# Gold Purity Weight Converter

> Gold Purity Weight Converter (iPhone/iPad app by SBGems.)

- Source: https://appshunter.io/ios/app/gold-purity-weight-converter/id6799598807 (this page in markdown: same URL + `.md`)
- Developer: [SBGems](https://appshunter.io/developer/1162486078)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 38 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), Thai, Chinese (Traditional, Taiwan), Vietnamese
- Released: 2026-09-17
- Data updated: 2026-10-11

## What is Gold Purity Weight Converter?

A bench reference for jewelers and goldsmiths: estimate gold weight across supported karats and explore diamond and coloured-stone reference information.

Enter a piece’s current karat and weight, choose the target karat, and set a manufacturing loss percentage. The app shows an estimated converted weight for approximate planning guidance; actual finished weight may vary.

GOLD CONVERSION
• Supported karats: 24K, 22K, 18K, 16K, 14K, 12K, 10K, 9K and 8K
• Compare estimated weights across supported karats
• Apply your own manufacturing loss percentage or a saved manufacturer’s usual figure
• Yellow, rose and white gold, with nickel- and palladium-alloyed white gold treated separately
• Adjust reference densities in Settings to reflect your supplier’s figures
• Save pieces by ID and reopen them when signed in
• Use the calculator without creating an account

DIAMOND SIZE AND SIEVE REFERENCES
• Convert millimetres to estimated carat weight, and back, for ten diamond shapes
• Look up approximate sieve reference diameters for round stones
• Carat describes weight, not size: these estimates are for guidance, and only weighing a stone establishes its carat weight

GEM REFERENCE
• Diamond, emerald, ruby and sapphire: colour, clarity, inclusions, treatments and origin
• Diamond colour illustrations for the near-colourless range and fancy colours
• Bench warnings for treated stones, including fracture-filled diamonds, lead-glass-filled rubies, oiled emeralds and diffused sapphires

REFERENCE LIMITS
Calculated weights, size and sieve references, and colour illustrations are approximate guidance. The app does not measure, weigh, grade or identify stones, and it does not replace a laboratory report or a supplier’s own figures.

Colour illustrations are educational and vary by screen. They cannot be used to match or grade a real stone. The gem reference is not affiliated with or endorsed by any gemological laboratory.

SEVEN LANGUAGES
English, Traditional Chinese, Simplified Chinese, Thai, Vietnamese, Japanese and Korean.

A practical reference for everyday work at the jewelry bench.

## Is Gold Purity Weight Converter safe?

Not enough ratings yet to assess Gold Purity Weight Converter.

## Is Gold Purity Weight Converter legit?

Gold Purity Weight Converter appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Gold Purity Weight Converter is 68 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.2.0 — 2026-10-01

Version 1.2.0 adds more reference tools for the jewelry bench:

• Gem guides for diamonds, emeralds, rubies and sapphires, including treatments and bench warnings
• Diamond size-to-estimated-weight references for ten shapes
• A sieve-size reference for round diamonds
• Near-colourless and fancy diamond colour illustrations
• Seven languages: English, Traditional Chinese, Simplified Chinese, Thai, Vietnamese, Japanese and Korean
• Account controls inside Settings
• Password recovery using an emailed code or reset link
• Improved spacing around the status bar, including Saved Jewelry
• Clearer notices explaining that converted weights, size and sieve references, and colour illustrations are approximate guidance

### 1.0 — 2026-09-17

No release notes.

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## More apps by SBGems

- [SBGems](https://appshunter.io/ios/app/sbgems/id1162486079)

All apps by SBGems: https://appshunter.io/developer/1162486078

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-11.*