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Radiant|Lab Grown|IGI

1.24ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG831687330

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

Certificate IGI LG831687330

Diamond specifications and retailer prices

From £224 GBP
$301 USD
As of November 3, 2026
Save £1,348 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,572 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.24ct lab-grown radiant diamond

This 1.24ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831687330 or 831687330. Listed at 16 retailers as of November 2, 2026, with prices from £224 to £1,572, a £1,348 spread on the same certified stone. Brilliant Earth lists it at £1,572. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.24
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.9°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831687330
Dimensions7.29 × 5.31 × 3.67 mm
L/W Ratio1.37
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
7.29 mm5.31 mm1.24 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831687330
Side View
Table 62.0%Crown 47.9°Girdle: MediumPavilion 35.3°Culet: NoneDepth 69.1%

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: Nov 3
Current: £1,572 GBP|Low: £224 GBP|High: £1,572 GBP|Avg: £617 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
Retailer 15
Retailer 16
November 3, 2026
Retailer 2£224 GBP
Retailer 9£242 GBP
Retailer 14£249 GBP
Retailer 7£365 GBP
Retailer 5£412 GBP
Retailer 15£427 GBP
Retailer 11£463 GBP
Retailer 16£464 GBP
Retailer 3£602 GBP
Retailer 4£762 GBP
Retailer 8£797 GBP
Retailer 6£835 GBP
Retailer 10£875 GBP
Retailer 13£970 GBP
Retailer 12£975 GBP
Brilliant Earth£1,572 GBP

10 data points across 16 retailers

16 retailers£224 GBP to £1,572 GBP

A
Cheapest Retailer
-
£224 GBP
$301 USD
Final sale: no returns
A
Retailer 2
-
£242 GBP
$325 USD
View
A
Retailer 3
-
£249 GBP
View
A
Retailer 4
-
£365 GBP
$490 USD
View
A
Retailer 5
-
£412 GBP
$553 USD
View
A
Retailer 6
-
£427 GBP
ZAR 9,265 ZAR
View
A
Retailer 7
-
£463 GBP
View
A
Retailer 8
-
£464 GBP
€593 EUR
View
B+
Retailer 9
-
£602 GBP
$808 USD
View
B+
Retailer 10
-
£762 GBP
$1,022 USD
View
B+
Retailer 11
-
£797 GBP
$1,069 USD
View
B+
Retailer 12
-
£835 GBP
$1,120 USD
View
B+
Retailer 13
-
£875 GBP
SGD 1,587 SGD
View
B+
Retailer 14
-
£970 GBP
View
B+
Retailer 15
-
£975 GBP
$1,309 USD
View
Most Expensive
B
Brilliant Earth
22262599A · Nov 2
£1,572 GBP
$2,110 USD
View
15 more retailers have this diamond
Prices start from £224 GBPSave up to £1,348 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
1.24ct Radiant
£224 GBP