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Marquise|Natural|IGI

0.40ct E SI2 Marquise Natural Diamond

VG • E/SI2 • IGI 729536693

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 729536693

Diamond specifications and retailer prices

From £299 GBP
As of November 5, 2026
Save £389 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,143 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 very-good cut grade and certified by IGI 729536693. Listed at 13 retailers as of November 4, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 729536693
Dimensions6.93 × 3.83 × 2.47 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Top View
6.93 mm3.83 mm0.40 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 729536693
Side View
Table 61.0%Crown 36°Girdle: ThickPavilion 41.5°Culet: NoneDepth 64.5%

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 5
Current: £1,143 GBP|Low: £286 GBP|High: £1,143 GBP|Avg: £439 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
November 4, 2026
Retailer 5£298 GBP
Retailer 14£299 GBP
Retailer 9£305 GBP
Retailer 4£321 GBP
Retailer 10£321 GBP
Retailer 13£344 GBP
Retailer 3£395 GBP
Retailer 8£409 GBP
Retailer 11£415 GBP
Retailer 12£415 GBP
Retailer 6£415 GBP
Retailer 7£540 GBP
Retailer 2£687 GBP
NZ Jewellers£1,143 GBP

28 data points across 14 retailers

13 retailers£299 GBP to £687 GBP

A
Cheapest Retailer
-
£299 GBP
Retailer 2
-
£305 GBP
View
Price last confirmed 16 days ago
Retailer 3
-
£321 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£321 GBP
View
B+
Retailer 5
-
£344 GBP
View
Retailer 6
-
£371 GBP
View
Price last confirmed 61 days ago
B
Retailer 7
-
£395 GBP
View
B+
Retailer 8
-
£409 GBP
View
B
Retailer 9
-
£415 GBP
View
B
Retailer 10
-
£415 GBP
View
B
Retailer 11
-
£540 GBP
View
B
Retailer 12
-
£687 GBP
View
Most Expensive
NZ Jewellers
39f35913-8a09-4077-b82e-c1936489b08d · Nov 5
£1,143 GBP
$1,539 USD
View
Price under review
12 more retailers have this diamond
Prices start from £299 GBPSave up to £389 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
£299 GBP