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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 $3,579 USD
As of November 6, 2026
Save $3,570 USD (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,149 USD 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 $3,579 to $7,149, a $3,570 spread on the same certified stone. MOH London lists it at $7,149. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,149 USD|Low: $3,579 USD|High: $7,149 USD|Avg: $4,830 USD
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$3,579 USD
Retailer 8$3,647 USD
Retailer 7$3,875 USD
Retailer 6$4,053 USD
Retailer 2$4,354 USD
Retailer 4$4,632 USD
Retailer 3$5,051 USD
Retailer 5$5,476 USD
Retailer 10$6,754 USD
MOH London$7,149 USD

8 data points across 10 retailers

9 retailers$3,579 USD to $7,149 USD

A
Cheapest Retailer
-
$3,579 USD
A
Retailer 2
-
$3,647 USD
View
B+
Retailer 3
-
$3,875 USD
View
B+
Retailer 4
-
$4,053 USD
View
B+
Retailer 5
-
$4,354 USD
View
B+
Retailer 6
-
$4,632 USD
View
B+
Retailer 7
-
$5,051 USD
View
B
Retailer 8
-
$5,476 USD
View
Most Expensive
B
MOH London
7D8B77005 · Nov 2
$7,149 USD
£5,629 GBP
View
8 more retailers have this diamond
Prices start from $3,579 USDSave up to $3,570 USD

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
$3,579 USD