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Cushion|Natural|GIA

0.40ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6555183033

Certificate GIA 6555183033

Diamond specifications and retailer prices

From $538 NZD
₹28,859 INR
As of November 2, 2026
Save $1,186 NZD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,724 NZD at MOH London · As of November 1, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555183033. Listed at 10 retailers as of November 1, 2026, with prices from $538 to $1,724, a $1,186 spread on the same certified stone. MOH London lists it at $1,724. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6555183033
Dimensions4.14 × 4.12 × 2.84 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
4.14 mm4.12 mm0.40 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6555183033
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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 2
Current: $1,724 NZD|Low: $537 NZD|High: $1,746 NZD|Avg: $1,096 NZD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$538 NZD
Retailer 6$804 NZD
Retailer 4$925 NZD
Retailer 3$1,136 NZD
Retailer 5$1,158 NZD
Retailer 7$1,196 NZD
MOH London$1,724 NZD

37 data points across 7 retailers

10 retailers$538 NZD to $1,724 NZD

A
Cheapest Retailer
-
$538 NZD
₹28,859 INR
B+
Retailer 2
-
$804 NZD
$453 USD
View
B+
Retailer 3
-
$861 NZD
$485 USD
View
B+
Retailer 4
-
$862 NZD
$486 USD
View
B+
Retailer 5
-
$925 NZD
£411 GBP
View
B
Retailer 6
-
$994 NZD
$560 USD
View
B
Retailer 7
-
$1,136 NZD
€610 EUR
View
B+
Retailer 8
-
$1,158 NZD
ZAR 10,543 ZAR
View
Retailer 9
-
$1,196 NZD
A$1,037 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
6D4E087F6 · Nov 1
$1,724 NZD
£765 GBP
View
9 more retailers have this diamond
Prices start from $538 NZDSave up to $1,186 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
$538 NZD