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Marquise|Natural|GIA

1.31ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 6552710159

Certificate GIA 6552710159

Diamond specifications and retailer prices

From £4,102 GBP
As of November 6, 2026
Save £3,566 GBP (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £7,667 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.31ct natural marquise diamond

This 1.31ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D 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 6552710159. Listed at 8 retailers as of November 2, 2026, with prices from £4,102 to £7,667, a £3,566 spread on the same certified stone. MOH London lists it at £7,667. 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

1.31
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552710159
Dimensions11.46 × 5.70 × 3.40 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Needle
Top View
11.46 mm5.70 mm1.31 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552710159
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £7,667 GBP|Low: £4,102 GBP|High: £7,760 GBP|Avg: £5,490 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2£4,102 GBP
Retailer 3£4,389 GBP
Retailer 6£4,798 GBP
Retailer 7£4,820 GBP
Retailer 4£5,136 GBP
Retailer 5£5,986 GBP
MOH London£7,667 GBP

40 data points across 7 retailers

8 retailers£4,102 GBP to £7,667 GBP

A
Cheapest Retailer
-
£4,102 GBP
A
Retailer 2
-
£4,389 GBP
View
Final sale: no returns
A
Retailer 3
-
£4,798 GBP
View
A
Retailer 4
-
£4,820 GBP
View
A
Retailer 5
-
£5,136 GBP
View
B+
Retailer 6
-
£5,623 GBP
View
B+
Retailer 7
-
£5,986 GBP
View
Most Expensive
B
MOH London
CEFBA1BCA · Nov 2
£7,667 GBP
View
7 more retailers have this diamond
Prices start from £4,102 GBPSave up to £3,566 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
1.31ct Marquise
£4,102 GBP