CaratHunter
Plans
Cushion|Natural|GIA

0.40ct D SI1 Cushion Natural Diamond

D/SI1 • GIA 7531641130

Certificate GIA 7531641130

Diamond specifications and retailer prices

From £605 GBP
$810 USD
As of October 30, 2026
Save £566 GBP (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,171 GBP at MOH London · As of October 25, 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 25, 2026, with prices from £605 to £1,171, a £566 spread on the same certified stone. MOH London lists it at £1,171. 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: £1,171 GBP|Low: £506 GBP|High: £1,195 GBP|Avg: £782 GBP|+15.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8£506 GBP
Retailer 6£605 GBP
Retailer 10£627 GBP
Retailer 7£642 GBP
Retailer 4£694 GBP
Retailer 2£721 GBP
Retailer 9£769 GBP
Retailer 3£785 GBP
Retailer 5£1,128 GBP
MOH London£1,171 GBP

34 data points across 10 retailers

9 retailers£605 GBP to £1,171 GBP

Retailer 1
-
£506 GBP
$678 USD
Price last confirmed 16 days ago
B
Retailer 2
-
£605 GBP
$810 USD
View
B
Retailer 3
-
£642 GBP
$860 USD
View
B
Retailer 4
-
£694 GBP
View
B
Retailer 5
-
£721 GBP
€920 EUR
View
Retailer 6
-
£769 GBP
A$1,585 AUD
View
Price last confirmed 28 days ago
B
Retailer 7
-
£785 GBP
ZAR 16,994 ZAR
View
C
Retailer 8
-
£1,128 GBP
View
Most Expensive
C
MOH London
1A1A2B1AD · Oct 25
£1,171 GBP
View
8 more retailers have this diamond
Prices start from £605 GBPSave up to £566 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.

B
0.40ct Cushion
£605 GBP