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Cushion|Natural|GIA

0.40ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6555182513

Certificate GIA 6555182513

Diamond specifications and retailer prices

From $772 NZD
As of November 6, 2026
Save $1,684 NZD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,456 NZD at MOH London · As of November 4, 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 E 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 6555182513. Listed at 10 retailers as of November 4, 2026, with prices from $772 to $2,456, a $1,684 spread on the same certified stone. MOH London lists it at $2,456. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555182513
Dimensions4.14 × 4.08 × 2.82 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud
Top View
4.14 mm4.08 mm0.40 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555182513
Side View
Table 63.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 69.2%

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 6
Current: $2,456 NZD|Low: $772 NZD|High: $2,488 NZD|Avg: $1,523 NZD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$772 NZD
Retailer 4$1,286 NZD
Retailer 6$1,407 NZD
Retailer 7$1,458 NZD
Retailer 3$1,566 NZD
Retailer 8$1,600 NZD
Retailer 5$1,651 NZD
MOH London$2,456 NZD

37 data points across 8 retailers

10 retailers$772 NZD to $2,456 NZD

A
Cheapest Retailer
-
$772 NZD
B+
Retailer 2
-
$1,228 NZD
View
B+
Retailer 3
-
$1,270 NZD
View
B+
Retailer 4
-
$1,286 NZD
View
B+
Retailer 5
-
$1,407 NZD
View
B+
Retailer 6
-
$1,458 NZD
View
B+
Retailer 7
-
$1,566 NZD
View
Retailer 8
-
$1,600 NZD
View
Price last confirmed 34 days ago
B+
Retailer 9
-
$1,651 NZD
View
Most Expensive
B
MOH London
238577F87 · Nov 4
$2,456 NZD
£1,072 GBP
View
9 more retailers have this diamond
Prices start from $772 NZDSave up to $1,684 NZD

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
$772 NZD