A standard
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Brands · Record · Trust Index 2026-09

Chow Tai Fook

gdcs.ai / valuerules v4 · frozen
Shape
1.00 ct
Colour
Clarity
Cut
01 · The stone at market—
02 · Proof—
03 · GDCS value—

Lab-grown · loose · GIA or IGI graded · prices 2026-10-02 · index 2026-09 · sha 9e844fb0

Chow Tai Fook

Hong Kong

Diamond · Trust Index 2026-09

What you say, and who has checked it

  • Carbon & energyChecked by someone independent
  • Water & chemicalsChecked by someone independent
  • People & labourChecked by someone independent
  • Where it comes fromYour own report
  • Reuse & recyclingYour own report
  • Certificates & reportsChecked by someone independent
  • NatureNothing found
Checked by someone independentYour own reportNothing found

What this record supports today

LendersA lender can use this record when setting targets on a sustainability-linked loan.
RetailersA retailer can point to this record when it needs evidence behind a sustainability edit.

Money that moves with your targets

25,000 – 250,000a year, per 100 million borrowed

We found no borrowing tied to sustainability targets in your public documents. This is the rate the market uses when a loan or bond is tied to them.

On a diamond

+ 6.79%on a lab-grown diamond

What your checked facts add to a stone's market price. Buyers say they would pay 9.7% more for goods made sustainably. You get the share of it that someone independent has checked.

See how it is calculated
01  areas     4 of 7 checked by someone independent
02  share     0.70 of the record, at the index's own weights [30, 15, 15, 15, 10, 10, 5]
03  product   a product fact is independently confirmed
04  premium   9.7% (PwC 2024) x 0.70 = +6.79%

The rule and its sources

Every line comes from a public document, archived with its date. We do not grade stones, and we do not tell you what to do.Every claim and its source

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