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Marquise|Lab Grown|IGI

1.24ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG784669513

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG784669513

Diamond specifications and retailer prices

From £384 GBP
As of November 4, 2026
Save £1,860 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,244 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.24ct lab-grown marquise diamond

This 1.24ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784669513 or 784669513. Listed at 23 retailers as of November 4, 2026, with prices from £384 to £2,244, a £1,860 spread on the same certified stone. Brilliant Earth lists it at £2,244. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784669513
Dimensions11.10 × 5.60 × 3.49 mm
L/W Ratio1.98
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
11.10 mm5.60 mm1.24 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784669513
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.3%

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: £2,244 GBP|Low: £384 GBP|High: £2,396 GBP|Avg: £1,049 GBP
Brilliant Earth
Retailer 2
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November 5, 2026
Retailer 15£384 GBP
Retailer 6£430 GBP
Retailer 10£430 GBP
Retailer 5£476 GBP
Retailer 21£521 GBP
Retailer 18£578 GBP
Retailer 9£632 GBP
Retailer 4£663 GBP
Retailer 19£725 GBP
Retailer 13£731 GBP
Retailer 11£739 GBP
Retailer 16£821 GBP
Retailer 17£1,161 GBP
Retailer 20£1,167 GBP
Retailer 3£1,230 GBP
Retailer 22£1,253 GBP
Retailer 8£1,388 GBP
Retailer 14£1,507 GBP
Retailer 7£1,550 GBP
Retailer 12£1,638 GBP
Retailer 2£1,984 GBP
Brilliant Earth£2,244 GBP

42 data points across 22 retailers

23 retailers£384 GBP to £2,244 GBP

A
Cheapest Retailer
-
£384 GBP
A
Retailer 2
-
£430 GBP
View
Final sale: no returns
A
Retailer 3
-
£430 GBP
View
Retailer 4
-
£476 GBP
View
Price last confirmed 20 days ago
A
Retailer 5
-
£476 GBP
View
A
Retailer 6
-
£521 GBP
View
B+
Retailer 7
-
£578 GBP
View
B+
Retailer 8
-
£632 GBP
View
B+
Retailer 9
-
£663 GBP
View
Retailer 10
-
£725 GBP
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£731 GBP
View
B+
Retailer 12
-
£739 GBP
View
B+
Retailer 13
-
£821 GBP
View
B
Retailer 14
-
£1,161 GBP
View
Retailer 15
-
£1,167 GBP
View
Price last confirmed 8 days ago
B+
Retailer 16
-
£1,230 GBP
View
B+
Retailer 17
-
£1,253 GBP
View
B
Retailer 18
-
£1,388 GBP
View
B
Retailer 19
-
£1,507 GBP
View
B
Retailer 20
-
£1,550 GBP
View
B
Retailer 21
-
£1,638 GBP
View
B
Retailer 22
-
£1,984 GBP
View
Most Expensive
B
Brilliant Earth
19066894A · Nov 4
£2,244 GBP
$3,030 USD
View
22 more retailers have this diamond
Prices start from £384 GBPSave up to £1,860 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 Marquise
£384 GBP