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Cushion|Natural|GIA

0.40ct F SI1 Cushion Natural Diamond

F/SI1 • GIA 6472857706

Certificate GIA 6472857706

Diamond specifications and retailer prices

From £400 GBP
SGD 726 SGD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £400 GBP at Fonder Diamond
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Fonder Diamond

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 6472857706. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
F
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6472857706
Dimensions4.22 × 4.14 × 2.65 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
4.22 mm4.14 mm0.40 ctF / SI1
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6472857706
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCuletDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £400 GBP|Low: £400 GBP|High: £403 GBP|Avg: £402 GBP|-0.3%
October 13, 2026
Fonder Diamond£400 GBP

4 data points across 1 retailer

1 retailer

B+
Fonder Diamond
73704107 · Oct 31
£400 GBP
SGD 726 SGD
View

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B+
0.40ct Cushion
£400 GBP