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The Brand · Authenticity

Proof in Every Detail

Hallmarked metal, independently graded diamonds and a signed certificate of authenticity — so you know exactly what you own.

Verify a CertificateOur Materials
Diamond under a jeweler’s loupe beside a grading report
In Every Box

Your Documents

Everything you need for insurance, resale or simple peace of mind.

  • Certificate of Authenticity

    Signed by our atelier: metal, weight, stone details and a unique piece number.

  • Diamond Grading Report

    Independent lab report for center diamonds 0.30 ct and above — cut, color, clarity, carat.

  • Metal Hallmark

    Every piece is stamped with its karat or platinum purity and our maker’s mark.

  • Appraisal on Request

    A retail replacement valuation for your insurer, prepared free for orders over $1,000.

Close-up of a solitaire diamond ring under studio light
Laser Inscription

A Signature You Can’t See

Most graded center diamonds carry a microscopic laser inscription on the girdle that matches the report number. It’s invisible to the eye and never affects the stone’s beauty — but under a loupe, it ties your diamond to its paperwork forever.

  • Matches your grading report number
  • Visible only under 10× magnification
  • We’ll show it to you at any atelier visit
Reading Your Report

The 4Cs at a Glance

GradeWhat it measuresOur minimum
CutHow well facets return light — the source of sparkle.Very Good
ColorAbsence of color, from D (colorless) down the alphabet.H
ClarityTiny natural inclusions, graded under 10× magnification.SI1 · eye-clean
CaratWeight, not size. 1 carat = 0.2 grams.As listed

Lab-grown diamonds are graded on exactly the same scale and noted as lab-grown on the report.

Verify

Check a Certificate

Send us your piece number or report number and we’ll confirm the record against our atelier archive within one business day.

  • Confirms metal, stones and date of creation
  • Useful for gifts, insurance and resale
  • Replacement certificates issued free for original owners
Client Care

A Real Person, Always

Questions about a piece, an order or an idea? Our concierge replies to every message within one business day.

Contact Client Care Book an Appointment