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Cushion|Lab Grown|IGI

1.36ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG708585401

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG708585401

Diamond specifications and retailer prices

From £162 GBP
$217 USD
As of October 30, 2026
Save £674 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £836 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.36ct lab-grown cushion diamond

This 1.36ct lab-grown 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 LG708585401 or 708585401. Listed at 10 retailers as of October 30, 2026, with prices from £162 to £836, a £674 spread on the same certified stone. MOH London lists it at £836. 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

1.36
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG708585401
Dimensions7.40 × 5.85 × 4.09 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.40 mm5.85 mm1.36 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG708585401
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 69.9%

Caratlytics Score

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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: Oct 30
Current: £836 GBP|Low: £111 GBP|High: £1,217 GBP|Avg: £511 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7£162 GBP
Retailer 9£240 GBP
Retailer 2£326 GBP
Retailer 3£328 GBP
Retailer 8£405 GBP
Retailer 5£443 GBP
Retailer 10£615 GBP
Retailer 6£649 GBP
Retailer 4£821 GBP
MOH London£836 GBP

42 data points across 10 retailers

10 retailers£162 GBP to £836 GBP

A
Cheapest Retailer
-
£162 GBP
$217 USD
Final sale: no returns
B+
Retailer 2
-
£240 GBP
$322 USD
View
A
Retailer 3
-
£326 GBP
View
B+
Retailer 4
-
£328 GBP
€419 EUR
View
B+
Retailer 5
-
£405 GBP
$543 USD
View
B+
Retailer 6
-
£443 GBP
$594 USD
View
B
Retailer 7
-
£615 GBP
$824 USD
View
Retailer 8
-
£649 GBP
$870 USD
View
Price last confirmed 13 days ago
B
Retailer 9
-
£821 GBP
$1,100 USD
View
Most Expensive
B
MOH London
LG708585401 · Nov 1
£836 GBP
View
9 more retailers have this diamond
Prices start from £162 GBPSave up to £674 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
1.36ct Cushion
£162 GBP