Every piece in our collection is personally examined, authenticated, and appraised by a trained gemologist — before it ever reaches you.
None are in the case right now — but with 30 years in Miami's diamond district, we have the network to find the right one.
Ask Our Concierge on WhatsAppInsurance, estate settlement, resale, or simple peace of mind — a written appraisal from a trained gemologist tells you exactly what you own and what it's worth.
Performed personally by Arkadius Bizak, trained at HRD Antwerp and the ERIJ Foundation with 30 years in the jewelry trade.
Bizak & Co. has been a family name in Miami's jewelry trade since 1996, based in the historic Seybold Building — the heart of the city's diamond district.
We built this business the old way: examine everything, describe it honestly, and stand behind every piece we sell. That doesn't change online.
Since 1996 · Miami · Seybold Building
In our family, gemology is not a job — it is an inheritance. Father, son, and grandson: each certified, each trained, each carrying the same name and the same standard.
Founder · Jeweler Since 1996
Certified Diamond Appraiser · Co-Founder
Third Generation
These courses are why a stone gets read the same way every time — and why what we tell you about a piece is what we actually found in it.