A diamond grading program

The art of reading a diamond.

Twelve filmed modules on the full body of diamond grading knowledge — from formation to the grading report — taught on camera by Kristina Tasceken: certified diamond grader, Dubai jewelry designer, and an active buyer of natural and laboratory-grown stones. Learn to grade, price, spot treatments and imitations, and understand how the trade actually works.

Join the waitlist See the curriculum
Loose diamonds in round, pear, heart, princess and radiant cuts on a black tray

12

Modules, formation to report

15–25

Minutes per lesson

5

Modules under the microscope

1

Certificate of completion

The difference

A certificate course tells you the grade. The trade tells you the price.

Four round brilliant diamonds

From inside the trade

Kristina buys stones for her own collections. Every module is taught the way it is used at the buying desk — which grades move the price, which don’t, and where a report can quietly mislead.

Objective lenses of a microscope

Real stones, original footage

Filmed in her atelier with a gemological microscope camera. Clarity, cut, treatments and the final grading are shown on actual stones, not on diagrams copied from a course book.

Historic photograph of nine cut diamonds of different shapes

A working expert at the end

Grade a stone start to finish, price it against the market, separate natural from laboratory-grown and treated from untreated — and read a laboratory report the way a dealer does.

Curriculum

Twelve modules. Four to six lessons each.

  1. 01Where diamonds come from
  2. 02From rough to polished
  3. 03Carat, weight, and the price steps
  4. 04Colour, from D to Z and beyond
  5. 05Fluorescence
  6. 06ClarityMicroscope
  7. 07Cut, proportions, and lightMicroscope
  8. 08Polish, symmetry, and fancy shapesMicroscope
  9. 09Imitations and simulants
  10. 10Treatments: laser drilling, fracture filling, irradiation, HPHT, coatingMicroscope
  11. 11Laboratory-grown diamonds
  12. 12Grading a stone start to finishMicroscope

Recorded program with quizzes and a certificate of completion. Live eight-week cohorts follow in 2027.

Six round brilliant diamonds in a row on a dark reflective surface
A single brilliant-cut diamond lit against black
A round brilliant diamond, face up
Portrait of Kristina
About

Kristina Tasceken

A jewelry designer based in Dubai with her own collections, a certified diamond grader, and a working buyer of natural and laboratory-grown stones. She learned grading from the institutes and pricing from the dealers — and has spent years reconciling the two at the buying desk.

This program is the course she wished had existed when she started: the full body of grading knowledge, taught by someone who has to be right about a stone before she pays for it.

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“A grading report tells you what a stone is. It never tells you what it is worth. That is the part I teach.”
Kristina Tasceken
Waitlist

Be the first to know when enrolment opens.

Waitlist members receive early-bird pricing before the public launch, a free mini-course — how to spot a fake or laboratory-grown stone in five minutes — and one letter a month while filming continues. No noise.

Unsubscribe any time.
The app Coming soon

Facet & Form

A companion for gemologists and diamond experts. Facet & Form brings the tools and references of the buying desk to the bench — built by Kristina Tasceken for the professionals she works alongside every day.

Coming soon on theApp Store Coming soon onGoogle Play
The Facet & Form app: the Today screen with certificate check, valuation, trade and academy
Contact

Write to Kristina.

Questions about the program, corporate training for your team, or press — replies come from Kristina herself, usually within two working days.

Email
hello@kristinatasceken.com
Instagram
@kristinatasceken
Atelier
Dubai, United Arab Emirates