The Carat Standard

Diamond Academy

A practical, independent diamond education curriculum covering reports, cut, clarity, color, settings, buying, and ownership.

  1. What a diamond actually is

    Carbon, crystal structure, light, and the difference between hardness and toughness.

  2. Natural and laboratory-grown

    The same gem material, formed by different routes—and why clear origin language matters.

  3. The four Cs, without the shorthand

    Cut, color, clarity, and carat are a shared language—not a recipe for one perfect diamond.

  4. What a grading report does—and does not do

    How to read identity, quality, proportions, comments, and laboratory limits in the right order.

  5. GIA, IGI, and the laboratory landscape

    How the major report issuers differ—and how to compare the document in front of you without relying on reputation alone.

  6. How to look at a diamond

    A disciplined viewing method for separating first impressions from useful evidence.

  7. How proportions shape light

    Table, crown, pavilion, depth, girdle, and facet relationships—read as one optical composition.

  8. Shape, size, and face-up presence

    Why equal carat weights can look different—and how outline, ratio, and facet style create personality.

  9. Clarity, without overbuying

    What the laboratory records, what the eye notices, and when an inclusion deserves a structural check.

  10. Color, in context

    How shape, size, metal, and viewing position change what a D-to-Z grade looks like in a finished ring.

  11. Fluorescence, without the folklore

    What ultraviolet light can reveal, when it affects appearance, and why the report line is not a verdict.

  12. Beyond the cut grade

    Why one laboratory label can contain many proportion sets, patterns, and visual personalities.

  13. Reading proportion combinations

    How crown, pavilion, table, depth, minor facets, and girdle work as one optical system.

  14. ASET, Ideal-Scope, and light-performance imaging

    What reflector colors can show, what they cannot, and how to read images without turning them into scores.

  15. Inclusions at the expert level

    How type, position, relief, extent, and surface reach matter more than an alarming name.

  16. When a diamond looks sleepy

    How to distinguish ordinary dirt or lighting from reduced transparency and low-contrast performance.

  17. The setting as architecture

    Solitaire, halo, bezel, pavé, cathedral, and three-stone designs considered through daily life.

  18. Prongs, protection, and maintenance

    Four or six, round or claw, exposed or guarded: the small metal decisions that secure a stone.

  19. Precious metals: 10k, 14k, 18k gold vs. platinum

    Purity, density, color, wear patterns, and skin sensitivity compared for long-term wear.

  20. Where to buy and how to buy a diamond

    Online sellers, independent jewelers, and established design houses compared by selection, pricing, inspection, and aftercare.

  21. A more considered purchase

    A calm sequence for comparing the stone, the setting, the seller’s terms, and the questions paper cannot answer.

  22. The policy behind the piece

    Homeowners, renters, scheduled coverage, and specialist jewelry policies—compared by what they promise.

  23. The appraisal, in its proper place

    Why a grading report is not a valuation, why purpose changes value, and what a credible document should explain.

  24. Care that protects the piece

    A practical routine for cleaning, inspecting, storing, and knowing when to stop wearing the ring.

  25. The nonlinear economics of diamond pricing

    Why small changes in weight or grade can produce much larger changes in asking price.