Cushion|Lab Grown|IGI

1.36ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846664734

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846664734

Diamond specifications and retailer prices

From £515 GBP
$691 USD
As of November 1, 2026
Save £983 GBP (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,498 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846664734 or 846664734. Listed at 5 retailers as of November 1, 2026, with prices from £515 to £1,498, a £983 spread on the same certified stone. Rare Carat lists it at £1,498. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.36
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle32.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846664734
Dimensions8.11 × 5.59 × 3.76 mm
L/W Ratio1.45
Girdle conditionFaceted
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
8.11 mm5.59 mm1.36 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846664734
Side View
Table 64.0%Crown 39.9°Girdle: STK-THKPavilion 32.7°Culet: NoneDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £749 GBP|Low: £515 GBP|High: £1,339 GBP|Avg: £993 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3£515 GBP
Retailer 1£749 GBP
Retailer 2£1,248 GBP
Retailer 4£1,339 GBP

2 data points across 4 retailers

5 retailers£515 GBP to £1,498 GBP

A
Cheapest Retailer
-
£515 GBP
$691 USD
A
Retailer 2
-
£749 GBP
$1,005 USD
View
B+
Retailer 3
-
£1,248 GBP
View
B
Retailer 4
-
£1,339 GBP
$1,797 USD
View
Most Expensive
B
Rare Carat
640-22 · Nov 1
£1,498 GBP
$2,010 USD
View
4 more retailers have this diamond
Prices start from £515 GBPSave up to £983 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
£515 GBP