
Let's Create Something Only Yours.
Tell us the idea. We'll design the piece around it.