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Marquise|Lab Grown|IGI

1.34ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG799676762

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799676762

Diamond specifications and retailer prices

From £324 GBP
As of November 4, 2026
Save £1,579 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,904 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.34ct lab-grown marquise diamond

This 1.34ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799676762 or 799676762. Listed at 22 retailers as of November 4, 2026, with prices from £324 to £1,904, a £1,579 spread on the same certified stone. Brilliant Earth lists it at £1,904. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.34
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799676762
Dimensions10.73 × 5.90 × 3.70 mm
L/W Ratio1.82
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
10.73 mm5.90 mm1.34 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799676762
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 40.1°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: £1,904 GBP|Low: £324 GBP|High: £2,970 GBP|Avg: £1,037 GBP|-35.9%
Brilliant Earth
Retailer 2
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November 5, 2026
Retailer 15£324 GBP
Retailer 9£363 GBP
Retailer 17£364 GBP
Retailer 4£402 GBP
Retailer 8£445 GBP
Retailer 20£507 GBP
Retailer 3£574 GBP
Retailer 12£632 GBP
Retailer 18£632 GBP
Retailer 2£659 GBP
Retailer 16£693 GBP
Retailer 6£730 GBP
Retailer 14£1,081 GBP
Retailer 11£1,173 GBP
Retailer 10£1,279 GBP
Retailer 5£1,293 GBP
Retailer 7£1,318 GBP
Retailer 19£1,447 GBP
Retailer 13£1,474 GBP
Brilliant Earth£1,904 GBP

37 data points across 20 retailers

22 retailers£324 GBP to £1,904 GBP

A
Cheapest Retailer
-
£324 GBP
A
Retailer 2
-
£363 GBP
View
Final sale: no returns
A
Retailer 3
-
£364 GBP
View
A
Retailer 4
-
£402 GBP
View
A
Retailer 5
-
£445 GBP
View
A
Retailer 6
-
£507 GBP
View
Retailer 7
-
£556 GBP
View
Price last confirmed 20 days ago
A
Retailer 8
-
£574 GBP
View
A
Retailer 9
-
£632 GBP
View
Retailer 10
-
£632 GBP
View
Price last confirmed 9 days ago
A
Retailer 11
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£659 GBP
View
A
Retailer 12
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£693 GBP
View
A
Retailer 13
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£730 GBP
View
B+
Retailer 14
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£1,081 GBP
View
B+
Retailer 15
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£1,173 GBP
View
B+
Retailer 16
-
£1,279 GBP
View
B+
Retailer 17
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£1,293 GBP
View
B+
Retailer 18
-
£1,318 GBP
View
B+
Retailer 19
-
£1,447 GBP
View
B
Retailer 20
-
£1,474 GBP
View
Retailer 21
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£1,670 GBP
View
Price last confirmed 101 days ago
Most Expensive
B
Brilliant Earth
19795962A · Nov 4
£1,904 GBP
$2,570 USD
View
21 more retailers have this diamond
Prices start from £324 GBPSave up to £1,579 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
1.34ct Marquise
£324 GBP