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Cushion|Lab Grown|IGI

1.36ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG817653500

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG817653500

Diamond specifications and retailer prices

From £241 GBP
As of November 4, 2026
Save £769 GBP (76%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,010 GBP at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817653500 or 817653500. Listed at 6 retailers as of November 4, 2026, with prices from £241 to £1,010, a £769 spread on the same certified stone. Brilliant Earth lists it at £1,010. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.36
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.4°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817653500
Dimensions6.57 × 6.57 × 3.96 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.57 mm6.57 mm1.36 ctG / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG817653500
Side View
Table 69.0%Crown 41.4°Girdle: STK-VTKPavilion 37.2°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,010 GBP|Low: £241 GBP|High: £10,839 GBP|Avg: £675 GBP|-8.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6£241 GBP
Retailer 2£328 GBP
Retailer 5£415 GBP
Retailer 4£431 GBP
Retailer 3£494 GBP
Brilliant Earth£1,010 GBP

22 data points across 6 retailers

6 retailers£241 GBP to £1,010 GBP

B+
Cheapest Retailer
-
£241 GBP
A
Retailer 2
-
£328 GBP
View
B+
Retailer 3
-
£415 GBP
View
B+
Retailer 4
-
£431 GBP
View
B+
Retailer 5
-
£494 GBP
View
Most Expensive
B
Brilliant Earth
21103580A · Nov 5
£1,010 GBP
$1,360 USD
View
5 more retailers have this diamond
Prices start from £241 GBPSave up to £769 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
£241 GBP