Launching today

CaratRank

Launching today

The lowest price on any diamond

14 followers

The lowest price on any diamond

14 followers

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Ecommerce platforms

•

Marketplace sites

We search 20+ diamond retailers to show you the cheapest listings for any specific diamond. Many times, retailers mark diamonds up by 10x vs. wholesale prices, and we're the only site that can show you where to find the best deals. We match stones by IGI, GIA, or GCAL certificate and allow you to search by style or by certificate number (which isn't a feature any retailer offers). Furthermore, we're unbiased: we don't take any referral fees from anyone.

Free

Launch tags:Jewelry•E-Commerce•OpenAI Day

Launch Team / Built With

Framer AI AgentsDesign and publish professional sites with AI

Promoted

OpenAI

OpenAI Day

What did GPT-5.6 Sol, Terra and Luna unlock that made your launch possible?

Maker

GPT-5.6 was able to solve significant engineering challenges with collating data across each diamond retailer. This was impossible with any other model, and it was only through ingenuity (and GPT 5.6) that we were able to solve this! We are the only product on the market that has done this, so thank you so much Sol!!

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22h ago

Maker

📌

Hey I'm Jai and I'm one of the co-founders of CaratRank. Alex and I built this because we were engagement ring shopping for our girlfriends and we almost got fleeced multiple times. We realized that many retailers charge 10x wholesale prices for loose diamonds and diamond jewelry, and there is no real way to compare prices of a specific diamond across retailers. It's so bad that consumers just end up spending the premium! Many of these retailers obfuscate the diamonds they're selling, and they purposefully don't offer a way to search by the certificate/serial number each diamond is imprinted with to make it difficult to compare across websites. The few websites that exist to compare diamond prices actually take referral fees and are not unbiased, so they typically only show 1-2 retailers that they have financial arrangements with. We are the only way to search across 20+ retailers. Try us out, and see the price differential for yourself. We're free for searches, and if you want a few more features like diamond tracking, notifications for price drops, and advanced feature searches, you can use our paid option. Never overpay again!

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22h ago

Really exciting to see this launch. I remember the early conversations around making diamond pricing more transparent and easier to compare, and I’ve already used the tool to help a friend save about 60% on a diamond. Huge congrats to the team. This solves a real problem, and I’m excited to see where it goes.

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13m ago

Maker

I’m still shopping for my perfect stone and setting, and I’m adding features for lost partners shopping for their SOs (building for my own needs and many others just like me). My goal is that CaratRank becomes the one-stop tool to assure a shopper that they’re getting the best pricing and best specs on a diamond in the market. Let us know how we can better help you find your ideal diamond.

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12h ago

Highly recommend and helps the average buyer exercise some power against the various cartels out there

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11h ago