CARATRATE vs UNI Diamonds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Diamond valuation
- Diamond pricing
- Natural diamond focus
- Buying/selling assistance
- Simple interface
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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.
UNI Diamonds
Access a live marketplace for over 2 million diamonds from hundreds of suppliers. Search by specific criteria, get competitive cash prices, and facilitate secure, insured delivery directly from your mobile device.
- Live diamond marketplace
- 2 million+ stones available
- 450+ trusted suppliers
- Search by exact criteria
- Competitive cash prices
- Secure, insured delivery
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UNI puts a live diamond marketplace in your pocket, with over 2 million stones from 450+ trusted suppliers. Search by your exact criteria, get the best cash prices, and find the right stones in seconds from anywhere in the world. Every stone is ready for immediate purchase with secure, fully insured delivery through Malca-Amit. Trade smarter, move inventory faster, and close more deals straight from your phone.
Screenshots
Verdict
CARATRATE and UNI Diamonds both sit at 5.0 stars, but that hides the real split: 100% of CARATRATE's written reviews are positive against 67% of UNI Diamonds's. UNI Diamonds's advantage is update cadence (every 6 days vs every 3 months) and ratings volume (8 vs 2). On price, rating, ads and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for CARATRATE against 5.0 for UNI Diamonds. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews are what separate them: 100% of CARATRATE's written reviews are positive against 67% of UNI Diamonds's.
CARATRATE ships an update every 3 months, UNI Diamonds every 6 days. Both last shipped on October 29, 2026.
| Parameter | CARATRATE | UNI Diamonds |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (8 ratings) |
| Positive reviews | 100.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 2 | 8 — better |
| Update frequency | Every 3 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Dia Analytics LLP | U.N.I Technologies LTD |
Customer experience
CARATRATE
UNI Diamonds
In-app purchases
CARATRATE
No in-app purchases
UNI Diamonds
No in-app purchases
