Comparison

DiamondMaster vs DiamondEyePro

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

Head to head
About

DiamondMaster

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
Read full description

AN ESSENTIAL TOOL FOR DIAMOND PROFESSIONALS, GEMOLOGISTS, APPRAISERS, INVESTORS AND TRADERS OF DIAMONDS. ◆ TIME SAVER: Quickly compares in seconds between diamonds: over 2 million permutations of wholesale values and between Gemological Equivalent "Mined" AND "Lab Grown" Diamond Pricing! "Bright List" from TROY DIAMOND REPORT® developed by Wayne D. Prentice, Graduate Gemologist and former Resident Gemology Instructor at the Gemological Institute of America (GIA) is your next generation Global Wholesale Market Guide on "Mined" and "Lab Grown" Diamonds! Follow Wholesale Diamond Prices in 13 Mediums of Exchange and by 8C's!! The 4C's of Cut Shape, Carat, Color, Clarity, plus "Cut Grade", "Cost", "Change in Value" over the last Year and 5 years and "Creation"! Appreciation Rates (or Depreciation) are calculated on every Mined Diamond Classification, revealing which diamond(s) are maintaining value in your localized market. This App quickly calculates every diamond's total cost, % change-in-value in each selected currency, and exchange to Troy ounces of gold - the universal unit of utility! ◆ 10 Cut Shapes - Round Brilliants and EACH "Fancy Shape" - Pear, Emerald Cut, Princess, Marquise, Oval, Radiant, Cushion, Trilliant & Heart (vs Rapaport's 2) ◆ 46 Carat Categories - from 1 point to 10 carats (vs Rapaport's 18) ◆ 10 Color Grades - D to M (GIA). ◆ 10 Clarity Grades - FL to I-3 (GIA). ◆ 13 Cost References: 11 Currencies - U.S. Dollar (USD), Euro (EUR), Swiss Franc (CHF), Russian Ruble (RUB), Canadian Dollar (CAD), British Pound (GBP), Japanese Yen (JPY), Brazilian Real (BRL), Australian Dollar (AUD), Chinese Yuan/Renminbi (CYN), Indian Rupee (INR), plus value in Exchange to Gold's Annual Moving Average stated in Troy Ounces (XAU) and a "Basket of Currencies Unit" - IMF's Special Drawing Rights (XDR). Whenever a diamond’s wholesale value is changing relative to the "Basket or Gold" it is truly changing! ◆ 4 GRADING SYSTEMS SIMULTANEOUSLY DISPLAYED: Gemological Institute of America (GIA), International Diamond Council (IDC), American Gem Society (AGS), and Russian Grading System (TU). DiamondMaster is the only diamond pricing App that displays all 4 international standards! ◆ Dimension Guidelines on every Shape & Carat Weight - verify properly cut diamond by weight and mm dimensions, compare sizes between Shapes and Budget! ◆ Per Carat and Total Diamond Value ◆ Displays Percentage of Change on “Mined” Diamond values over last year and 5 Years periods! ◆ Understand which Diamond Classifications and Markets are Appreciating or Losing Value at the Highest Rates! ◆ Global Price Adjuster: Reset the wholesale list prices to display to your personal preferences. Wholesalers can display at their desired discount, retailers at their desired premium and investors according to their needs whether selling, buying or evaluating for investment. ◆ Educational-Gemology on every cut shape ◆ Requires iOS 11.0 or later Subscribe to a In-App-Purchase Subscriptions to display the latest "Bright List": ◆ Week - $6.99 USD ◆ Month - $24.99 USD - SAVE 10% ◆ 1/2 Year - $109.99 USD - SAVE 39%! ◆ Year - $199.99 USD - SAVE 45%! • 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. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. —Privacy Policy link: https://www.troydiamondreport.com/diamond-prices/privacy_policy.asp —Terms of Use link: https://www.troydiamondreport.com/diamond-prices/terms_of_use.asp

About

DiamondEyePro

This app helps diamond dealers quickly identify and verify diamonds. It allows registration of diamonds and subsequent scanning to confirm authenticity. It can also check the condition of prongs on mounted diamonds.

Highlights
  • Diamond registration
  • Diamond scanning and verification
  • Prong condition check
  • Dealer-focused tool
Features
Read full description

DiamondEye Pro provides a Diamond Dealer a way to recognize your diamond. Using the DiamondEye kit and app you can register a diamond, and at any time scan that diamond again and we will verify it is the same diamond. If a mounted Damond was registered, the condition of the prongs can also be checked.

Screenshots

DiamondMaster4 screens
DiamondEyePro4 screens

Verdict

The call

The clearest difference is in-app purchases: DiamondEyePro at none against DiamondMaster's 4. DiamondEyePro also leads on review sentiment (100% vs 75%). DiamondMaster's advantage is update cadence (every 5 weeks vs every 4 months) and iOS requirement (11.0 vs 15.6). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

DiamondMaster ships an update every 5 weeks, DiamondEyePro every 4 months. The most recent releases landed on September 19, 2026 and June 4, 2026 respectively.

Scorecard5 real differences · 5 level
DiamondMaster versus DiamondEyePro: the parameters behind the verdict, then further details
ParameterDiamondMasterDiamondEyePro
PriceFreeFree
Rating4.0 (5 ratings) — better—
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings5 — better—
Update frequencyEvery 5 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size35 MB71 MB
Age rating4+4+
DeveloperWayne PrenticeGemEx Systems

Customer experience

DiamondMaster

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews8 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

DiamondEyePro

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

DiamondMaster

Subscriptions4
  • Wholesale "Bright List" 1 wk.$6.997 Days
  • Wholesale "Bright List" 1 mo.$24.991 Month
  • Wholesale "Bright List" 6 mo.$109.996 Months
Show 1 more
  • Wholesale "Bright List" 1 yr.$199.991 Year
None

DiamondEyePro

No in-app purchases

Questions

Is DiamondMaster free?
DiamondMaster is free to download, with in-app purchases available.
Is DiamondEyePro free?
DiamondEyePro is free to download, with no in-app purchases.
Do DiamondMaster or DiamondEyePro have ads?
Neither DiamondMaster nor DiamondEyePro shows ads.
Which is updated more often, DiamondMaster or DiamondEyePro?
DiamondMaster ships an update every 5 weeks, and DiamondEyePro every 4 months. Most recently, DiamondMaster was updated on September 19, 2026 and DiamondEyePro on June 4, 2026.

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