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Marquise|Natural|GIA

0.40ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 1567350181

Certificate GIA 1567350181

Diamond specifications and retailer prices

From £221 GBP
As of November 6, 2026
Save £489 GBP (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,181 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567350181. Listed at 9 retailers as of November 4, 2026, with a 221% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1567350181
Dimensions8.20 × 3.73 × 2.25 mm
L/W Ratio2.20
Girdle conditionMedium to Thick
Key to symbols
Cloud, Feather
Top View
8.20 mm3.73 mm0.40 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567350181
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.2%

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 6
Current: £1,181 GBP|Low: £218 GBP|High: £1,253 GBP|Avg: £512 GBP|-5.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£221 GBP
Retailer 9£266 GBP
Retailer 8£308 GBP
Retailer 4£325 GBP
Retailer 7£332 GBP
Retailer 5£493 GBP
Retailer 3£620 GBP
Retailer 6£710 GBP
NZ Jewellers£1,181 GBP

29 data points across 9 retailers

9 retailers£221 GBP to £710 GBP

A
Cheapest Retailer
-
£221 GBP
A
Retailer 2
-
£266 GBP
View
A
Retailer 3
-
£308 GBP
View
A
Retailer 4
-
£325 GBP
View
A
Retailer 5
-
£332 GBP
View
B+
Retailer 6
-
£493 GBP
View
B
Retailer 7
-
£620 GBP
View
B
Retailer 8
-
£710 GBP
View
Most Expensive
NZ Jewellers
dbd2c476-e478-4a81-92b5-a5deb8ec2004 · Nov 5
£1,181 GBP
$1,590 USD
View
Price under review
8 more retailers have this diamond
Prices start from £221 GBPSave up to £489 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.

A
0.40ct Marquise
£221 GBP