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Cushion|Natural|GIA

0.40ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 2556005164

Certificate GIA 2556005164

Diamond specifications and retailer prices

From $413 USD
As of November 6, 2026
Save $499 USD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $912 USD 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556005164. Listed at 10 retailers as of November 2, 2026, with prices from $413 to $912, a $499 spread on the same certified stone. MOH London lists it at $912. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556005164
Dimensions5.19 × 3.84 × 2.64 mm
L/W Ratio1.35
Top View
5.19 mm3.84 mm0.40 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556005164
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.9%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $912 USD|Low: $413 USD|High: $923 USD|Avg: $656 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$413 USD
Retailer 7$425 USD
Retailer 5$510 USD
Retailer 6$541 USD
Retailer 3$711 USD
Retailer 2$794 USD
MOH London$912 USD

42 data points across 7 retailers

10 retailers$413 USD to $912 USD

A
Cheapest Retailer
-
$413 USD
Retailer 2
-
$425 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$456 USD
View
B+
Retailer 4
-
$510 USD
View
B+
Retailer 5
-
$525 USD
View
B+
Retailer 6
-
$539 USD
View
B+
Retailer 7
-
$541 USD
View
B
Retailer 8
-
$711 USD
View
B
Retailer 9
-
$794 USD
View
Most Expensive
B
MOH London
1BBD7995A · Nov 2
$912 USD
£718 GBP
View
9 more retailers have this diamond
Prices start from $413 USDSave up to $499 USD

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
$413 USD