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Cushion|Lab Grown|IGI

1.80ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG744513208

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG744513208

Diamond specifications and retailer prices

From £369 GBP
$494 USD
As of October 30, 2026
Save £2,385 GBP (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,754 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.8ct lab-grown cushion diamond

This 1.8ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG744513208 or 744513208. Listed at 13 retailers as of October 30, 2026, with prices from £369 to £2,754, a £2,385 spread on the same certified stone. Brilliant Earth lists it at £2,754. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744513208
Dimensions8.20 × 8.20 × 6.58 mm
L/W Ratio1.00
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
8.20 mm8.20 mm1.80 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744513208
Side View
Table 62.0%Crown 33.9°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 68.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £2,754 GBP|Low: £263 GBP|High: £3,284 GBP|Avg: £1,357 GBP|-16.1%
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
October 30, 2026
Retailer 5£369 GBP
Retailer 9£482 GBP
Retailer 13£515 GBP
Retailer 8£570 GBP
Retailer 6£648 GBP
Retailer 3£839 GBP
Retailer 2£921 GBP
Retailer 11£1,064 GBP
Retailer 7£1,461 GBP
Retailer 4£2,327 GBP
Retailer 12£2,437 GBP
Retailer 10£2,567 GBP
Brilliant Earth£2,754 GBP

32 data points across 13 retailers

13 retailers£369 GBP to £2,754 GBP

A
Cheapest Retailer
-
£369 GBP
$494 USD
Final sale: no returns
A
Retailer 2
-
£482 GBP
$646 USD
View
A
Retailer 3
-
£515 GBP
$690 USD
View
A
Retailer 4
-
£570 GBP
$764 USD
View
A
Retailer 5
-
£648 GBP
€827 EUR
View
A
Retailer 6
-
£839 GBP
$1,124 USD
View
A
Retailer 7
-
£921 GBP
A$1,898 AUD
View
A
Retailer 8
-
£1,064 GBP
$1,426 USD
View
B+
Retailer 9
-
£1,461 GBP
View
Retailer 10
-
£2,327 GBP
A$4,796 AUD
View
Price last confirmed 22 days ago
Retailer 11
-
£2,437 GBP
$3,265 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
£2,567 GBP
$3,440 USD
View
Most Expensive
B
Brilliant Earth
16861116Y · Oct 30
£2,754 GBP
$3,690 USD
View
12 more retailers have this diamond
Prices start from £369 GBPSave up to £2,385 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
1.80ct Cushion
£369 GBP