# Primo Jewelry: Ring Sizer — Gem Identifier & Appraisal

> Gem Identifier & Appraisal (iPhone/iPad app by Primo Technology Ltd..)

- Source: https://appshunter.io/ios/app/primo-jewelry-ring-sizer/id6771894523 (this page in markdown: same URL + `.md`)
- Developer: [Primo Technology Ltd.](https://appshunter.io/developer/1809398942)
- Category: Shopping, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 23 MB
- Languages: American English
- Released: 2026-05-30
- Data updated: 2026-08-24
- User reviews in markdown: https://appshunter.io/ios/app/primo-jewelry-ring-sizer/id6771894523/reviews.md

## What is Primo Jewelry?

Primo Jewelry turns your phone into a jewelry identifier, value estimator, and ring sizer. Snap one photo of any ring, necklace, bracelet, watch, or loose gemstone and let AI tell you what it is and what it is worth.

WHAT IS MY JEWELRY WORTH?
Take a single photo and the AI identifies the piece (type, metal, karat, and stones), then estimates its value using real sold prices from online marketplaces, not guesswork. You get an estimated resale value, a price range, and the comparable sales behind it.

RING SIZER
No printable strips and no guessing. Place a standard bank card next to your ring or finger, take two photos, and Primo Jewelry measures the inner diameter and returns your US size plus UK, EU, and JIS equivalents, circumference, and neighbouring sizes.

KEY FEATURES
- AI jewelry identifier for rings, necklaces, bracelets, watches, and gemstones
- Real-world value estimate based on comparable sold listings
- Camera ring sizer with US, UK, EU, and JIS sizes
- Estimated price range and recent sold comparables
- Local history of every scan and measurement
- Choose your currency
- No account required, your photos stay private

WHO IT IS FOR
- Anyone who needs a ring size fast, for an engagement or a gift
- Owners gauging what a piece is worth before selling or insuring
- Resellers and estate sellers pricing jewelry before listing
- Collectors valuing inherited or vintage pieces

Primo Jewelry gives estimates for guidance only. It is not a certified appraisal or professional ring sizing. Always confirm with a jeweler when accuracy matters.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Weekly | $5.99 | per 7 days |
| Premium Yearly | $39.99 | per year |



## Version history (last 2 releases)

### 1.0.3 — 2026-07-17

Bug fixes.

### 1.0.1 — 2026-05-30

No release notes.

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## More apps by Primo Technology Ltd.

- [Primo Nautic - Vessel Finder](https://appshunter.io/ios/app/primo-nautic-vessel-finder/id1204964581)
- [Voice Memos - TLDL Notes](https://appshunter.io/ios/app/voice-memos-tldl-notes/id6739296817)
- [Primo Trade: AI Profit Charts](https://appshunter.io/ios/app/primo-trade-ai-profit-charts/id6758272721)
- [Primo Scale: Scale for Grams](https://appshunter.io/ios/app/primo-scale-scale-for-grams/id6761748068)
- [Primo Worth: Jewelry & Coin](https://appshunter.io/ios/app/primo-worth-jewelry-and-coin/id6771894159)

All apps by Primo Technology Ltd.: https://appshunter.io/developer/1809398942

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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 2026-08-24.*