# The Diamond Store Ring Sizer > Free app to accurately measure ring sizes in multiple international standards. (iPhone/iPad app by TheDiamondStore.co.uk.) - Source: https://appshunter.io/ios/app/the-diamond-store-ring-sizer/id972698219 (this page in markdown: same URL + `.md`) - Developer: [TheDiamondStore.co.uk](https://appshunter.io/developer/981926075) - Category: Lifestyle, Utilities - Price: Free - Age rating: 4+ - Requires: iOS 13.0 · 5 MB - Languages: American English - Released: 2015-03-20 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/the-diamond-store-ring-sizer/id972698219/reviews.md ## What is The Diamond Store Ring Sizer? Our free Ring Size App is accurate and easy to use Find out a ring size in UK, EU or USA measurements. All sizes F - Z included, from smallest to largest finger. Simply place your loved one's existing ring on your phone screen, and then adjust the circle until it fits the inside of the ring exactly. This app helps you keep an engagement ring or a special gift a surprise and saves you a trip to the jewellers. The Diamond Store – Luxury With Confidence ## Key features - Accurate ring size measurement - Supports UK, EU, and USA sizing - Covers all sizes F-Z - Easy to use interface - Keeps gift purchases a surprise ## Recent user reviews (10 of 17) All indexed reviews: https://appshunter.io/ios/app/the-diamond-store-ring-sizer/id972698219/reviews.md ### 1/5 — Rubbish *2024-11-02, version 3.1* App doesn’t work slider does nothing to circle ### 1/5 — Sizes completely wrong *2023-11-22, version 2.7* Clearly don’t update the app very regularly as your sizes are completely out depending on which phone you use, maybe you need to adjust this! Other ring sizing apps are more accurate so how come yours isn’t? ### 1/5 — Buy elsewhere *2021-12-23* Do not buy. Blatantly lie and cannot deliver orders on time. Slow to respond. ### 1/5 — iPhone 11Pro *2021-02-05, version 2.5* Compared to measurements it’s completely out! Ring is most likely k1/2 and app says m! (UK) ### 1/5 — Ring sizes are completely differen *2020-06-09, version 2.4* Depending on phone, there is a huge difference. iPhone XS Max gives size N, iPhone XR gives size V ### 1/5 — Compared with different phones *2019-10-29, version 2.4* Compared with different phones and the results are inconsistent - iPhone 11 Pro tells me it’s size H, whereby an iPhone 7 indicates it’s size K. Having used various other methods to measure the ring, I know it’s neither H, nor K. ### 5/5 — Best ring sizer I've found! *2017-12-31* Great app! Thanks for the fractional sizes to make it more precise! ### 1/5 — This just doesn't work! *2017-03-28, version 2.1* It's completely wrong! ### 5/5 — Amazing! *2016-12-14, version 2.0* Really couldn't be bothered to go to a shop just to find ring size. Works great. Thank you! ### 1/5 — Awful *2016-11-23, version 1* Ring had to be returned for MUCH smaller size. Don't use this ap, it's nowhere even close to being correct! ## Frequently asked questions about The Diamond Store Ring Sizer ### How does The Diamond Store Ring Sizer work? The Diamond Store Ring Sizer allows you to measure a ring's size by placing an existing ring on your phone screen. You then adjust a circle to perfectly fit the inside of the ring, providing accurate measurements in UK, EU, or USA standards. ### What ring sizes can The Diamond Store Ring Sizer measure? The app supports a comprehensive range of ring sizes, from F to Z, encompassing the smallest to largest finger sizes available. ### Can The Diamond Store Ring Sizer help me keep a ring a surprise? Yes, the app is designed to help you discreetly determine a ring size without needing to visit a jeweler, making it ideal for surprise engagement rings or gifts. ### What measurement standards does The Diamond Store Ring Sizer support? The Diamond Store Ring Sizer provides ring size measurements in UK, EU, and USA standards, offering flexibility for international users. ### Is The Diamond Store Ring Sizer available on Android devices? The Diamond Store Ring Sizer is available for iPhone, iPad, and iPod devices. Compatibility with Android is not specified in the provided data. ### How often is The Diamond Store Ring Sizer updated? The app was last updated on October 24, 2025, indicating recent maintenance and potential improvements. The current version is 3.2.1. ### Does The Diamond Store Ring Sizer have ads? No, The Diamond Store Ring Sizer does not contain advertisements. The app is free to use without any ad interruptions. ### What is the age rating for The Diamond Store Ring Sizer? The Diamond Store Ring Sizer has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 5 releases) ### 3.2.1 — 2025-10-24 bug fixes ### 3.2 — 2024-11-27 bug fixes ### 3.1 — 2024-07-29 bug fixes ### 3.0 — 2023-12-19 - bugfixes ### 2.7 — 2021-11-01 - bugfixes ## Apps similar to The Diamond Store Ring Sizer | App | Rating | Price | Category | | --- | --- | --- | --- | | [Social Tip: Post & Earn](https://appshunter.io/ios/app/social-tip-post-and-earn/id6497486488) | 4.7 (441) | Free | Lifestyle | | [Shepper](https://appshunter.io/ios/app/shepper/id1190269020) | 1.5 (4) | Free | Lifestyle | | [Bridebook - #1 Wedding Planner](https://appshunter.io/ios/app/bridebook-1-wedding-planner/id1200853011) | 4.7 (208) | Free | Lifestyle | | [Coconut Lane](https://appshunter.io/ios/app/coconut-lane/id1635417373) | 5.0 (3) | Free | Lifestyle | | [Wren Kitchens](https://appshunter.io/ios/app/wren-kitchens/id1479770833) | 3.6 (169) | Free | Lifestyle | | [Turtle Bay](https://appshunter.io/ios/app/turtle-bay/id1251500120) | 5.0 (7) | Free | Lifestyle | ## Related topics [diamond store](https://appshunter.io/ios/topics/diamond-store) · [oura ring 4](https://appshunter.io/ios/topics/oura-ring-4) · [ring sizer without physical ring](https://appshunter.io/ios/topics/ring-sizer-without-physical-ring) · [diamond ring app](https://appshunter.io/ios/topics/diamond-ring-app) --- *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 2026-06-01.*