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Cushion|Natural|IGI

1.31ct K VS1 Cushion Natural Diamond

EX • K/VS1 • IGI 803680475

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 803680475

Diamond specifications and retailer prices

From £1,866 GBP
As of November 6, 2026
Save £1,775 GBP (49%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,642 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.31ct natural cushion diamond

This 1.31ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 803680475. Listed at 10 retailers as of November 4, 2026, with prices from £1,866 to £3,642, a £1,775 spread on the same certified stone. MOH London lists it at £3,642. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.1°
Pavilion angle37.6°
OriginNatural
Grading LabIGI
CertificateIGI 803680475
Dimensions7.45 × 5.72 × 3.89 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.45 mm5.72 mm1.31 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 803680475
Side View
Table 62.0%Crown 36.1°Girdle: THN-STKPavilion 37.6°CuletDepth 68.0%

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: £3,642 GBP|Low: £1,815 GBP|High: £3,696 GBP|Avg: £2,310 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£1,815 GBP
Retailer 6£1,866 GBP
Retailer 2£1,981 GBP
Retailer 7£2,047 GBP
Retailer 9£2,084 GBP
Retailer 4£2,232 GBP
Retailer 3£2,426 GBP
Retailer 5£2,544 GBP
MOH London£3,642 GBP

39 data points across 9 retailers

10 retailers£1,866 GBP to £3,642 GBP

Retailer 1
-
£1,815 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
£1,866 GBP
View
A
Retailer 3
-
£1,981 GBP
View
A
Retailer 4
-
£2,047 GBP
View
Retailer 5
-
£2,084 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£2,190 GBP
View
B+
Retailer 7
-
£2,232 GBP
View
B+
Retailer 8
-
£2,426 GBP
View
B+
Retailer 9
-
£2,544 GBP
View
Most Expensive
B
MOH London
841C36F3E · Nov 4
£3,642 GBP
View
9 more retailers have this diamond
Prices start from £1,866 GBPSave up to £1,775 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 Cushion
£1,866 GBP