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Cushion|Natural|GIA

0.40ct F SI2 Cushion Natural Diamond

VG • F/SI2 • GIA 6552834791

Certificate GIA 6552834791

Diamond specifications and retailer prices

From £361 GBP
$485 USD
As of November 1, 2026
Save £441 GBP (55%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £803 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552834791. Listed at 8 retailers as of November 1, 2026, with prices from £361 to £803, a £441 spread on the same certified stone. MOH London lists it at £803. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552834791
Dimensions4.37 × 4.19 × 2.77 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud
Top View
4.37 mm4.19 mm0.40 ctF / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552834791
Side View
Table 63.0%CrownGirdle: VTN-THKPavilionCulet: NoneDepth 66.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £803 GBP|Low: £313 GBP|High: £811 GBP|Avg: £465 GBP|+17.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 3£383 GBP
Retailer 7£411 GBP
Retailer 2£433 GBP
Retailer 6£453 GBP
Retailer 5£487 GBP
Retailer 4£535 GBP
MOH London£803 GBP

43 data points across 7 retailers

8 retailers£361 GBP to £803 GBP

A
Cheapest Retailer
-
£361 GBP
$485 USD
B+
Retailer 2
-
£383 GBP
$514 USD
View
B+
Retailer 3
-
£411 GBP
$551 USD
View
B+
Retailer 4
-
£433 GBP
View
B+
Retailer 5
-
£453 GBP
$608 USD
View
B
Retailer 6
-
£487 GBP
View
B
Retailer 7
-
£535 GBP
€684 EUR
View
Most Expensive
C
MOH London
6E5775DFA · Nov 2
£803 GBP
View
7 more retailers have this diamond
Prices start from £361 GBPSave up to £441 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.40ct Cushion
£361 GBP