CaratRank is a specialized comparison engine designed specifically for the diamond market, aiming to introduce transparency into an industry notorious for high and opaque markups. By aggregating data from over 20 different diamond retailers, the platform allows users to find the absolute lowest price for a specific stone. What makes CaratRank unique is its ability to search not just by general style or carat weight, but by the exact IGI, GIA, or GCAL certificate number. This guarantees that users are comparing the price of the exact same physical diamond across multiple storefronts. The tool operates on a strict model of independence and unbiased reporting. CaratRank explicitly states that they do not take referral fees, commissions, or paid placements from any of the retailers they list, ensuring the cheapest option is genuinely at the top of the search results. While basic searches are free (with an account), premium features like historical price tracking, 'fit scoring,' and automated price-drop alerts are available via a subscription or a one-time lifetime payment.

Pros of CaratRank

Allows searching by exact IGI, GIA, or GCAL certificate numbers to compare prices on the exact same physical stone.
Completely unbiased and independent; the platform does not accept affiliate commissions or paid placements from retailers.
Features automated price tracking and email alerts when a specific stone drops in price or is listed by a new seller.

Cons of CaratRank

Advanced features like price history, saved searches, and alerts require a paid upgrade ($19.99/mo or $40 lifetime).
Focuses strictly on the listed item price; users still need to independently verify final costs like taxes and shipping across different retailers.

Frequently Asked Questions

Can I search for a specific diamond I saw in a store?

Yes. If you have the IGI, GIA, or GCAL certificate number for the diamond, you can enter it into CaratRank to see if other online retailers are selling the exact same stone for less.

Does CaratRank get paid by the retailers they list?

No. CaratRank operates independently and explicitly states they do not take any referral fees, commissions, or paid placements to rank one seller above another.