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Radiant|Lab Grown|IGI

1.37ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG830624079

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG830624079

Diamond specifications and retailer prices

From £257 GBP
$342 USD
As of October 30, 2026
Save £2,064 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,320 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.37ct lab-grown radiant diamond

This 1.37ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830624079 or 830624079. Listed at 18 retailers as of October 29, 2026, with prices from £257 to £2,320, a £2,064 spread on the same certified stone. Brilliant Earth lists it at £2,320. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.8°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830624079
Dimensions7.64 × 5.60 × 3.72 mm
L/W Ratio1.36
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
7.64 mm5.60 mm1.37 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830624079
Side View
Table 64.0%Crown 44.8°Girdle: MediumPavilion 35.8°Culet: NoneDepth 66.4%

Caratlytics Score

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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: £2,320 GBP|Low: £257 GBP|High: £2,320 GBP|Avg: £889 GBP
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
October 30, 2026
Retailer 14£257 GBP
Retailer 13£387 GBP
Retailer 10£442 GBP
Retailer 8£463 GBP
Retailer 2£476 GBP
Retailer 4£498 GBP
Retailer 12£746 GBP
Retailer 9£828 GBP
Retailer 5£837 GBP
Retailer 11£902 GBP
Retailer 6£987 GBP
Retailer 7£1,085 GBP
Retailer 3£2,088 GBP
Brilliant Earth£2,320 GBP

27 data points across 14 retailers

18 retailers£257 GBP to £2,320 GBP

A
Cheapest Retailer
-
£257 GBP
$342 USD
Final sale: no returns
Retailer 2
-
£285 GBP
$380 USD
View
Price last confirmed 27 days ago
Retailer 3
-
£333 GBP
$444 USD
View
Price last confirmed 32 days ago
Retailer 4
-
£369 GBP
$491 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
£387 GBP
$515 USD
View
A
Retailer 6
-
£442 GBP
$588 USD
View
A
Retailer 7
-
£463 GBP
ZAR 9,953 ZAR
View
A
Retailer 8
-
£476 GBP
View
A
Retailer 9
-
£498 GBP
€632 EUR
View
B+
Retailer 10
-
£746 GBP
$993 USD
View
B+
Retailer 11
-
£828 GBP
$1,102 USD
View
B+
Retailer 12
-
£837 GBP
$1,114 USD
View
B+
Retailer 13
-
£902 GBP
$1,202 USD
View
B+
Retailer 14
-
£987 GBP
SGD 1,776 SGD
View
B
Retailer 15
-
£1,085 GBP
View
Retailer 16
-
£1,186 GBP
$1,579 USD
View
Price last confirmed 29 days ago
Retailer 17
-
£2,088 GBP
$2,780 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21434074A · Oct 29
£2,320 GBP
$3,090 USD
View
17 more retailers have this diamond
Prices start from £257 GBPSave up to £2,064 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 Radiant
£257 GBP