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Cushion|Natural|IGI

1.35ct D SI1 Cushion Natural Diamond

VG • D/SI1 • IGI 799678562

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 799678562

Diamond specifications and retailer prices

From £2,674 GBP
As of November 6, 2026
Save £2,667 GBP (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,341 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.35ct natural cushion diamond

This 1.35ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 799678562. Listed at 9 retailers as of November 2, 2026, with prices from £2,674 to £5,341, a £2,667 spread on the same certified stone. MOH London lists it at £5,341. 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

1.35
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle39.8°
Pavilion angle35.4°
OriginNatural
Grading LabIGI
CertificateIGI 799678562
Dimensions8.14 × 5.29 × 3.63 mm
L/W Ratio1.54
Girdle conditionFaceted
Top View
8.14 mm5.29 mm1.35 ctD / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 799678562
Side View
Table 64.0%Crown 39.8°Girdle: STK-ETKPavilion 35.4°CuletDepth 68.6%

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: £5,341 GBP|Low: £2,674 GBP|High: £5,341 GBP|Avg: £3,608 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£2,674 GBP
Retailer 8£2,725 GBP
Retailer 7£2,895 GBP
Retailer 6£3,028 GBP
Retailer 2£3,253 GBP
Retailer 4£3,461 GBP
Retailer 3£3,774 GBP
Retailer 5£4,091 GBP
Retailer 10£5,046 GBP
MOH London£5,341 GBP

8 data points across 10 retailers

9 retailers£2,674 GBP to £5,341 GBP

A
Cheapest Retailer
-
£2,674 GBP
A
Retailer 2
-
£2,725 GBP
View
B+
Retailer 3
-
£2,895 GBP
View
B+
Retailer 4
-
£3,028 GBP
View
B+
Retailer 5
-
£3,253 GBP
View
B+
Retailer 6
-
£3,461 GBP
View
B+
Retailer 7
-
£3,774 GBP
View
B
Retailer 8
-
£4,091 GBP
View
Most Expensive
B
MOH London
7D8B77005 · Nov 2
£5,341 GBP
View
8 more retailers have this diamond
Prices start from £2,674 GBPSave up to £2,667 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
1.35ct Cushion
£2,674 GBP