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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 €229 EUR
₹24,493 INR
As of November 2, 2026
Save €516 EUR (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €745 EUR 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6555708682. Listed at 8 retailers as of November 2, 2026, with prices from €229 to €745, a €516 spread on the same certified stone. MOH London lists it at €745. 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
Colour
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: Nov 2
Current: €745 EUR|Low: €229 EUR|High: €754 EUR|Avg: €468 EUR|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2€229 EUR
Retailer 5€347 EUR
Retailer 7€374 EUR
Retailer 3€419 EUR
Retailer 4€500 EUR
Retailer 8€516 EUR
Retailer 6€593 EUR
MOH London€745 EUR

37 data points across 8 retailers

8 retailers€229 EUR to €745 EUR

A
Cheapest Retailer
-
€229 EUR
₹24,493 INR
B+
Retailer 2
-
€372 EUR
$417 USD
View
B+
Retailer 3
-
€374 EUR
$420 USD
View
B
Retailer 4
-
€419 EUR
£370 GBP
View
B
Retailer 5
-
€500 EUR
ZAR 9,059 ZAR
View
Retailer 6
-
€516 EUR
A$891 AUD
View
Price last confirmed 29 days ago
B
Retailer 7
-
€593 EUR
View
Most Expensive
C
MOH London
7E432E69D · Nov 2
€745 EUR
£658 GBP
View
7 more retailers have this diamond
Prices start from €229 EURSave up to €516 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
€229 EUR