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Cushion|Lab Grown|IGI

1.37ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG845672257

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG845672257

Diamond specifications and retailer prices

From £662 GBP
€846 EUR
As of October 27, 2026
Save £1,752 GBP (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,414 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.37ct lab-grown cushion diamond

This 1.37ct 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 LG845672257 or 845672257. Listed at 16 retailers as of October 27, 2026, with prices from £662 to £2,414, a £1,752 spread on the same certified stone. Brilliant Earth lists it at £2,414. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845672257
Dimensions7.53 × 5.96 × 3.93 mm
L/W Ratio1.26
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
7.53 mm5.96 mm1.37 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845672257
Side View
Table 63.0%Crown 35.5°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 65.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: £544 GBP|Low: £467 GBP|High: £2,112 GBP|Avg: £1,058 GBP|-2.7%
Retailer 1
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
October 28, 2026
Retailer 4£467 GBP
Retailer 9£469 GBP
Retailer 1£544 GBP
Retailer 11£662 GBP
Retailer 15£724 GBP
Retailer 7£732 GBP
Retailer 10£750 GBP
Retailer 13£773 GBP
Retailer 3£775 GBP
Retailer 8£1,006 GBP
Retailer 5£1,480 GBP
Retailer 2£1,523 GBP
Retailer 16£1,582 GBP
Retailer 14£1,688 GBP
Retailer 12£1,898 GBP
Retailer 6£2,112 GBP

7 data points across 16 retailers

16 retailers£662 GBP to £2,414 GBP

Retailer 1
-
£469 GBP
Price last confirmed 7 days ago
Retailer 2
-
£544 GBP
$730 USD
View
Price last confirmed 6 days ago
A
Retailer 3
-
£662 GBP
€846 EUR
View
Retailer 4
-
£724 GBP
$972 USD
View
Price last confirmed 7 days ago
Retailer 5
-
£732 GBP
$982 USD
View
Price last confirmed 8 days ago
Retailer 6
-
£750 GBP
View
Price last confirmed 7 days ago
Retailer 7
-
£773 GBP
ZAR 16,764 ZAR
View
Price last confirmed 10 days ago
A
Retailer 8
-
£775 GBP
$1,040 USD
View
Retailer 9
-
£1,006 GBP
$1,350 USD
View
Price last confirmed 7 days ago
B
Retailer 10
-
£1,480 GBP
$1,986 USD
View
Retailer 11
-
£1,523 GBP
CA$2,838 CAD
View
Price last confirmed 7 days ago
Retailer 12
-
£1,582 GBP
$2,123 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
£1,688 GBP
$2,265 USD
View
Retailer 14
-
£1,898 GBP
View
Price last confirmed 7 days ago
Retailer 15
-
£2,112 GBP
$2,834 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
22270086A · Oct 28
£2,414 GBP
$3,240 USD
View
15 more retailers have this diamond
Prices start from £662 GBPSave up to £1,752 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
1.37ct Cushion
£662 GBP