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Marquise|Natural|GIA

0.40ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 7548870346

Certificate GIA 7548870346

Diamond specifications and retailer prices

From £227 GBP
As of November 6, 2026
Save £660 GBP (74%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,205 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 7548870346. Listed at 17 retailers as of November 5, 2026, with a 291% 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
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
OriginNatural
Grading LabGIA
CertificateGIA 7548870346
Dimensions7.07 × 3.85 × 2.49 mm
L/W Ratio1.84
Girdle conditionFaceted
Top View
7.07 mm3.85 mm0.40 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7548870346
Side View
Table 58.0%Crown 34.5°Girdle: MED-VTKPavilionCulet: NoneDepth 64.8%

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: £1,205 GBP|Low: £227 GBP|High: £1,205 GBP|Avg: £474 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 2£227 GBP
Retailer 9£266 GBP
Retailer 5£314 GBP
Retailer 12£327 GBP
Retailer 11£331 GBP
Retailer 17£339 GBP
Retailer 7£363 GBP
Retailer 13£389 GBP
Retailer 4£430 GBP
Retailer 8£430 GBP
Retailer 16£430 GBP
Retailer 6£458 GBP
Retailer 15£477 GBP
Retailer 10£632 GBP
Retailer 14£724 GBP
Retailer 3£886 GBP
NZ Jewellers£1,205 GBP

33 data points across 17 retailers

17 retailers£227 GBP to £886 GBP

A
Cheapest Retailer
-
£227 GBP
A
Retailer 2
-
£266 GBP
View
A
Retailer 3
-
£314 GBP
View
A
Retailer 4
-
£327 GBP
View
A
Retailer 5
-
£331 GBP
View
A
Retailer 6
-
£339 GBP
View
B+
Retailer 7
-
£363 GBP
View
B+
Retailer 8
-
£389 GBP
View
B+
Retailer 9
-
£430 GBP
View
B+
Retailer 10
-
£430 GBP
View
B+
Retailer 11
-
£430 GBP
View
B+
Retailer 12
-
£458 GBP
View
B
Retailer 13
-
£477 GBP
View
B
Retailer 14
-
£632 GBP
View
B
Retailer 15
-
£724 GBP
View
B
Retailer 16
-
£886 GBP
View
Most Expensive
NZ Jewellers
390608f2-b067-4d82-8fee-a298a3bc121c · Nov 5
£1,205 GBP
$1,622 USD
View
Price under review
16 more retailers have this diamond
Prices start from £227 GBPSave up to £660 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
£227 GBP