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Cushion|Natural|GIA

0.40ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1565394507

Certificate GIA 1565394507

Diamond specifications and retailer prices

From $497 NZD
₹26,676 INR
As of November 2, 2026
Save $1,110 NZD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,607 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 J 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 1565394507. Listed at 12 retailers as of November 1, 2026, with prices from $497 to $1,607, a $1,110 spread on the same certified stone. MOH London lists it at $1,607. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565394507
Dimensions4.13 × 4.10 × 2.86 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
4.13 mm4.10 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565394507
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.7%

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: $1,607 NZD|Low: $496 NZD|High: $1,625 NZD|Avg: $1,013 NZD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2$497 NZD
Retailer 8$710 NZD
Retailer 9$749 NZD
Retailer 10$802 NZD
Retailer 4$908 NZD
Retailer 7$1,073 NZD
Retailer 6$1,078 NZD
Retailer 5$1,263 NZD
Retailer 3$1,407 NZD
MOH London$1,607 NZD

27 data points across 10 retailers

12 retailers$497 NZD to $1,607 NZD

A
Cheapest Retailer
-
$497 NZD
₹26,676 INR
B+
Retailer 2
-
$710 NZD
$400 USD
View
B+
Retailer 3
-
$749 NZD
$422 USD
View
B+
Retailer 4
-
$802 NZD
$452 USD
View
B+
Retailer 5
-
$908 NZD
£403 GBP
View
B
Retailer 6
-
$949 NZD
$535 USD
View
B
Retailer 7
-
$1,073 NZD
$605 USD
View
B
Retailer 8
-
$1,078 NZD
ZAR 9,816 ZAR
View
Retailer 9
-
$1,114 NZD
A$966 AUD
View
Price last confirmed 29 days ago
B
Retailer 10
-
$1,263 NZD
€678 EUR
View
B
Retailer 11
-
$1,407 NZD
£624 GBP
View
Most Expensive
B
MOH London
770D10AF9 · Nov 1
$1,607 NZD
£713 GBP
View
11 more retailers have this diamond
Prices start from $497 NZDSave up to $1,110 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
$497 NZD