Comparison

DiamondMaster vs Rapaport Trade (RapNet)

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 reference values for diamonds, allowing professionals to compare classifications and adjust pricing based on various exchange units. Explore the '8 C's' and 27 different cost units, including currencies, precious metals, and cryptocurrencies, to understand diamond valuation across time and economic shifts.

Highlights
  • Explore the '8 C's' of diamonds
  • Compare values across 27 cost units
  • Analyze natural and lab-grown diamonds
  • Track 1-year and 5-year value changes
  • Adjust pricing with Global Value Adjuster
  • Supports 12 currencies, precious metals, and crypto
Features
Read full description

ONE DIAMOND. TWENTY-SEVEN WAYS TO MEASURE ITS VALUE. What changes when you measure a diamond in gold instead of dollars? Or Bitcoin instead of Swiss francs? DiamondMaster helps diamond professionals, gemologists, appraisers, buyers and traders explore wholesale reference values for Mined-Natural and Grown-Created diamonds. Compare classifications, adjust your pricing basis, and see how a different exchange unit changes the picture. Developed by Wayne D. Prentice, Graduate Gemologist and former GIA Resident Gemology Instructor, DiamondMaster brings gemological knowledge and the BrightList wholesale reference guide together on iPhone and iPad. EXPLORE THE 8 C'S Cut Shape, Carat, Color, Clarity, Cut Grade, Cost, Change in Value and Creation—the diamond's natural or laboratory-grown origin. • 10 shapes: Round, Pear, Emerald, Princess, Marquise, Oval, Radiant, Cushion, Trilliant and Heart. • Shape-specific carat selections, with 46 categories for Round, from 0.01 ct through the 10–10.99 ct range. • 10 color grades, D–M, and 10 clarity grades, IF–I-3. • Five cut-grade selections, Excellent through Poor. • Separate natural and lab-grown reference datasets. • Per-carat and total reference values, dimension guidelines, grading descriptions and shape-specific gemological information. 27 COST UNITS WITH BRIGHTLIST Keep the diamond selection. Change the measuring stick. 12 currencies: USD, EUR, JPY, CHF, CAD, GBP, AUD, BRL, RUB, INR, CNY and ZAR. 2 basket references: • XDR: the IMF's Special Drawing Right. • XUNT: DiamondMaster's calculated reference for the proposed gold-and-currency BRICS+ "THE UNIT" basket. 6 precious-metal units: • Gold (XAU), platinum (XPT) and silver (XAG), each by troy ounce. • Gold by gram: Denari (XDEN). • Gold by 100 grams: Centum (XCEN). • Gold by kilogram: Milia (XMIL). 7 crypto assets: Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), Cardano (ADA), Solana (SOL), PAX Gold (PAXG) and Zcash (ZEC). COMPARE ACROSS TIME Natural-diamond screens show 1-year and 5-year percentage changes in your selected Cost unit. By liberating diamond valuation from the traditional US Dollar peg, the 'Bright List' normalizes a diamond's intrinsic scarcity, extraction costs, and luxury premium across 27 distinct economic units. Whether you are tracking a gem by its 4 C’s or analyzing macro liquidity shifts, our advanced dual-period tracking over 1- and 5-year intervals reveals the true reality of wealth: letting you see instantly whether your diamond is genuinely appreciating, or if your chosen currency is losing its purchasing power. MAKE THE LIST YOUR OWN Use the Global Value Adjuster to apply a discount or premium across diamond calculations. Explore your preferred buying or selling basis, or return to LIST with a 1.00 multiplier. DEMO AND SUBSCRIBER ACCESS Without an active subscription, explore the calculators using older demonstration data and a smaller Cost-unit selection. A BrightList subscription unlocks subscriber diamond reference datasets and all 27 Cost units. Exchange data refreshes on a daily cycle when connectivity and source data allow. Values may use earlier saved or supplied data; this is not a continuous trading feed. SUBSCRIPTIONS Choose from 7-day, 1-month, 6-month or 1-year auto-renewing plans. Current prices and terms appear in the app before purchase. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Renewal is charged within the preceding 24 hours. Manage or cancel in Apple Account settings. Use Restore Subscription to check existing access. Reference values are not individual appraisals, purchase offers or guaranteed resale prices. DiamondMaster does not execute trades. Privacy Policy: https://www.diamondmaster.net/privacy_policy.php Terms of Use: https://www.diamondmaster.net/terms_of_use.php

About

Rapaport Trade (RapNet)

Access a vast global marketplace for diamonds, jewelry, and gemstones on your mobile device. Search, price, connect, and trade billions in daily listings with real-time alerts and secure transaction tools. Stay informed with market insights and connect with verified industry professionals worldwide.

Highlights
  • Global B2B diamond, jewelry, and gemstone market access
  • Search and compare millions of items with advanced filters
  • Real-time pricing tools and market insights
  • Instant alerts for messages, offers, and updates
  • Mobile trading and secure transaction capabilities
  • Connect with verified industry professionals
Features
Read full description

The Rapaport Trade (formerly RapNet) app gives you full access to the world’s largest professional marketplace for natural diamonds and gems in the palm of your hand. Find any stone at the best price by searching nearly 2 million listings from verified suppliers around the world, with NO commission or transaction fees. Search natural diamonds with advanced filters, price diamonds using the Rapaport Trade Pricing Calculator, and evaluate opportunities with real market data. The Rapaport Trade app lets you deal directly with buyers and sellers without a middleman, helping you move faster and negotiate with confidence. Whether you are sourcing, selling, or pricing stones, Rapaport Trade is at your fingertips on the go. Built for diamond and gem professionals who need on-the-go inventory access, accurate diamond pricing, and trusted trading relationships. Key Features • Find any natural diamond or colored gem from trusted global sellers • “Best Match” search provides more relevant results • Price natural diamonds using the Rapaport Trade Pricing Calculator & TradeScreen • Deal directly with buyers and sellers with an integrated chat and trade center • Source natural colored gems and finished jewelry in one seamless platform • Easily share stones that include your markup with potential clients

Screenshots

DiamondMaster4 screens
Rapaport Trade (RapNet)4 screens

Verdict

The call

The clearest difference is in-app purchases: Rapaport Trade (RapNet) at none against DiamondMaster's 4. DiamondMaster's advantage is ads (none vs shown) and review sentiment (75% vs 63%). On price, update cadence, monetization model 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. Rapaport Trade (RapNet) asks for nothing beyond the download.

UpkeepUpdate frequency

DiamondMaster ships an update every 5 weeks, Rapaport Trade (RapNet) monthly. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 7 level
DiamondMaster versus Rapaport Trade (RapNet): the parameters behind the verdict, then further details
ParameterDiamondMasterRapaport Trade (RapNet)
PriceFreeFree
Rating—4.0 (336 ratings) — better
Positive reviews75.0% of reviews — better62.5% of reviews
Number of ratings—336 — better
Update frequencyEvery 5 weeksMonthly — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.0 — better
Further details — not scored
Size23 MB78 MB
Age rating4+4+
DeveloperWayne D. Prentice, G.G.Rapaport

Customer experience

DiamondMaster

Written reviews8 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Rapaport Trade (RapNet)

All ratings333 ratings
Positive73.6%
Neutral4.8%
Negative21.6%
Written reviews64 reviews
Positive62.5%
Neutral3.1%
Negative34.4%

Bugs and requests

DiamondMaster

Not enough reviews yet to summarise bugs or requests.

Rapaport Trade (RapNet)

Reported bugs

10 issues
  • Articles fail to upload in news section
  • App crashes immediately upon opening after update
  • Price calculator not updating
  • Price list displays all zeros
  • Point button not working
Show 5 more
  • App freezes on fancy diamonds but works on rounds
  • Price changes never display, just freezes
  • Clarity and color selection do not align properly
  • Frequent need to restart app
  • Extended download and update times

Requested features

10 requests
  • Offline support and offline calculator
  • iPad app with full line details
  • Different colors for Rounds vs Fancy Shapes lists
  • View personal inventory within app
  • Recut option for calculator
Show 5 more
  • User comments on stones
  • Member lookup by RapNet number
  • Stay logged in functionality
  • Free diamond calculator option
  • iPhone X support

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

Rapaport Trade (RapNet)

No in-app purchases

Questions

Is DiamondMaster free?
DiamondMaster is free to download, with in-app purchases available.
Is Rapaport Trade (RapNet) free?
Rapaport Trade (RapNet) is free to download, with no in-app purchases.
Do DiamondMaster or Rapaport Trade (RapNet) have ads?
Rapaport Trade (RapNet) shows ads; DiamondMaster does not.
Which is updated more often, DiamondMaster or Rapaport Trade (RapNet)?
DiamondMaster ships an update every 5 weeks, and Rapaport Trade (RapNet) monthly. Most recently, DiamondMaster was updated on November 6, 2026 and Rapaport Trade (RapNet) on November 10, 2026.

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