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Marquise|Natural|GIA

0.40ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 1569276812

Certificate GIA 1569276812

Diamond specifications and retailer prices

From £260 GBP
$349 USD
As of November 2, 2026
Save £459 GBP (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £719 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1569276812. Listed at 10 retailers as of November 1, 2026, with prices from £260 to £719, a £459 spread on the same certified stone. MOH London lists it at £719. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle37.1°
Pavilion angle41.1°
OriginNatural
Grading LabGIA
CertificateGIA 1569276812
Dimensions7.18 × 3.84 × 2.50 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Top View
7.18 mm3.84 mm0.40 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1569276812
Side View
Table 59.0%Crown 37.1°Girdle: MED-VTKPavilion 41.1°Culet: NDepth 65.1%

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 2
Current: £719 GBP|Low: £260 GBP|High: £742 GBP|Avg: £436 GBP|-3.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7£260 GBP
Retailer 9£281 GBP
Retailer 11£296 GBP
Retailer 3£327 GBP
Retailer 8£365 GBP
Retailer 4£386 GBP
Retailer 6£426 GBP
Retailer 10£444 GBP
Retailer 5£483 GBP
Retailer 2£630 GBP
MOH London£719 GBP

26 data points across 11 retailers

10 retailers£260 GBP to £719 GBP

A
Cheapest Retailer
-
£260 GBP
$349 USD
Final sale: no returns
A
Retailer 2
-
£281 GBP
$377 USD
View
B+
Retailer 3
-
£296 GBP
HK$3,100 HKD
View
B
Retailer 4
-
£365 GBP
$489 USD
View
B
Retailer 5
-
£386 GBP
View
B
Retailer 6
-
£426 GBP
€543 EUR
View
B
Retailer 7
-
£444 GBP
$595 USD
View
B
Retailer 8
-
£483 GBP
ZAR 10,454 ZAR
View
B
Retailer 9
-
£630 GBP
View
Most Expensive
B
MOH London
51705BCDF · Nov 1
£719 GBP
View
9 more retailers have this diamond
Prices start from £260 GBPSave up to £459 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
£260 GBP