# iDiamonds vs DiamondMaster

The clearest difference is update cadence: DiamondMaster at every 5 weeks against iDiamonds's every 4 months. DiamondMaster also leads on review sentiment (75% vs 62%). iDiamonds's advantage is iOS requirement (8.0 vs 16.4). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. iDiamonds sells 1 in-app purchase, starting at $9.99 per month and DiamondMaster sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

iDiamonds ships an update every 4 months, DiamondMaster every 5 weeks. Both last shipped on November 6, 2026.

## The numbers

| Metric | iDiamonds | DiamondMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/idiamonds/id301382577/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 61.9% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 23 MB |
| Requires iOS | **8.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roei Kashi Production](https://appshunter.io/developer/301382580) | [Wayne D. Prentice, G.G.](https://appshunter.io/developer/447221422) |

## What reviewers say

### iDiamonds

[App page](https://appshunter.io/ios/app/idiamonds/id301382577)

This app provides diamond professionals with quick access to Rapaport diamond prices. It features tools for calculating prices, downloading certificates, and generating reports, all without intrusive ads.

**Highlights:** Access Rapaport diamond prices, Color, clarity, shape, size picker, One-click GIA/HRD/IGI certificate download, Auction calculator with multi-tier support, Carat and percentage input for price calculation, Report and invoice generation, Currency converter

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iDiamonds Monthly Subscription | $9.99 | per month |


### DiamondMaster

[App page](https://appshunter.io/ios/app/diamondmaster/id447221419)

This app provides wholesale reference values for diamonds, allowing professionals to compare classifications and adjust pricing based on various exchange units. Explore the '8 C's' and 27 different cost units, including currencies, precious metals, and cryptocurrencies, to understand diamond valuation across time and economic shifts.

**Highlights:** Explore the '8 C's' of diamonds, Compare values across 27 cost units, Analyze natural and lab-grown diamonds, Track 1-year and 5-year value changes, Adjust pricing with Global Value Adjuster, Supports 12 currencies, precious metals, and crypto

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wholesale "Bright List" 1 wk. | $6.99 | per 7 days |
| Wholesale "Bright List" 1 mo. | $24.99 | per month |
| Wholesale "Bright List" 6 mo. | $109.99 | per 6 months |
| Wholesale "Bright List" 1 yr. | $199.99 | per year |


## Frequently asked questions

### Is iDiamonds free?

iDiamonds is free to download, with in-app purchases available.

### Is DiamondMaster free?

DiamondMaster is free to download, with in-app purchases available.

### Do iDiamonds or DiamondMaster have ads?

Neither iDiamonds nor DiamondMaster shows ads.

### Which is updated more often, iDiamonds or DiamondMaster?

iDiamonds ships an update every 4 months, and DiamondMaster every 5 weeks. Most recently, iDiamonds was updated on November 6, 2026 and DiamondMaster on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*