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Round|Lab Grown|IGI

1.24ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG636410917

Shape and cutting style on the report: Round brilliant

Certificate IGI LG636410917

Diamond specifications and retailer prices

From £172 GBP
$230 USD
As of November 1, 2026
Save £1,008 GBP (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,179 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.24ct lab-grown round diamond

This 1.24ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG636410917 or 636410917. Listed at 21 retailers as of November 1, 2026, with prices from £172 to £1,179, a £1,008 spread on the same certified stone. Brilliant Earth lists it at £1,179. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.24
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636410917
Dimensions6.84 × 6.91 × 4.25 mm
L/W Ratio1.01
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
6.84 mm6.91 mm1.24 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636410917
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.8%

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 1
Current: £1,179 GBP|Low: £165 GBP|High: £1,381 GBP|Avg: £455 GBP|-14.6%
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
November 2, 2026
Retailer 15£172 GBP
Retailer 5£193 GBP
Retailer 6£199 GBP
Retailer 3£213 GBP
Retailer 8£213 GBP
Retailer 16£287 GBP
Retailer 11£368 GBP
Retailer 9£387 GBP
Retailer 4£393 GBP
Retailer 10£398 GBP
Retailer 13£520 GBP
Retailer 2£565 GBP
Retailer 7£685 GBP
Retailer 12£854 GBP
Retailer 14£869 GBP
Brilliant Earth£1,179 GBP

43 data points across 16 retailers

21 retailers£172 GBP to £1,179 GBP

A
Cheapest Retailer
-
£172 GBP
$230 USD
A
Retailer 2
-
£193 GBP
$258 USD
View
Final sale: no returns
A
Retailer 3
-
£199 GBP
$267 USD
View
A
Retailer 4
-
£213 GBP
$285 USD
View
Retailer 5
-
£213 GBP
$285 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£239 GBP
HK$2,500 HKD
View
A
Retailer 7
-
£287 GBP
$385 USD
View
A
Retailer 8
-
£368 GBP
ZAR 7,962 ZAR
View
A
Retailer 9
-
£387 GBP
€494 EUR
View
A
Retailer 10
-
£393 GBP
$527 USD
View
A
Retailer 11
-
£398 GBP
View
B+
Retailer 12
-
£494 GBP
$662 USD
View
B+
Retailer 13
-
£520 GBP
A$1,071 AUD
View
B+
Retailer 14
-
£565 GBP
$757 USD
View
B
Retailer 15
-
£685 GBP
$918 USD
View
B
Retailer 16
-
£690 GBP
SGD 1,249 SGD
View
B
Retailer 17
-
£724 GBP
$970 USD
View
B
Retailer 18
-
£737 GBP
$988 USD
View
B
Retailer 19
-
£854 GBP
View
B
Retailer 20
-
£869 GBP
$1,165 USD
View
Most Expensive
B
Brilliant Earth
14276620A · Nov 2
£1,179 GBP
$1,580 USD
View
20 more retailers have this diamond
Prices start from £172 GBPSave up to £1,008 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 Round
£172 GBP