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Radiant|Lab Grown|IGI

1.24ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG649409118

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

Certificate IGI LG649409118

Diamond specifications and retailer prices

From £124 GBP
As of November 4, 2026
Save £723 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £847 GBP at Brilliant Earth · As of November 5, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG649409118 or 649409118. Listed at 22 retailers as of November 4, 2026, with prices from £124 to £847, a £723 spread on the same certified stone. Brilliant Earth lists it at £847. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.24
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.4°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649409118
Dimensions7.18 × 5.22 × 3.58 mm
L/W Ratio1.38
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
7.18 mm5.22 mm1.24 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649409118
Side View
Table 65.0%Crown 41.4°Girdle: MED-STKPavilion 31.3°Culet: NoneDepth 68.6%

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 4
Current: £847 GBP|Low: £119 GBP|High: £869 GBP|Avg: £359 GBP|-2.6%
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
November 5, 2026
Retailer 16£124 GBP
Retailer 7£138 GBP
Retailer 4£143 GBP
Retailer 5£154 GBP
Retailer 17£154 GBP
Retailer 15£208 GBP
Retailer 13£257 GBP
Retailer 11£265 GBP
Retailer 6£340 GBP
Retailer 9£343 GBP
Retailer 10£374 GBP
Retailer 14£379 GBP
Retailer 2£397 GBP
Retailer 3£493 GBP
Retailer 12£717 GBP
Retailer 8£804 GBP
Brilliant Earth£847 GBP

31 data points across 17 retailers

22 retailers£124 GBP to £847 GBP

A
Cheapest Retailer
-
£124 GBP
A
Retailer 2
-
£138 GBP
View
Final sale: no returns
A
Retailer 3
-
£143 GBP
View
Retailer 4
-
£154 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£154 GBP
View
B+
Retailer 6
-
£208 GBP
View
A
Retailer 7
-
£257 GBP
View
A
Retailer 8
-
£265 GBP
View
A
Retailer 9
-
£340 GBP
View
A
Retailer 10
-
£343 GBP
View
A
Retailer 11
-
£374 GBP
View
B+
Retailer 12
-
£379 GBP
View
B+
Retailer 13
-
£397 GBP
View
Retailer 14
-
£404 GBP
View
Price last confirmed 10 days ago
B+
Retailer 15
-
£493 GBP
View
B
Retailer 16
-
£531 GBP
View
B
Retailer 17
-
£533 GBP
View
Retailer 18
-
£572 GBP
View
Price last confirmed 22 days ago
B
Retailer 19
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£717 GBP
View
B
Retailer 20
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£804 GBP
View
B
Retailer 21
-
£807 GBP
View
Most Expensive
B
Brilliant Earth
16956878A · Nov 5
£847 GBP
$1,140 USD
View
21 more retailers have this diamond
Prices start from £124 GBPSave up to £723 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
£124 GBP