Permanent Gemstone Record
3.90 ct Fire Opal — Oval Modified Brilliant Cut
$1,495.00
Collector Evaluation
The Otzera 50
Distinguished
Otzera Classification
The Otzera 50 organizes professional gemstone evaluation into a single transparent framework, scored relative to what is achievable within this species. It reflects the qualities that make an individual stone worth collecting.
Identity
Gemological Summary
Disclosure
Origin & Treatment
Expert Curation
Why Otzera Selected It
Warm orange color gives this 3.90 ct natural Mexican fire opal an immediate presence. Its oval modified brilliant cut brings flashes of light across the face, while a faint play-of-color appears in direct sunlight—a subtle extra detail to discover as you turn the stone. With a generous 13.06 mm length, it is an inviting choice for an opal collection or a distinctive pendant.
Visual Record
Media Archive
Ownership
Care & Handling
Clean gently with a soft cloth and lukewarm water. Protect from hard knocks, high heat and sudden temperature changes; avoid steam and ultrasonic cleaning.
A permanent record of this exact gemstone
This Digital Passport is tied to OTZ-2026-01760 and remains accessible after the gemstone leaves available Otzera inventory. The QR code on the case always resolves to this canonical record rather than to a temporary sales page.
The Otzera 50 is a founder-led, species-relative collector rating. It is not a laboratory grade, appraisal, price guarantee, investment representation or universal ranking across all gemstones. Identity, treatment, origin evidence, laboratory documentation and condition are disclosed separately where applicable.