Insurance, estate, and resale valuations by mail from a trained gemologist in the historic Seybold Building — the heart of Miami's diamond district, serving you anywhere in the U.S.
A written appraisal from a trained gemologist tells you exactly what you own and what it's worth — for insurance, for an estate, for resale, or simply for peace of mind. Every appraisal at Bizak & Co. is performed personally by Arkadius Bizak — three decades in Miami's jewelry trade since 1996, gemmologically trained at HRD Antwerp (AWDC) and the ERIJ Foundation.
You don't need to be in Miami, and we don't send your piece to a third party. Start with photos for a preliminary read, then mail it in with free insured shipping — it's examined, graded and documented by us in the Seybold Building, and returned to you fully insured.
Retail replacement value in writing, formatted for your insurer or a rider on your homeowner's policy.
Fair, documented valuations for probate, estate settlement, and dividing inherited jewelry.
An honest opinion of what a piece would realistically sell for today, before you negotiate.
Identification and grading of diamonds and colored stones — cut, color, clarity, carat, and origin.
Authentication and valuation of luxury and vintage timepieces, movement and condition assessed.
Simply want to know what you have? Send a few photos to start — no obligation to sell, ever.
Share photos and a few details through the form or WhatsApp. We give you a preliminary read and confirm a flat fee — no obligation.
Approve the fee and we send a prepaid, fully insured label. Ship from anywhere in the U.S.
Your piece is graded and authenticated by a trained gemologist in the Seybold Building.
You receive a signed appraisal for your insurer, attorney or buyer — and your piece back, fully insured.
Appraisal fees are a flat rate, quoted upfront, before we begin. They fall in line with the U.S. standard of roughly $65–$200 per piece depending on complexity, with luxury watches typically higher. You approve the fee first — there are never hidden costs, and there is never any pressure to sell.
Appraisal fees are a flat rate quoted upfront, before any work begins — typically in line with the U.S. standard of about $65 to $200 per piece depending on complexity, with no hidden costs. Watch appraisals are usually higher. We confirm your exact fee first.
Once your piece reaches us, most single pieces are examined and documented within one to two business days. Larger estates or complex pieces may take longer; we give you a timeline when it arrives.
An insurance appraisal states retail replacement value — what it would cost to replace the piece new — and is used for coverage. A resale or fair market valuation reflects what the piece would realistically sell for today. They are different numbers, and we tell you which one you need.
Not always, but an independent appraisal gives you an honest baseline of what you own before you negotiate, so you can sell with confidence rather than guessing.
Appraisals are performed personally by Arkadius Bizak — three decades in the Miami jewelry trade since 1996, with gemmological training including a 5-day HRD Antwerp (AWDC) course in ruby, sapphire and emerald (2023), plus diamond grading (2019) and gemmology (2022) courses in Poland.
Send the piece itself and any documents you have — prior appraisals, diamond certificates, receipts, or box and papers for watches. They help, but they are not required; we grade what we receive.
Tell us about your piece and we'll reply with next steps and a quote. No obligation to sell — ever.