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Natural Diamonds - asscher

GIA, IGI and HRD certified diamonds with updated prices and instant comparison by carat and quality. 

0.30–0.49 ct 0.50–0.69 ct 0.70–0.89 ct 1 ct 1.50+ ct GIA IGI HRD
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  2. Symmetry
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Shape
Shape

shape

Carats
Carats

Carat is the weight unit for diamonds. 1.00 carat equals 0.20 grams

Color
Color

Colour

One of the fundamental 4Cs: the less colour a diamond has, the greater its value. The GIA scale runs from D (perfectly colourless) to Z (heavily tinted yellow).

diamond colour scale

D – GColourless or near-colourless — maximum value
H – JNear-colourless — excellent value for money
K – LFaint — slight tint perceptible
M – NVery light — tint visible to the naked eye
O – ZLight yellow — clearly visible colour

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Clarity
Clarity

Clarity

Measures the presence of internal inclusions or surface blemishes. The purer the diamond, the more light passes through it and the higher its value.

IF
IF — Internally flawless, no inclusions
VVS
VVS1 / VVS2 — Minute inclusions, very difficult to see even under high magnification
VS
VS1 / VS2 — Minor inclusions, difficult to see under 10x loupe, invisible to naked eye
SI1
SI1 — Inclusions detectable under 10x by expert, invisible to naked eye
SI2
SI2 — Inclusions sometimes visible to naked eye; we recommend case-by-case evaluation

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price
  1. £2,979.39 - £3,886.16 2 items
  2. £3,886.16 - £5,181.55 8 items
  3. £7,772.32 - £9,067.71 1 item
  4. £10,363.09 - £11,658.48 1 item
  5. £18,135.41 - £19,430.80 1 item
  6. £20,726.18 - £22,021.57 1 item
Certificate
Certificate

IGI, GIA and HRD are the most reliable certificates.

Polish
Polish

Polish

Describes the quality of finish on the outer surface of the diamond. A high grade maximises light reflection and brilliance.

Excellent (EX) — Perfectly smooth surface: maximum brilliance.
Very Good (VG) — Very good polish, with minor features visible only under a 10x loupe.
Good (G) — Small polishing marks visible under 10x, invisible to the naked eye.
  1. Excellent 14 items
  2. Very Good 0 items
  3. Good 0 items
  4. Fair 0 items
Symmetry
Symmetry

Symmetry

Evaluates how precisely the facets align and intersect. Minor asymmetries can affect light travel and brilliance. Excellent and Very Good are recommended.

Excellent — Perfect alignment of all facets.
Very Good — Very slight asymmetries, visible only under 10x magnification.
Good — Minor asymmetries visible under 10x loupe, not to the naked eye.
Fair / Poor — Noticeable asymmetries visible to the naked eye: not recommended.
  1. Excellent 14 items
  2. Very Good 3 items
  3. Good 0 items
  4. Fair 0 items
Fluorescence
Fluorescence

Fluorescence

About one third of natural diamonds emit a completely harmless bluish glow under UV light. Fluorescence rarely affects appearance; in very rare cases it may cause a slight milky effect.

None / Nil — No fluorescence present.
Very Slight / Slight — Very slight fluorescence, imperceptible under normal conditions.
Faint — Weak fluorescence, visible only under direct UV light.
Medium — Medium fluorescence under UV. No effect in daylight.
Strong / Very Strong — Strong fluorescence. Looks normal in daylight; only rarely may appear slightly milky.
  1. None 12 items
  2. Faint 2 items
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