Marquise|Lab Grown|IGI

5.09ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG833644220

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG833644220

Diamond specifications and retailer prices

From £521 GBP
$699 USD
As of November 2, 2026
Save £3,503 GBP (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,024 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 5.09ct lab-grown marquise diamond

This 5.09ct lab-grown marquise sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG833644220 or 833644220. Listed at 19 retailers as of November 2, 2026, with prices from £521 to £4,024, a £3,503 spread on the same certified stone. Brilliant Earth lists it at £4,024. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.09
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833644220
Dimensions17.91 × 8.93 × 5.55 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.91 mm8.93 mm5.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833644220
Side View
Table 55.0%Crown 34.6°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 62.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £4,024 GBP|Low: £521 GBP|High: £4,024 GBP|Avg: £1,486 GBP
Brilliant Earth
Retailer 2
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November 2, 2026
Retailer 8£521 GBP
Retailer 13£566 GBP
Retailer 15£604 GBP
Retailer 11£668 GBP
Retailer 19£734 GBP
Retailer 6£853 GBP
Retailer 12£968 GBP
Retailer 4£1,224 GBP
Retailer 10£1,292 GBP
Retailer 9£1,363 GBP
Retailer 2£1,487 GBP
Retailer 17£1,517 GBP
Retailer 16£1,698 GBP
Retailer 3£1,874 GBP
Retailer 5£1,926 GBP
Retailer 7£2,083 GBP
Retailer 14£2,372 GBP
Retailer 18£2,723 GBP
Brilliant Earth£4,024 GBP

29 data points across 19 retailers

19 retailers£521 GBP to £4,024 GBP

A
Cheapest Retailer
-
£521 GBP
$699 USD
A
Retailer 2
-
£566 GBP
$760 USD
View
A
Retailer 3
-
£604 GBP
$810 USD
View
Retailer 4
-
£668 GBP
$897 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
£734 GBP
$985 USD
View
B+
Retailer 6
-
£853 GBP
$1,145 USD
View
A
Retailer 7
-
£968 GBP
View
A
Retailer 8
-
£1,224 GBP
A$2,527 AUD
View
A
Retailer 9
-
£1,292 GBP
ZAR 28,020 ZAR
View
B+
Retailer 10
-
£1,363 GBP
€1,742 EUR
View
B+
Retailer 11
-
£1,487 GBP
$1,996 USD
View
B+
Retailer 12
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£1,517 GBP
$2,036 USD
View
B+
Retailer 13
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£1,698 GBP
$2,279 USD
View
B+
Retailer 14
-
£1,874 GBP
View
B+
Retailer 15
-
£1,926 GBP
$2,585 USD
View
B+
Retailer 16
-
£2,083 GBP
$2,795 USD
View
B+
Retailer 17
-
£2,372 GBP
View
B
Retailer 18
-
£2,723 GBP
A$5,621 AUD
View
Most Expensive
B
Brilliant Earth
21342616A · Nov 2
£4,024 GBP
$5,400 USD
View
18 more retailers have this diamond
Prices start from £521 GBPSave up to £3,503 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
5.09ct Marquise
£521 GBP