# DiamondMaster — Wholesale Diamond Market Guide > Wholesale diamond market guide and pricing comparison tool for professionals. (iPhone/iPad app by Wayne Prentice.) - Source: https://appshunter.io/ios/app/diamondmaster/id447221419 (this page in markdown: same URL + `.md`) - Developer: [Wayne Prentice](https://appshunter.io/developer/447221422) - Category: Business, Education - Price: Free with in-app purchases - Rating: 4.00/5 from 5 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 35 MB - Languages: English - Released: 2011-07-13 - Data updated: 2026-06-10 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/diamondmaster/id447221419/reviews.md ## What is DiamondMaster? 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 ## Key features - 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 ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Wholesale "Bright List" 1 yr. | $199.99 | per year | | Wholesale "Bright List" 6 mo. | $109.99 | per 6 months | | Wholesale "Bright List" 1 mo. | $24.99 | per month | | Wholesale "Bright List" 1 wk. | $6.99 | per 7 days | ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/diamondmaster/id447221419/reviews.md ### 5/5 — Diamond Pricing *2019-01-24* Now the bugs have been fixed, this app is awesome! Calculates the wholesale price of “mined” diamonds AND the first and only app to calculate wholesale price of “lab grown” diamonds quickly and easily. I love this app and recommend the 1 year subscription to keep your finger on the pulse for the latest wholesale diamond price list. ### 1/5 — Crashes *2018-12-15* Crashes immediately. ### 5/5 — Great value *2014-06-01, version 4.2* I use this app every day in my work as a jewellery appraiser, it gives me instant access to prices on a wide selection of stones and when I found a large stone that was not covered by the list I contacted Wayne directly and he was able to do some research in the US. Very very helpful I regularly recommend this to my friends. Used in conjunction with other sources I feel very confident with the prices I arrive at John Bourke F. G. A. A. Dip. D.T. Registered valuer of the national council of jewellery valuers (Australia) ### 5/5 — Very useful *2014-01-31, version 3.8* I used this when buying a ring for my wife. Useful to compare the effect the 4 c's have on price. You enter your country's currency and vary the percentage markup to coincide with the online place your purchasing from and then start selecting. ### 5/5 — Diamond *2013-08-07* Awesome ### 5/5 — Excellent app *2013-06-07* This app was so useful, it's very accurate and I love the sub-divisions of the individual stone prices and mm for each stone. Thank you. ### 5/5 — DIAMONDMASTER *2013-05-10* A MUST BUY for anyone wanting to compare diamond sizes and appreciation rates! I am not aware of any other app with this capability. In doing research on the app developer it looks likes he has a strong background in the gem industry and is the founder of the Troy Diamond Report and has put together an app that both industry and lay people can use easily! I am looking forward to being able to gain a better understanding of not only the value of any diamond purchased but also of the appreciation value attached. So happy I found this! ### 1/5 — WARNING: DO NOT BUY!!! *2013-05-09* WORTHLESS APP AND DO NOT BUY IT OR GET IT!!!! ## Frequently asked questions about DiamondMaster ### What is DiamondMaster? DiamondMaster is a wholesale diamond market guide designed for professionals. It allows users to quickly compare diamond values, including both mined and lab-grown options, across various grading systems and currencies. ### Does DiamondMaster have ads? No, DiamondMaster does not contain advertisements. It is a free app with optional in-app purchases for subscription plans. ### What are the subscription options for DiamondMaster? DiamondMaster offers several subscription plans for its Wholesale 'Bright List' feature, including weekly ($6.99), monthly ($24.99), 6-month ($109.99), and yearly ($199.99) options. ### What diamond grading systems does DiamondMaster support? DiamondMaster simultaneously displays four international grading systems: Gemological Institute of America (GIA), International Diamond Council (IDC), American Gem Society (AGS), and Russian Grading System (TU). ### Can I track the value changes of diamonds with DiamondMaster? Yes, DiamondMaster displays the percentage of change for mined diamond values over the last year and five years, helping users understand appreciation or depreciation rates. ### What currencies does DiamondMaster support for pricing? DiamondMaster supports 11 currencies: USD, EUR, CHF, RUB, CAD, GBP, JPY, BRL, AUD, CYN, and INR. It also provides values in exchange to Gold's Annual Moving Average (XAU) and the IMF's Special Drawing Rights (XDR). ### What devices is DiamondMaster compatible with? DiamondMaster is compatible with iPhones, iPads, and iPods running iOS 11.0 or later. ### How does DiamondMaster help with diamond cutting? The app provides dimension guidelines for every cut shape and carat weight, allowing users to verify properly cut diamonds by weight and mm dimensions and compare sizes between shapes and budgets. ## Version history (last 5 releases) ### 6.6 — 2019-04-20 Improvements & Dataset Update! DiamondMaster App used by professional traders, investors and appraisers; provides what Rapaport doesn’t! ◆"Mined" AND "Lab Grown" Diamond Wholesale Pricing. ◆Compare Gemological Equivalent "Mined" and "Lab Grown" Diamond Values by pressing a single button! ◆Compare Quickly 10 Shapes with wholesale trading "Back of Rap" automatically factored into "Bright List" on every shape & quality. ◆Every "Mined" diamond's appreciation/depreciation rate (in each currency) is calculated over the last 1 and 5 years! ◆Global Price Adjuster resets whole dataset to display to your preferred markup, discount or returns to "Bright List," accordingly to changing needs, i.e. if buying, selling or type of appraisal. ◆Free Download with Demo. ◆4 Subscription Options: Week ($6.99), Month ($24.99-SAVE 10%), 1/2 Year (SAVE 39%!) or Year (SAVE 45%!!). ◆Subscribe and upgrade your "Bright List" subscription at anytime to display Up-to-Date wholesale diamond prices and latest changes in value! ### 6.5 — 2019-04-13 Important Wholesale Price Changes & Update! Designed for diamond professionals, the DiamondMaster App gives you what Rapport doesn’t! ◆First to Debut a "Lab Grown" Diamond Wholesale Pricing Guide. ◆First with capabilities to Compare Gemological Equivalent "Mined" and "Lab Grown" Diamond Pricing. ◆Wholesale Trade Pricing "Back of Rap" adjustments automatically factored in between shapes & quality categories. ◆Calculates each diamond's localized appreciation/ or depreciation rate over the last 1 and 5 years! ◆Comes with a "Global Price Adjuster" that you can reset at anytime for the app to display pricing, change its complete dataset to your preferred markup, discount and/or return back to "Bright List" reference depending upon need i.e. if buying, selling to a client or appraising. ◆Free Download with Demo Data to try App. ◆4 Subscription options available: Weekly ($6.99), Monthly ($24.99-SAVE 10%), 6 Months (SAVE 39%!) or Yearly (SAVE 45%!!). ◆Subscribe to the "Bright List" for Up-to-Date wholesale "Mined" diamond prices and the latest changes in value! ### 6.4 — 2019-03-07 Important 2019 "Mined" and "Lab Grown" Wholesale Diamond Price Changes & Update!! A Free Download. Display Latest Data by In-App-Purchase. Subscribe by the Month, 6 Months - SAVE 27% or by the Year - SAVE 33%! ### 6.3.1 — 2019-01-18 Improvements and fixes! DiamondMaster App is now The Global Wholesale "Mined" and "Lab Grown" Diamond Price List and Market Guide! Now with capabilities to quickly compare natural "Mined" diamonds to "Lab Grown" gemologically equivalent diamonds that are entering the diamond marketplace since 2018 at attractive discounts, with increasing availability in higher qualities and larger sizes. Troy Diamond Report's DiamondMaster App, is the first in the diamond industry to debut and maintain a global wholesale price list and market guide on Lab grown diamonds. Try it out in Demo Mode for free, then Subscribe to display the most up to date Data! Dataset updated with the latest end of year market results. Note: if you desire wholesale pricing only on natural "Mined" diamonds with appreciation (or depreciation) rates over the last 5 years and year calculated in 13 mediums of exchange, download Troy Diamond Reports® latest version of the DiamondExchange App's instead of DiamondMaster. Requires IOS 11 or higher. ### 6.2 — 2019-01-03 Happy New Year's update with improvements and fixes! DiamondMaster App is now The Global Wholesale "Mined" and "Lab Grown" Diamond Price List and Market Guide! Now with capabilities to quickly compare natural "Mined" diamonds to "Lab Grown" gemologically equivalent diamonds that are entering the diamond marketplace since 2018 at attractive discounts, with increasing availability in higher qualities and larger sizes. Troy Diamond Report's DiamondMaster App, is the first in the diamond industry to debut and maintain a global wholesale price list and market guide on Lab grown diamonds. Try it out in Demo Mode for free, then Subscribe to display the most up to date Data! Dataset updated with the latest end of year market results. Note: if you desire wholesale pricing only on natural "Mined" diamonds with appreciation (or depreciation) rates over the last 5 years and year calculated in 13 mediums of exchange, download Troy Diamond Reports® latest version of the DiamondExchange App's instead of DiamondMaster. Requires IOS 11 or higher. ## Apps similar to DiamondMaster | App | Rating | Price | Category | | --- | --- | --- | --- | | [UNI Diamonds](https://appshunter.io/ios/app/uni-diamonds/id1464519723) | 5.0 (8) | Free | Business | | [KGDiamonds](https://appshunter.io/ios/app/kgdiamonds/id1037306516) | 5.0 (1) | Free | Business | | [Stuller First®](https://appshunter.io/ios/app/stuller-first/id1500956452) | 1.0 (3) | Free | Business | | [LGDeal](https://appshunter.io/ios/app/lgdeal/id1554736198) | — | Free | Business | | [iDiamonds](https://appshunter.io/ios/app/idiamonds/id301382577) | 5.0 (1) | Free | Business | | [RapNet - The Diamond Market](https://appshunter.io/ios/app/rapnet-the-diamond-market/id530519916) | 4.0 (329) | Free | Business | ## More apps by Wayne Prentice - [DiamondExchange](https://appshunter.io/ios/app/diamondexchange/id645101343) All apps by Wayne Prentice: https://appshunter.io/developer/447221422 ## Related topics [diamond cbd](https://appshunter.io/ios/topics/diamond-cbd) · [d diamond](https://appshunter.io/ios/topics/d-diamond) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*