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Cushion|Natural|GIA

0.40ct D SI1 Cushion Natural Diamond

D/SI1 • GIA 7531641130

Certificate GIA 7531641130

Diamond specifications and retailer prices

From $1,154 AUD
$810 USD
As of October 30, 2026
Save $1,077 AUD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,231 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 D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 7531641130. Listed at 9 retailers as of October 30, 2026, with prices from $1,154 to $2,231, a $1,077 spread on the same certified stone. MOH London lists it at $2,231. 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
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7531641130
Dimensions6.48 × 3.94 × 1.82 mm
L/W Ratio1.64
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.48 mm3.94 mm0.40 ctD / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7531641130
Side View
Table 56.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 46.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,231 AUD|Low: $965 AUD|High: $2,280 AUD|Avg: $1,490 AUD|+15.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8$965 AUD
Retailer 6$1,154 AUD
Retailer 10$1,196 AUD
Retailer 7$1,224 AUD
Retailer 4$1,324 AUD
Retailer 2$1,375 AUD
Retailer 9$1,467 AUD
Retailer 3$1,498 AUD
Retailer 5$2,151 AUD
MOH London$2,231 AUD

35 data points across 10 retailers

9 retailers$1,154 AUD to $2,231 AUD

Retailer 1
-
$965 AUD
$678 USD
Price last confirmed 16 days ago
B
Retailer 2
-
$1,154 AUD
$810 USD
View
B
Retailer 3
-
$1,224 AUD
$860 USD
View
B
Retailer 4
-
$1,324 AUD
£732 GBP
View
B
Retailer 5
-
$1,375 AUD
€920 EUR
View
Retailer 6
-
$1,467 AUD
View
Price last confirmed 28 days ago
B
Retailer 7
-
$1,498 AUD
ZAR 16,994 ZAR
View
C
Retailer 8
-
$2,151 AUD
£1,190 GBP
View
Most Expensive
C
MOH London
1A1A2B1AD · Nov 1
$2,231 AUD
£1,234 GBP
View
8 more retailers have this diamond
Prices start from $1,154 AUDSave up to $1,077 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.

B
0.40ct Cushion
$1,154 AUD