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Marquise|Lab Grown|IGI

5.09ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG845618761

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845618761

Diamond specifications and retailer prices

From £1,047 GBP
$1,403 USD
As of October 29, 2026
Save £4,535 GBP (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,583 GBP at Brilliant Earth · As of October 31, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG845618761 or 845618761. Listed at 16 retailers as of October 29, 2026, with prices from £1,047 to £5,583, a £4,535 spread on the same certified stone. Brilliant Earth lists it at £5,583. 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
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845618761
Dimensions17.04 × 9.04 × 5.76 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.04 mm9.04 mm5.09 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845618761
Side View
Table 59.0%Crown 34.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £5,583 GBP|Low: £1,047 GBP|High: £8,978 GBP|Avg: £2,340 GBP|-37.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 3£1,047 GBP
Retailer 10£1,060 GBP
Retailer 13£1,094 GBP
Retailer 4£1,437 GBP
Retailer 9£1,452 GBP
Retailer 7£1,717 GBP
Retailer 16£1,970 GBP
Retailer 8£2,024 GBP
Retailer 11£2,040 GBP
Retailer 2£2,775 GBP
Retailer 14£2,778 GBP
Retailer 5£3,029 GBP
Retailer 12£3,244 GBP
Retailer 6£3,516 GBP
Retailer 15£3,638 GBP
Brilliant Earth£5,583 GBP

10 data points across 16 retailers

16 retailers£1,047 GBP to £5,583 GBP

A
Cheapest Retailer
-
£1,047 GBP
$1,403 USD
Final sale: no returns
A
Retailer 2
-
£1,060 GBP
$1,420 USD
View
A
Retailer 3
-
£1,094 GBP
View
A
Retailer 4
-
£1,437 GBP
$1,925 USD
View
A
Retailer 5
-
£1,452 GBP
View
Retailer 6
-
£1,717 GBP
€2,191 EUR
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£1,970 GBP
$2,640 USD
View
B+
Retailer 8
-
£2,024 GBP
$2,712 USD
View
B+
Retailer 9
-
£2,040 GBP
ZAR 44,166 ZAR
View
B
Retailer 10
-
£2,775 GBP
View
B+
Retailer 11
-
£2,778 GBP
$3,722 USD
View
B
Retailer 12
-
£3,029 GBP
$4,059 USD
View
B
Retailer 13
-
£3,244 GBP
View
B
Retailer 14
-
£3,516 GBP
$4,711 USD
View
B
Retailer 15
-
£3,638 GBP
$4,874 USD
View
Most Expensive
B
Brilliant Earth
22284482A · Oct 31
£5,583 GBP
$7,480 USD
View
15 more retailers have this diamond
Prices start from £1,047 GBPSave up to £4,535 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
£1,047 GBP