Comparison

iDiamonds vs CARATRATE

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iDiamonds

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
Read full description

Best App for Diamond Professionals Today! Top 20 Paid Application! Top 20 Grossing Application! Always Cheaper, Better, Faster!!! And now with more features! iDiamonds is a software for jewelers and diamond professionals that provides an easy access to diamond prices published by Rapaport Diamond Report. Features: - New & innovative Design! - Color, clarity, shape, and size picker for quick access to list price. -HOT: GIA/HRD/IGI Once Click CERT DOWNLOAD. It Converts PDF and saves it to photos folder as image. -HOT: Auction Calculator. Supports 1,2, or 3 tiers. - Carats and percent input boxes for easy calculation of price per carat and total price. - easy to use, fast, and increases productivity. - Anchor Control: Simply press which parameters you would like to remain constant, and iDiamonds will do the rest. - Editable Total price & PPC fields to calculate discount level. - Best and average price from Rapport database to see where you stand compared to the market - Currency Converter - Report and invoice generation: - Create diamond reports to see the total price, average ppc, average percentage, and total carats - Checkbox to quickly add or remove stones from the totals' calculation - Ability to save reports, rename the files, or delete old files. - Reports can be used in any currency, with different exchange rates (one currency for report). - Ability to email a report using in app-email. You will not leave the app as other applications do. - Rapaport and iDiamonds News - Deal of the Day RSS added. Find hot deals from top diamond manufacturers/wholesalers. - Ability to download new reports from Rapaport and stay up-to-date with diamond prices (One-touch synchronization). - AUCTION MODE! Choose the auction currency, set up the desired exchange rate, set up the anchor control to total price. The segment control will change and will allow you to increase the total price together with the Auctioneer. - Ability to send emails of links, article, reports, and feedback WITHOUT leaving the app. - NO ANNOYING POPUP ADS. Here at iDiamonds Mobile we understand that you need this application for business and that you do not want to see annoying popup ads in your paid app. Therefore, we strategically decided to be the only iPhone App with the Rapaport list price that commits not to put any popup ads in our app. - Fast loading time: 3.5-4 seconds loading time! - Shapes wheel contains 31 shapes (should be used for the best and average price of a specific shape and when adding a stone to an invoice) - Use both the 5ct list and the 10ct list for stones over 10ct from the Calc screen, without the need to change tabs. When you enter carat weight over 10 carat in the Carat Weight Textfield, the wheel will jump to the 5ct List. If you still want to see the price with 10ct list, just press on the 10ct section on the wheel. Note: you can disable this feature in the "Settings Bundle". ***Important Notice: This application requires Rapaport username and password. In-App Purchase Information - Rapaport Diamond Prices Calculator - Price Sheet Published Weekly and can be updated any day 24/7 - Cost of subscription to use all features of the App (9.99 per month) - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - No cancellation of the current subscription is allowed during active subscription period - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication. Terms of Use: https://bit.ly/2ULRpUM Privacy Policy: https://bit.ly/2UJEumi

About

CARATRATE

This app simplifies the complex valuation of natural diamonds. It provides users with pricing information to assist in buying or selling diamonds, aiming to make the process straightforward for even experienced traders.

Highlights
  • Diamond valuation
  • Diamond pricing
  • Natural diamond focus
  • Buying/selling assistance
  • Simple interface
Features
Read full description

CARATRATE "Real diamond pricing made really simple" It is said every diamond is unique, one in a billion. That makes it's valuation/pricing very complicated. Even people who trade in diamonds for many years face difficulties while pricing diamonds. CARATRATE is an endeavour to facilitate those who deal in natural diamonds. Check CARATRATE price before buying/selling a diamond.

Screenshots

iDiamonds3 screens
CARATRATE4 screens

Verdict

The call

The clearest difference is in-app purchases: CARATRATE at none against iDiamonds's 1. CARATRATE also leads on review sentiment (100% vs 68%). iDiamonds's advantage is iOS requirement (8.0 vs 12.1). On price, rating, ratings volume and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. iDiamonds sells 1 in-app purchase, starting at $9.99 per month. CARATRATE asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for iDiamonds against 5.0 for CARATRATE. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 68% of iDiamonds's written reviews are positive against 100% of CARATRATE's.

UpkeepUpdate frequency

iDiamonds ships an update every 4 months, CARATRATE every 2 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
iDiamonds versus CARATRATE: the parameters behind the verdict, then further details
ParameteriDiamondsCARATRATE
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews68.4% of reviews100.0% of reviews — better
Number of ratings12 — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better12.1
Further details — not scored
Size13 MB31 MB
Age rating4+4+
DeveloperRoei Kashi ProductionDia Analytics LLP

Customer experience

iDiamonds

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews19 reviews
Positive68.4%
Neutral0.0%
Negative31.6%

CARATRATE

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

iDiamonds

Subscriptions1
  • iDiamonds Monthly Subscription7 Days trial$9.991 Month
None

CARATRATE

No in-app purchases

Questions

Is iDiamonds free?
iDiamonds is free to download, with in-app purchases available.
Is CARATRATE free?
CARATRATE is free to download, with no in-app purchases.
Which has better reviews, iDiamonds or CARATRATE?
iDiamonds and CARATRATE are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do iDiamonds or CARATRATE have ads?
Neither iDiamonds nor CARATRATE shows ads.
Which is updated more often, iDiamonds or CARATRATE?
iDiamonds ships an update every 4 months, and CARATRATE every 2 months. Most recently, iDiamonds was updated on October 23, 2026 and CARATRATE on October 24, 2026.

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