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Cushion|Natural|GIA

0.40ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 6555708682

Certificate GIA 6555708682

Diamond specifications and retailer prices

From €230 EUR
₹24,506 INR
As of October 31, 2026
Save €518 EUR (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €748 EUR 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6555708682. Listed at 8 retailers as of October 31, 2026, with prices from €230 to €748, a €518 spread on the same certified stone. MOH London lists it at €748. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6555708682
Dimensions4.19 × 4.17 × 2.77 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
4.19 mm4.17 mm0.40 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 6555708682
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.4%

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: Oct 31
Current: €748 EUR|Low: €230 EUR|High: €757 EUR|Avg: €472 EUR|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3€230 EUR
Retailer 5€348 EUR
Retailer 7€376 EUR
Retailer 2€420 EUR
Retailer 4€502 EUR
Retailer 8€519 EUR
Retailer 6€595 EUR
MOH London€748 EUR

36 data points across 8 retailers

8 retailers€230 EUR to €748 EUR

A
Cheapest Retailer
-
€230 EUR
₹24,506 INR
B+
Retailer 2
-
€373 EUR
$417 USD
View
B+
Retailer 3
-
€376 EUR
$420 USD
View
B
Retailer 4
-
€420 EUR
£370 GBP
View
B
Retailer 5
-
€502 EUR
ZAR 9,059 ZAR
View
Retailer 6
-
€519 EUR
A$891 AUD
View
Price last confirmed 29 days ago
B
Retailer 7
-
€595 EUR
View
Most Expensive
C
MOH London
7E432E69D · Nov 1
€748 EUR
£658 GBP
View
7 more retailers have this diamond
Prices start from €230 EURSave up to €518 EUR

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
€230 EUR