Intrinsix

Max rational bid, gold & gems

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Live gold, silver and platinum spot. Real fees and import taxes. One number: the most you should bid on a jewellery lot. Now with loose-stone lots. Intrinsix answers one question before you bid on jewellery at auction: what is the most I should rationally pay? Paste a Catawiki lot link and Intrinsix pre-fills the specs (Pro uses AI extraction; you always confirm every value). Or enter any lot by hand, including loose diamonds and gemstones with no metal at all. THE ENGINE • Metal priced at the live spot (gold, silver, platinum) × purity × net weight • Stones at your wholesale €/ct, with an estimator to get you close • Every real cost layered in: buyer fee, VAT on fees, import VAT and duty for non-EU sellers, shipping • A margin of safety you control WHAT YOU GET • The maximum rational bid — one headline number • A five-tier value ladder from intrinsic melt to new-retail fantasy • Red flags to review before you commit • BID / PASS verdict against the current bid • A watchlist to track lots you're stalking WHAT INTRINSIX IS NOT It is not an appraisal and it never invents prices. Every number traces to your inputs or the live spot. The seller's "retail estimate" is the inflated top of the ladder, Intrinsix exists so you never bid against it. Intrinsix Pro (monthly subscription) adds AI lot extraction after one free analysis. Terms: https://gcentelles.github.io/intrinsix-legal/terms.html Privacy: https://gcentelles.github.io/intrinsix-legal/privacy.html

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The developer, Guillermo Centelles, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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Information

Seller
  • Guillermo Centelles
Size
  • 43.8 MB
Category
  • Shopping
Compatibility
Requires iOS 16.4 or later.
  • iPhone
    Requires iOS 16.4 or later.
  • iPad
    Requires iPadOS 16.4 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Guillermo Centelles
  • Privacy Policy