Comparison

Gold Purity Identifier vs Diamond Grader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Gold Purity Identifier

Features
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Instantly identify gold hallmarks and purity marks with AI-powered analysis. Whether you're a collector, jeweler, or simply curious about your gold jewelry, Gold Purity Identifier is your expert companion. SCAN & IDENTIFY GOLD HALLMARKS Simply photograph any gold hallmark or purity mark and get instant identification. Our AI technology recognizes hallmarks from major gold-producing countries including: • British gold hallmarks (crown, lion passant, date letters) • French gold marks (eagle head, owl, horse head) • Italian gold marks (star with province number) • Russian gold hallmarks (kokoshnik marks) • German gold hallmarks (crescent moon & crown) • American gold stamps & karat marks • And many more international gold marks GOLD PRICE CALCULATOR Calculate the melt value of your gold items based on: • Current live gold spot price • Gold karat & purity (24K, 22K, 18K, 14K, 10K, 9K) • Weight in grams, troy ounces or pennyweight Know exactly what your gold is worth today. SPOT FAKE & PLATED GOLD Worried about authenticity? Our 10-point fake detection checklist helps you: • Verify hallmark & stamp authenticity • Spot common counterfeits • Check for gold plating vs solid gold • Test magnet, weight & skin reactions • Identify reproduction marks 7 EXPERT GOLD TOOLS • Hallmark Scanner - AI-powered identification • Gold Calculator - Real-time melt value estimation • Fake Detection - 10-point authentication checklist • Karat Guide - Understand gold purity standards • Testing Methods - 7 professional gold tests explained • Gold vs Plated - Identify solid, filled & plated gold • Care Guide - Safe cleaning & preservation tips PERFECT FOR: • Gold jewelry collectors & enthusiasts • Antique dealers & estate buyers • Jewelers & pawnbrokers • Inherited jewelry owners • Auction buyers & sellers • Anyone curious about gold hallmarks Whether you've found gold at an estate sale, inherited family jewelry, or want to verify a gold purchase, Gold Purity Identifier gives you expert-level knowledge in seconds. Privacy Policy: https://eternalbeam.dev/identifiers/privacy-policy Terms of Service: https://eternalbeam.dev/identifiers/terms

About

Diamond Grader

Features
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Know what you're looking at. Diamond Grader turns the camera in your pocket into a jeweller's loupe. Photograph a diamond and advanced AI vision examines what your images genuinely show — then tells you, plainly, what they cannot. THE CAPTURE STUDIO A guided camera built for stones. Frame the diamond inside the loupe and get live coaching on light, focus, reflections and framing. The face-up shot is the only one needed. Crown, profile, detail, certificate and UV are optional, and each one raises confidence. YOUR ASSESSMENT • The 4Cs — apparent colour range, clarity range, cut characteristics and carat • Ranges rather than false precision, with a confidence level on every finding • Visible inclusions and blemishes, each labelled by how certain it really is • AI Loupe — zoom deep into your photograph, with findings marked where they were seen • Symmetry, proportions, polish and fluorescence indications • Market insights, given as ranges, in your currency • Buying insights: strengths, concerns, and the questions worth asking a seller • Selling insights: how to describe a stone honestly and position it well • Compare against a grading report you already hold • A shareable report, and your full history kept on your device HONEST BY DESIGN Photographs have limits, and this app says so. Where the evidence isn't there you get "insufficient evidence" rather than a guess. A weight you supply is never overwritten by an estimate. Nothing is ever presented as a certified grade. WHAT THIS IS NOT This is an AI visual assessment of photographs. It is not a laboratory grading report and it is not an appraisal. It cannot determine whether a stone is natural, laboratory-grown, a simulant, or treated — no photograph can. It does not replace physical examination, or a report from an accredited gemmological laboratory. Diamond Grader is not affiliated with, or endorsed by, any gemmological laboratory. LEARN Free, always: the 4Cs, diamond shapes, understanding inclusions, natural versus laboratory-grown, fluorescence, certificates, pricing, buying safely, and how to photograph a diamond well. PRIVACY Photographs you choose to assess are sent over an encrypted connection to an AI provider for processing. You are asked to consent before this happens for the first time, and you can withdraw that consent at any time in Settings. Your photographs, reports and notes are stored on your device. DIAMOND GRADER PRO Assessments are a subscription feature. There are no free assessments and no free trial. • Pro Weekly — billed every week • Pro Monthly — billed every month • Pro Annual — billed every year (best value) Pricing is shown in your local currency inside the app, before any purchase is made. Pro unlocks unlimited assessments, the AI Loupe, market insights, certificate comparison, shareable reports and your full assessment history. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your Apple Account settings. Privacy Policy: https://angelapplications.co.uk/privacy-policy/ Terms of Use: https://angelapplications.co.uk/terms-of-use/ Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Questions or feedback: contact@angelapplication.co.uk

Screenshots

Gold Purity Identifier4 screens
Diamond Grader4 screens

Verdict

The call

The clearest difference is device support: Gold Purity Identifier at 3 against Diamond Grader's 1. Gold Purity Identifier also leads on iOS requirement (15.1 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Gold Purity Identifier sells 2 in-app purchases, starting at $1.99 per 7 days and Diamond Grader sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences Ā· 3 level
Gold Purity Identifier versus Diamond Grader: the parameters behind the verdict, then further details
ParameterGold Purity IdentifierDiamond Grader
PriceFreeFree
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size41 MB7 MB
Age rating4+4+
DeveloperEternalBeam SoftwareAngel App Publishing Ltd.

In-app purchases

2 purchases

Gold Purity Identifier

Subscriptions2
  • Premium Weekly$1.997 Days
  • Premium Yearly$19.991 Year
3 purchases

Diamond Grader

Subscriptions3
  • Weekly Subscription$6.997 Days
  • Monthly Subscription$12.991 Month
  • Annual Subscription$59.991 Year

Questions

Is Gold Purity Identifier free?
Gold Purity Identifier is free to download, with in-app purchases available.
Is Diamond Grader free?
Diamond Grader is free to download, with in-app purchases available.
Do Gold Purity Identifier or Diamond Grader have ads?
Neither Gold Purity Identifier nor Diamond Grader shows ads.

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