Diamantordliste
Vigtige begreber og definitioner fra diamanternes verden
Annealing
Heat treatment applied after irradiation to stabilise or further modify a diamond’s colour.
Læs mereAsscher Cut
A square step cut with cropped corners, known for its distinctive hall-of-mirrors optical effect.
Læs mereBaguette
En rektangulær trappeformet slibning, ofte brugt som accentsten.
Lunette-fatning (bezel)
En fatning, hvor en metalrand omgiver hele stenens omkreds.
Cape Diamond
A diamond with a yellowish tint caused by nitrogen impurities (N3 centre at 415.5 nm).
Læs mereKatedral-fatning
En høj fatning med bueformede skuldre, der minder om en katedral.
Clarity Characteristics
Internal and external features (inclusions and blemishes) used to determine a diamond’s clarity grade.
Læs mereCoating
A surface treatment that applies a thin layer to alter a diamond’s apparent colour; not permanent.
Læs mereCrown Angle
The angle between the bezel (crown main) facets and the girdle plane, influencing the balance of fire and brilliance.
Læs mereCVD
Chemical Vapor Deposition — en metode til fremstilling af laboratoriedyrkede diamanter.
Læs mereDepth Percentage
The total height of a diamond divided by its average girdle diameter, expressed as a percentage.
Læs mereDiamond Grading Report
A document issued by a gemological laboratory detailing a diamond’s 4Cs, measurements, and identifying characteristics.
Læs mereFancy Vivid
The highest colour saturation grade for fancy coloured diamonds, indicating the most intense and pure colour.
Læs mereFluorescence Grades
The five-point scale used to describe fluorescence intensity: None, Faint, Medium, Strong, and Very Strong.
Læs mereFracture Filling
A clarity treatment in which a glass-like substance is injected into surface-reaching fractures to reduce their visibility.
Læs mereFTIR
Fourier-transform infrared spectroscopy, used to classify diamond type (I/II) and detect certain treatments.
Læs mereVurdering (grading)
Systematisk bedømmelse af diamantkvalitet efter standardiserede kriterier.
Læs mereHPHT
High Pressure High Temperature — en metode til behandling og fremstilling af diamanter.
Læs mereHue
The dominant spectral colour of a fancy coloured diamond, such as blue, pink, or yellow.
Læs mereIrradiation
A treatment using electron or neutron bombardment to alter a diamond’s colour, often followed by annealing.
Læs mereKarat (guld)
Mål for guldrenhed (24 kt = rent guld). Forveksles ikke med diamantkarat.
Kimberleyprocessen
Internationalt certificeringssystem, der forhindrer handel med konfliktdiamanter.
Læs mereLaser Drilling
A clarity treatment that uses a focused laser beam to create a channel to reach and bleach dark inclusions.
Læs mereLaser Inscription
A micro-engraving on the girdle of a diamond, typically the laboratory report number, used for identification.
Læs mereMeasurements (mm)
The length, width, and depth of a diamond recorded in millimetres on a grading report.
Læs mereMelee
Små diamanter (under 0,2 ct), ofte brugt som accentsten.
Milky Diamond
A diamond with reduced transparency caused by sub-microscopic inclusions or structural irregularities.
Læs mereOverweight Diamond
A diamond cut deeper than ideal proportions to retain carat weight, resulting in a smaller face-up appearance.
Læs merePavilon
Den nedre del af diamanten under rundisten — reflekterer lys tilbage gennem kronen.
Læs merePavilion Angle
The angle between the pavilion main facets and the girdle plane, critical for light return and brilliance.
Læs merePhotoluminescence (PL)
A spectroscopic technique using laser excitation to identify defect centres and detect treatments in diamonds.
Læs merePlot
A diagram on a grading report that maps the location and type of a diamond’s clarity characteristics.
Læs merePolish
The quality of a diamond’s surface smoothness resulting from the cutting and polishing process.
Læs mereProportions Diagram
A profile view on a grading report showing key angles, percentages, and measurements of a diamond’s cut.
Læs mereSaturation
The intensity or purity of a fancy diamond’s colour, ranging from weak to vivid.
Læs mereSpread
The face-up size of a diamond relative to its carat weight; a well-spread stone looks larger for its weight.
Læs mereStrain Patterns
Internal stress features visible under cross-polarised light; their character differs between natural and lab-grown diamonds.
Læs mereTable Percentage
The width of the table facet divided by the average girdle diameter, expressed as a percentage.
Læs mereSpændfattning
En sten holdt af metalarmenes tryk — ser ud til at svæve.
Tone
The lightness or darkness of a fancy coloured diamond’s colour, ranging from very light to very dark.
Læs mereType I / Type II
Scientific classification of diamonds based on nitrogen content and arrangement; Type I contains nitrogen, Type II is virtually nitrogen-free.
Læs mereUV-Vis-NIR
Ultraviolet-visible-near infrared spectroscopy, used to analyse colour origin and detect treatments in diamonds.
Læs mereVVS klarhed
Very Very Slightly Included — minimale inklusioner, svært synlige under 10× lup.
Læs mereVindueseffekt
Et mørkt område i centret af en dårligt slebet sten, hvor lyset „siver igennem".
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