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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 $366 AUD
₹24,506 INR
As of October 31, 2026
Save $823 AUD (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,190 AUD 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 $366 to $1,190, a $823 spread on the same certified stone. MOH London lists it at $1,190. 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: Oct 31
Current: $1,190 AUD|Low: $365 AUD|High: $1,204 AUD|Avg: $750 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3$366 AUD
Retailer 5$554 AUD
Retailer 7$598 AUD
Retailer 2$669 AUD
Retailer 4$798 AUD
Retailer 8$825 AUD
Retailer 6$946 AUD
MOH London$1,190 AUD

37 data points across 8 retailers

8 retailers$366 AUD to $1,190 AUD

A
Cheapest Retailer
-
$366 AUD
₹24,506 INR
B+
Retailer 2
-
$594 AUD
$417 USD
View
B+
Retailer 3
-
$598 AUD
$420 USD
View
B
Retailer 4
-
$669 AUD
£370 GBP
View
B
Retailer 5
-
$798 AUD
ZAR 9,059 ZAR
View
Retailer 6
-
$825 AUD
View
Price last confirmed 29 days ago
B
Retailer 7
-
$946 AUD
€633 EUR
View
Most Expensive
C
MOH London
7E432E69D · Nov 1
$1,190 AUD
£658 GBP
View
7 more retailers have this diamond
Prices start from $366 AUDSave up to $823 AUD

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
$366 AUD