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Marquise|Lab Grown|IGI

1.24ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG760511124

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG760511124

Diamond specifications and retailer prices

From £336 GBP
As of November 4, 2026
Save £1,590 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,926 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 LG760511124 or 760511124. Listed at 23 retailers as of November 4, 2026, with prices from £336 to £1,926, a £1,590 spread on the same certified stone. Brilliant Earth lists it at £1,926. 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 angle35.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760511124
Dimensions10.84 × 5.65 × 3.54 mm
L/W Ratio1.92
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
10.84 mm5.65 mm1.24 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760511124
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.7%

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: £1,926 GBP|Low: £336 GBP|High: £2,244 GBP|Avg: £946 GBP|-14.2%
Brilliant Earth
Retailer 2
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Retailer 22
November 5, 2026
Retailer 15£336 GBP
Retailer 6£376 GBP
Retailer 10£376 GBP
Retailer 4£416 GBP
Retailer 5£455 GBP
Retailer 18£522 GBP
Retailer 9£584 GBP
Retailer 19£633 GBP
Retailer 3£646 GBP
Retailer 11£651 GBP
Retailer 2£681 GBP
Retailer 16£717 GBP
Retailer 17£1,013 GBP
Retailer 22£1,118 GBP
Retailer 20£1,141 GBP
Retailer 8£1,207 GBP
Retailer 14£1,318 GBP
Retailer 21£1,337 GBP
Retailer 7£1,360 GBP
Retailer 12£1,482 GBP
Retailer 13£1,524 GBP
Brilliant Earth£1,926 GBP

40 data points across 22 retailers

23 retailers£336 GBP to £1,926 GBP

A
Cheapest Retailer
-
£336 GBP
A
Retailer 2
-
£376 GBP
View
Final sale: no returns
A
Retailer 3
-
£376 GBP
View
Retailer 4
-
£416 GBP
View
Price last confirmed 20 days ago
A
Retailer 5
-
£416 GBP
View
A
Retailer 6
-
£455 GBP
View
A
Retailer 7
-
£522 GBP
View
B+
Retailer 8
-
£584 GBP
View
Retailer 9
-
£633 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£646 GBP
View
B+
Retailer 11
-
£651 GBP
View
B+
Retailer 12
-
£681 GBP
View
B+
Retailer 13
-
£717 GBP
View
B+
Retailer 14
-
£1,013 GBP
View
B
Retailer 15
-
£1,118 GBP
View
Retailer 16
-
£1,141 GBP
View
Price last confirmed 8 days ago
B
Retailer 17
-
£1,207 GBP
View
B
Retailer 18
-
£1,318 GBP
View
B
Retailer 19
-
£1,337 GBP
View
B
Retailer 20
-
£1,360 GBP
View
B
Retailer 21
-
£1,482 GBP
View
B
Retailer 22
-
£1,524 GBP
View
Most Expensive
B
Brilliant Earth
19055955A · Nov 4
£1,926 GBP
$2,600 USD
View
22 more retailers have this diamond
Prices start from £336 GBPSave up to £1,590 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
£336 GBP