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Cushion|Lab Grown|IGI

1.36ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG502139756

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG502139756

Diamond specifications and retailer prices

From £1,290 GBP
$1,728 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: £1,290 GBP at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

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 top-tier cut grade and certified by IGI LG502139756 or 502139756. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.36
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.2°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG502139756
Dimensions6.42 × 5.85 mm
L/W Ratio1.10
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
6.42 mm5.85 mm1.36 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG502139756
Side View
Table 64.0%Crown 38.2°Girdle: THK-VTKPavilion 32°Culet: NoneDepth 69.1%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 30
Current: £1,290 GBP|Low: £1,229 GBP|High: £2,127 GBP|Avg: £1,569 GBP|-39.4%
September 23, 2026
B2C Jewels£1,290 GBP

4 data points across 1 retailer

1 retailer

C
B2C Jewels
20034566 · Oct 30
£1,290 GBP
$1,728 USD
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C
1.36ct Cushion
£1,290 GBP