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Cushion|Lab Grown|IGI

1.36ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG733558056

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG733558056

Diamond specifications and retailer prices

From £420 GBP
$563 USD
As of October 30, 2026
Save £1,655 GBP (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,075 GBP at Brilliant Earth · As of October 30, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG733558056 or 733558056. Listed at 18 retailers as of October 30, 2026, with prices from £420 to £2,075, a £1,655 spread on the same certified stone. Brilliant Earth lists it at £2,075. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733558056
Dimensions7.72 × 5.99 × 3.95 mm
L/W Ratio1.29
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
7.72 mm5.99 mm1.36 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733558056
Side View
Table 64.0%Crown 33.7°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 65.9%

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: Oct 30
Current: £2,075 GBP|Low: £420 GBP|High: £2,246 GBP|Avg: £1,051 GBP|-4.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 4£420 GBP
Retailer 10£473 GBP
Retailer 8£506 GBP
Retailer 14£537 GBP
Retailer 17£627 GBP
Retailer 12£715 GBP
Retailer 5£725 GBP
Retailer 18£769 GBP
Retailer 11£776 GBP
Retailer 13£801 GBP
Retailer 2£1,135 GBP
Retailer 16£1,354 GBP
Retailer 9£1,373 GBP
Retailer 7£1,476 GBP
Retailer 3£1,517 GBP
Retailer 6£1,613 GBP
Retailer 15£1,947 GBP
Brilliant Earth£2,075 GBP

41 data points across 18 retailers

18 retailers£420 GBP to £2,075 GBP

A
Cheapest Retailer
-
£420 GBP
$563 USD
Final sale: no returns
Retailer 2
-
£473 GBP
$634 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
£506 GBP
HK$5,300 HKD
View
A
Retailer 4
-
£537 GBP
$720 USD
View
A
Retailer 5
-
£627 GBP
$840 USD
View
A
Retailer 6
-
£715 GBP
€913 EUR
View
A
Retailer 7
-
£725 GBP
$971 USD
View
A
Retailer 8
-
£769 GBP
$1,031 USD
View
A
Retailer 9
-
£776 GBP
View
A
Retailer 10
-
£801 GBP
ZAR 17,330 ZAR
View
B+
Retailer 11
-
£1,135 GBP
A$2,340 AUD
View
B+
Retailer 12
-
£1,354 GBP
View
Retailer 13
-
£1,373 GBP
$1,840 USD
View
Price last confirmed 12 days ago
B
Retailer 14
-
£1,476 GBP
SGD 2,672 SGD
View
B
Retailer 15
-
£1,517 GBP
$2,032 USD
View
B
Retailer 16
-
£1,613 GBP
$2,162 USD
View
B
Retailer 17
-
£1,947 GBP
View
Most Expensive
B
Brilliant Earth
19056516A · Oct 30
£2,075 GBP
$2,780 USD
View
17 more retailers have this diamond
Prices start from £420 GBPSave up to £1,655 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
£420 GBP