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Cushion|Natural|GIA

0.40ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 5233524962

Certificate GIA 5233524962

Diamond specifications and retailer prices

From £485 GBP
$650 USD
As of October 30, 2026
Save £156 GBP (24%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £641 GBP at DreamStone · As of October 31, 2026
View at DreamStone

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5233524962. Listed at 8 retailers as of October 30, 2026, with prices from £485 to £641, a £156 spread on the same certified stone. DreamStone lists it at £641. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5233524962
Dimensions4.36 × 4.27 × 2.95 mm
L/W Ratio1.02
Top View
4.36 mm4.27 mm0.40 ctD / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5233524962
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £641 GBP|Low: £485 GBP|High: £724 GBP|Avg: £587 GBP
DreamStone
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 26, 2026
Retailer 4£485 GBP
Retailer 3£522 GBP
Retailer 5£535 GBP
Retailer 2£550 GBP
Retailer 7£597 GBP
Retailer 8£597 GBP
Retailer 6£612 GBP
DreamStone£641 GBP
Retailer 9£724 GBP

2 data points across 9 retailers

8 retailers£485 GBP to £641 GBP

B+
Cheapest Retailer
-
£485 GBP
$650 USD
B+
Retailer 2
-
£522 GBP
$699 USD
View
B
Retailer 3
-
£535 GBP
$717 USD
View
B
Retailer 4
-
£550 GBP
$737 USD
View
B
Retailer 5
-
£597 GBP
$800 USD
View
B
Retailer 6
-
£597 GBP
$800 USD
View
B
Retailer 7
-
£612 GBP
$820 USD
View
Most Expensive
B
DreamStone
21240 · Oct 31
£641 GBP
$859 USD
View
7 more retailers have this diamond
Prices start from £485 GBPSave up to £156 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
£485 GBP