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Cushion|Natural|GIA

0.40ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 3565213852

Certificate GIA 3565213852

Diamond specifications and retailer prices

From £202 GBP
₹25,822 INR
As of November 2, 2026
Save £452 GBP (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £654 GBP 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 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 3565213852. Listed at 14 retailers as of November 2, 2026, with prices from £202 to £654, a £452 spread on the same certified stone. MOH London lists it at £654. 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
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3565213852
Dimensions4.30 × 4.16 × 2.76 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Knot, Crystal
Top View
4.30 mm4.16 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 3565213852
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.2%

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 2
Current: £654 GBP|Low: £202 GBP|High: £662 GBP|Avg: £406 GBP|-1.1%
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£202 GBP
Retailer 10£238 GBP
Retailer 7£291 GBP
Retailer 8£328 GBP
Retailer 5£369 GBP
Retailer 6£439 GBP
Retailer 9£453 GBP
Retailer 4£462 GBP
Retailer 3£573 GBP
MOH London£654 GBP

36 data points across 10 retailers

14 retailers£202 GBP to £654 GBP

A
Cheapest Retailer
-
£202 GBP
₹25,822 INR
A
Retailer 2
-
£238 GBP
HK$2,500 HKD
View
B+
Retailer 3
-
£291 GBP
$390 USD
View
B+
Retailer 4
-
£297 GBP
SGD 539 SGD
View
B+
Retailer 5
-
£326 GBP
$438 USD
View
B+
Retailer 6
-
£328 GBP
$440 USD
View
B+
Retailer 7
-
£369 GBP
View
B
Retailer 8
-
£380 GBP
$511 USD
View
B
Retailer 9
-
£388 GBP
$521 USD
View
B
Retailer 10
-
£439 GBP
ZAR 9,513 ZAR
View
Retailer 11
-
£453 GBP
A$936 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
£462 GBP
€590 EUR
View
B
Retailer 13
-
£573 GBP
View
Most Expensive
B
MOH London
D7EE2C3E1 · Nov 2
£654 GBP
View
13 more retailers have this diamond
Prices start from £202 GBPSave up to £452 GBP

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
£202 GBP