theluckystrike

What the karat column actually records

This is a reference extract from gold-melt-values-by-karat.csv, a 5-row dataset with the columns karat, slug, purity, per_gram_usd, per_pennyweight_usd, per_ounce_usd. The figures below are copied directly from the file; nothing here is estimated or interpolated.

Provenance recorded in the dataset: Gold melt-value reference by karat. VERIFIED 2026-07-31 by recomputation, not by citation. What was checked: - purity is standard karat fineness (karat/24). 24K carried as 0.999 (999 fine)

karat: 24 | slug: 24k | purity: 0.999 | per_gram_usd: 107.6

karat: 22 | slug: 22k | purity: 0.9167 | per_gram_usd: 98.73

karat: 18 | slug: 18k | purity: 0.75 | per_gram_usd: 80.78

karat: 14 | slug: 14k | purity: 0.585 | per_gram_usd: 63.01

karat: 10 | slug: 10k | purity: 0.4167 | per_gram_usd: 44.88

The full table, with the remaining 0 rows and an interactive calculator built on it, is at the goldgramprice reference table