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Cushion|Natural|GIA

0.40ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6552636084

Certificate GIA 6552636084

Diamond specifications and retailer prices

From $529 SGD
$414 USD
As of October 29, 2026
Save $607 SGD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,137 SGD 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552636084. Listed at 9 retailers as of October 29, 2026, with prices from $529 to $1,137, a $607 spread on the same certified stone. MOH London lists it at $1,137. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6552636084
Dimensions5.02 × 4.03 × 2.64 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cavity
Top View
5.02 mm4.03 mm0.40 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6552636084
Side View
Table 66.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 65.6%

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: Oct 29
Current: $1,137 SGD|Low: $529 SGD|High: $1,181 SGD|Avg: $758 SGD|-3.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$529 SGD
Retailer 7$568 SGD
Retailer 8$569 SGD
Retailer 4$636 SGD
Retailer 2$674 SGD
Retailer 5$763 SGD
Retailer 9$805 SGD
Retailer 3$897 SGD
MOH London$1,137 SGD

43 data points across 9 retailers

9 retailers$529 SGD to $1,137 SGD

A
Cheapest Retailer
-
$529 SGD
$414 USD
A
Retailer 2
-
$568 SGD
$444 USD
View
A
Retailer 3
-
$569 SGD
$445 USD
View
A
Retailer 4
-
$636 SGD
£392 GBP
View
A
Retailer 5
-
$674 SGD
£415 GBP
View
B+
Retailer 6
-
$763 SGD
ZAR 9,634 ZAR
View
Retailer 7
-
$805 SGD
A$968 AUD
View
Price last confirmed 30 days ago
B+
Retailer 8
-
$897 SGD
€668 EUR
View
Most Expensive
B
MOH London
BC35A9762 · Nov 2
$1,137 SGD
£700 GBP
View
8 more retailers have this diamond
Prices start from $529 SGDSave up to $607 SGD

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
$529 SGD