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Marquise|Lab Grown|IGI

1.33ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG799676893

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799676893

Diamond specifications and retailer prices

From £317 GBP
As of November 4, 2026
Save £1,527 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,844 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.33ct lab-grown marquise diamond

This 1.33ct 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 LG799676893 or 799676893. Listed at 22 retailers as of November 4, 2026, with prices from £317 to £1,844, a £1,527 spread on the same certified stone. Brilliant Earth lists it at £1,844. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799676893
Dimensions11.08 × 5.80 × 3.62 mm
L/W Ratio1.91
Girdle conditionFaceted
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
11.08 mm5.80 mm1.33 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799676893
Side View
Table 57.0%Crown 34.4°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.4%

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: £1,844 GBP|Low: £317 GBP|High: £2,948 GBP|Avg: £994 GBP|-37.4%
Brilliant Earth
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November 5, 2026
Retailer 16£317 GBP
Retailer 9£355 GBP
Retailer 18£355 GBP
Retailer 4£393 GBP
Retailer 14£407 GBP
Retailer 8£436 GBP
Retailer 21£500 GBP
Retailer 3£565 GBP
Retailer 19£619 GBP
Retailer 2£641 GBP
Retailer 12£644 GBP
Retailer 17£677 GBP
Retailer 6£718 GBP
Retailer 15£1,101 GBP
Retailer 11£1,140 GBP
Retailer 10£1,249 GBP
Retailer 5£1,262 GBP
Retailer 7£1,287 GBP
Retailer 20£1,421 GBP
Retailer 13£1,439 GBP
Brilliant Earth£1,844 GBP

35 data points across 21 retailers

22 retailers£317 GBP to £1,844 GBP

A
Cheapest Retailer
-
£317 GBP
A
Retailer 2
-
£355 GBP
View
Final sale: no returns
A
Retailer 3
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£355 GBP
View
A
Retailer 4
-
£393 GBP
View
Retailer 5
-
£407 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
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£436 GBP
View
A
Retailer 7
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£500 GBP
View
A
Retailer 8
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£565 GBP
View
A
Retailer 9
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£619 GBP
View
A
Retailer 10
-
£641 GBP
View
Retailer 11
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£644 GBP
View
Price last confirmed 9 days ago
A
Retailer 12
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£677 GBP
View
A
Retailer 13
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£718 GBP
View
B+
Retailer 14
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£1,101 GBP
View
B+
Retailer 15
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£1,140 GBP
View
B+
Retailer 16
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£1,249 GBP
View
B+
Retailer 17
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£1,262 GBP
View
B+
Retailer 18
-
£1,287 GBP
View
B+
Retailer 19
-
£1,421 GBP
View
B
Retailer 20
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£1,439 GBP
View
Retailer 21
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£1,656 GBP
View
Price last confirmed 101 days ago
Most Expensive
B
Brilliant Earth
20005309A · Nov 4
£1,844 GBP
$2,490 USD
View
21 more retailers have this diamond
Prices start from £317 GBPSave up to £1,527 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
1.33ct Marquise
£317 GBP