CMJ vs KG Diamonds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CMJ
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Your must have guide to the CMJ's two day Autumn 2023 Trade Event. CMJ suppliers will be showcasing their collections ahead of the Christmas season to CMJ retailers over the course of the two-day event, which brings members together to provide them with unique buying and networking opportunities.
KG Diamonds
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KG app is designed and developed to buy certified diamonds with hassle-free and secure way. App gives the easiest filters for diamond search followed by each diamonds in detail view. Hence giving customers a delightful experience of buying. For any diamonds, we make it convenient to view diamond related ideal scope images, Vision 360 degree video, lab certi, black background image, heart view, arrow view, ASET image. App can be easily accessible by sighing -up using your mobile number or email id. Feature available in the app are: 1)Select filters as per your requirement 2)Select the diamonds of your choice and click on “Add to Cart”. 3)Preview your choices and click on “Continue” to go to “My Order” page. 4)“My Order” page gives list of stones and final amount. 5)You may get the diamonds delivered at your place or pick up from KG House. 6)Clicking on “Continue” gives payment options. KG has unique grading system which comply with the International Standards, we provide certification from laboratories like GIA, HRD, IGI, AGS or other of Customer’s choice. We being the world’s most efficient and effective diamond company across the value chain, from rough sourcing, optimal manufacturing, direct polished distribution, to creative and innovated jewellery design and manufacturing.
Screenshots
Verdict
The clearest difference is update cadence: KG Diamonds at every 11 days against CMJ's every 22 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CMJ ships an update every 22 months, KG Diamonds every 11 days. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.
| Parameter | CMJ | KG Diamonds |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 22 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 71 MB | 130 MB |
| Age rating | 17+ | 4+ |
| Developer | THE COMPANY OF MASTER JEWELLERS LIMITED | K. GIRDHARLAL INTERNATIONAL PRIVATE LIMITED |
In-app purchases
CMJ
No in-app purchases
KG Diamonds
No in-app purchases









