GemBrain turns your iPhone into a powerful AI gemstone identifier. Snap a photo of any stone, crystal, or mineral and get an instant identification with confidence scores, detailed properties, and estimated market value, all in seconds.
Whether you're a collector, a healing crystal enthusiast, a rockhounding hobbyist, or simply curious about a stone you've found, GemBrain makes expert-level gemstone identification accessible to everyone.
IDENTIFY GEMSTONES WITH CONFIDENCE
Our advanced AI analyzes color, luster, structure, and surface texture to deliver accurate identifications every time. Just point your camera and let GemBrain do the work. No geology knowledge required.
KNOW WHAT YOUR FINDS ARE WORTH
Every scan includes a complete market valuation based on stone type, quality grade, and current pricing data. See estimated price ranges for rough, tumbled, and faceted forms so you always know the value of what you've found. Make buying and selling decisions backed by real market data.
SPOT FAKES BEFORE YOU BUY
Our Real vs. Fake guides teach you how to detect synthetic and imitation specimens. Learn visual tests, touch tests, and expert techniques for diamonds, emeralds, rubies, and more. Never be fooled again.
BUILD YOUR COLLECTION
Organize your personal collection with our rarity tracking system. Every identified specimen receives a rarity score from S to C, letting you see which finds are truly rare. Track collection stats, earn achievements, and view your highlights including rarest find, unique species identified, total scans, and active streak.
ASK AN EXPERT INSTANTLY
Have a question about gemstone properties, healing uses, care instructions, or market trends? Ask GemBrain's AI assistant and get expert answers on demand, with expertise on demand.
EXPLORE YOUR DISCOVERY LIBRARY
Dive into our educational content with crystal healing guides, birthstone profiles, stone comparisons, and collecting tips. Learn gemstone geology, metaphysical properties, and historical significance from our curated articles.
DETECT MAGNETIC STONES
GemBrain includes a built-in metal detector using your phone's magnetometer. Test any specimen for magnetic properties, detect iron-based minerals, and add another layer to your identification process. Simply move your phone around any specimen for real-time readings.
Trusted by crystal enthusiasts, rockhounding hobbyists, and gem collectors worldwide. Download GemBrain today and start identifying with accuracy. Your next great find is one photo away.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
identifies fine and gives me a starting range, reddit is great if you have two days and don't mind wrong answers, this is at least right now. still hop on ebay after for sold comps but that's on me not the app
Developer Response
Thanks for the review! Quick, accurate valuations instead of waiting days on Reddit is exactly what we're going for.
Solid ID, would love deeper valuation data eventually
myron mirta
The identification engine is better than I expected going in, and I say that as someone who wrote this whole category off after Rockd embarrassed itself years back. I ran it on a Tsumeb specimen I paid $1,850 for and the species and physical data came back accurate, which is what actually matters to me. I'd like the valuation ranges to get sharper about collector-grade versus bulk specimen pricing at some point, but that's a wish list item, not a complaint — the identifications themselves are what I'm paying for.
Developer Response
Thank you! Accuracy on collector-grade specimens like that Tsumeb is exactly what we're aiming for. We'll definitely look into refining the valuation data for collector versus bulk pricing.
didn't tell him I doubted him until after
Townsend Leahy
my partner got me a rose quartz heart for our anniversary from some little roadside shop and I did not want to seem ungrateful by questioning it out loud in front of him so I just went to the bathroom and scanned it real quick. genuine, 89%. told him later, he thought it was funny that I doubted him. we'd also just had tacos from this place that gave both of us food poisoning later that night, unrelated, but that's the night I remember this happening
Developer Response
We love that GemBrain could help verify the rose quartz discreetly. Thank you for sharing that story!
if it's fake does it even work
Dagmar_Cecilez
I hate that I'm even asking this question but if it's fake does it even work, I mean spiritually. anyway scanned my "black tourmaline," $22, turned out to be dyed obsidian. weirdly relieved to actually know instead of using it for protection stuff and wondering the whole time. already eyeing a real one to replace it
Developer Response
Real answers instead of wondering is exactly what we're here for. Glad GemBrain could help you make that informed choice for your collection.
This update includes general performance and stability improvements across the app.
We refined several interface elements for a smoother, more polished experience.
Various minor bug fixes have been applied to improve overall reliability.
Thank you for using the app - we're continually working to make it better.
Version 2.2.5
The developer, Apparent Group Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Identifiers
Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
Identifiers
Usage Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Apparent Group Limited
Size
64.4 MB
Category
Utilities
Compatibility
Requires iOS 15.1 or later.
iPhone Requires iOS 15.1 or later.
iPod touch Requires iOS 15.1 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
