About — The Field Notes

The lab journal,
made public.

We document the growth conditions, spectral fingerprints, and crystal lattice data for every diamond we sell. Then we publish it.

The Premise

Every diamond is grown
under specific conditions.
We publish this data.

Temperature. Pressure. Seed crystal. Gas composition. Growth duration. These are the variables that determine a diamond's character. Most producers keep this information private.

We don't. The Field Notes was founded on the premise that transparency is not a marketing position — it is how you think about diamonds when you respect the science.

Each diamond ships with a printed data sheet. The spectral ID. The reactor conditions. The seed crystal type. The story of its formation, in numbers. Because we believe the data is as beautiful as the diamond.

Field Notes data sheet
FIELD NOTES — DATA SHEET
Stone ID: FN-7A-0012
Process: CVD
Seed: Type IIa natural
Temperature: 900°C
Pressure: 25 Torr
Gas mix: CH₄ 4% / H₂ 96%
Duration: 21 days
Rough yield: 1.48ct
Cut yield: 1.02ct
Shape: Round Brilliant
Colour: F
Clarity: VS1
Cut: Excellent
Spectral ID: 7A12-IRSP-2025
IGI cert: 561847293
Philosophy

We believe the data is as beautiful
as the diamond.

Precision is not the opposite of wonder. It is the source of it. When you know exactly how something came to be — the temperature, the pressure, the chemistry — it becomes more remarkable, not less.

Documented

Every stone ships with a printed data sheet covering its growth conditions and spectral analysis.

Certified

Every stone graded by GIA, IGI, or HRD. Certificate number published on the product page.

Scientific Milestones

Seventy years of engineering.

1954

GE scientists produce the first lab-grown diamonds using HPHT. They are not gem quality.

1970

GE produces the first gem-quality lab-grown diamond. It is yellow, because of nitrogen impurities.

1987

CVD (Chemical Vapour Deposition) is refined. Carbon atoms fall from a plasma cloud onto a seed crystal.

2012

The first colourless, gem-quality CVD diamonds reach the certified market. IGI grades them.

2018

FTC rules that lab-grown diamonds are real diamonds. The word "synthetic" is retired.

2025

The Field Notes publishes its first lab journal. Every stone gets a data sheet.

The collection is open.

Every diamond documented. Every dataset published.

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