# DiamondMaster vs AIGS

The clearest difference is rating: AIGS at 4.5 against DiamondMaster's 4.0. AIGS also leads on in-app purchases (none vs 4). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. DiamondMaster sells 4 in-app purchases, starting at $6.99 per 7 days. AIGS asks for nothing beyond the download.

AIGS holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

DiamondMaster ships an update every 5 weeks, AIGS every 6 weeks. The most recent releases landed on September 19, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | DiamondMaster | AIGS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/diamondmaster/id447221419/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/aigs/id1448968821/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 35 MB | 1.1 GB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wayne Prentice](https://appshunter.io/developer/447221422) | [Kennedy Ho](https://appshunter.io/developer/927311625) |

## What reviewers say

### DiamondMaster

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

This app provides wholesale diamond pricing and market analysis for professionals. It compares mined and lab-grown diamonds across multiple grading systems and currencies, offering insights into value appreciation and depreciation.

**Highlights:** Compares mined and lab-grown diamonds, Wholesale value comparisons, 13 mediums of exchange and 8 C's, 4 grading systems displayed simultaneously, Dimension guidelines for shapes and carat weights, Tracks value appreciation/depreciation, Global price adjuster

**Features:** macOS Compatibility

**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 |


### AIGS

[App page](https://appshunter.io/ios/app/aigs/id1448968821)

Verify gemstone reports using advanced QR code scanning and explore detailed gemstone information with augmented reality. This tool enhances understanding and security for precious stones.

**Highlights:** QR Code scanning for report verification, Augmented Reality (AR) gemstone insights, Enhanced security for precious information, Direct link to security system, Virtual insights on gemstone details

**In-app purchases:** none


## Frequently asked questions

### Is DiamondMaster free?

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

### Is AIGS free?

AIGS is free to download, with no in-app purchases.

### Which has better reviews, DiamondMaster or AIGS?

AIGS is rated higher. DiamondMaster averages 4.0 out of 5 from 5 ratings, while AIGS averages 4.5 from 2 ratings.

### Do DiamondMaster or AIGS have ads?

Neither DiamondMaster nor AIGS shows ads.

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

DiamondMaster ships an update every 5 weeks, and AIGS every 6 weeks. Most recently, DiamondMaster was updated on September 19, 2026 and AIGS on September 12, 2026.

---

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