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Marquise|Lab Grown|IGI

0.57ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG799697364

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799697364

Diamond specifications and retailer prices

From £249 GBP
As of November 4, 2026
Save £1,048 GBP (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,297 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 0.57ct lab-grown marquise diamond

This 0.57ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799697364 or 799697364. Listed at 21 retailers as of November 4, 2026, with prices from £249 to £1,297, a £1,048 spread on the same certified stone. Riddles Jewelry lists it at £1,297. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.57
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799697364
Dimensions8.71 × 4.37 × 2.70 mm
L/W Ratio1.99
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
8.71 mm4.37 mm0.57 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799697364
Side View
Table 62.0%Crown 34.1°Girdle: MediumPavilion 41°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £279 GBP|Low: £239 GBP|High: £1,252 GBP|Avg: £525 GBP|-9.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 14
November 5, 2026
Retailer 14£249 GBP
Retailer 1£279 GBP
Retailer 4£289 GBP
Retailer 2£309 GBP
Retailer 5£309 GBP
Retailer 6£436 GBP
Retailer 10£478 GBP
Retailer 13£492 GBP
Retailer 12£504 GBP
Retailer 7£545 GBP
Retailer 9£560 GBP
Retailer 11£646 GBP
Retailer 3£993 GBP
Retailer 8£1,234 GBP

45 data points across 14 retailers

21 retailers£249 GBP to £1,297 GBP

A
Cheapest Retailer
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£249 GBP
A
Retailer 2
-
£279 GBP
View
Final sale: no returns
A
Retailer 3
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£289 GBP
View
A
Retailer 4
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£309 GBP
View
Retailer 5
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£309 GBP
View
Price last confirmed 11 days ago
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Retailer 6
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£326 GBP
View
B+
Retailer 7
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£436 GBP
View
Retailer 8
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£478 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
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£492 GBP
View
B+
Retailer 10
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£504 GBP
View
B+
Retailer 11
-
£545 GBP
View
B+
Retailer 12
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£560 GBP
View
B+
Retailer 13
-
£646 GBP
View
B
Retailer 14
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£665 GBP
View
B
Retailer 15
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£993 GBP
View
B
Retailer 16
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£1,025 GBP
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B
Retailer 17
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£1,098 GBP
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B
Retailer 18
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£1,116 GBP
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B
Retailer 19
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£1,207 GBP
View
B
Retailer 20
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£1,234 GBP
View
Most Expensive
B
Riddles Jewelry
1966218829 · Nov 4
£1,297 GBP
$1,746 USD
View
20 more retailers have this diamond
Prices start from £249 GBPSave up to £1,048 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
0.57ct Marquise
£249 GBP