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Marquise|Lab Grown|IGI

5.09ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG702593012

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG702593012

Diamond specifications and retailer prices

From £1,114 GBP
$1,493 USD
As of October 30, 2026
Save £6,551 GBP (85%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £9,023 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 LG702593012 or 702593012. Listed at 25 retailers as of October 30, 2026, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG702593012
Dimensions18.10 × 8.97 × 5.52 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Top View
18.10 mm8.97 mm5.09 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG702593012
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
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: Oct 30
Current: £9,023 GBP|Low: £1,069 GBP|High: £9,187 GBP|Avg: £2,734 GBP|-1.8%
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
November 1, 2026
Retailer 13£1,114 GBP
Retailer 14£1,293 GBP
Retailer 10£1,356 GBP
Retailer 12£1,422 GBP
Retailer 5£1,445 GBP
Retailer 4£1,811 GBP
Retailer 8£2,022 GBP
Retailer 7£2,892 GBP
Retailer 11£2,899 GBP
Retailer 6£2,957 GBP
Retailer 3£3,484 GBP
Retailer 9£3,943 GBP
Retailer 2£4,075 GBP
Brilliant Earth£9,023 GBP

37 data points across 14 retailers

25 retailers£1,114 GBP to £7,665 GBP

Retailer 1
-
£1,114 GBP
$1,493 USD
Price last confirmed 24 days ago
A
Retailer 2
-
£1,114 GBP
$1,493 USD
View
Retailer 3
-
£1,213 GBP
$1,625 USD
View
Price last confirmed 33 days ago
Retailer 4
-
£1,293 GBP
$1,732 USD
View
Price last confirmed 29 days ago
Retailer 5
-
£1,293 GBP
$1,732 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
£1,356 GBP
$1,817 USD
View
Final sale: no returns
A
Retailer 7
-
£1,422 GBP
$1,905 USD
View
A
Retailer 8
-
£1,445 GBP
$1,936 USD
View
B+
Retailer 9
-
£1,570 GBP
$2,104 USD
View
B+
Retailer 10
-
£1,811 GBP
$2,426 USD
View
B+
Retailer 11
-
£2,022 GBP
View
Retailer 12
-
£2,072 GBP
View
Price last confirmed 11 days ago
B+
Retailer 13
-
£2,346 GBP
$3,144 USD
View
Retailer 14
-
£2,675 GBP
$3,584 USD
View
Price last confirmed 32 days ago
B
Retailer 15
-
£2,675 GBP
$3,584 USD
View
B
Retailer 16
-
£2,892 GBP
A$5,961 AUD
View
B+
Retailer 17
-
£2,899 GBP
ZAR 62,756 ZAR
View
B
Retailer 18
-
£2,957 GBP
View
B
Retailer 19
-
£3,484 GBP
$4,668 USD
View
B
Retailer 20
-
£3,744 GBP
$5,016 USD
View
B
Retailer 21
-
£3,943 GBP
A$8,129 AUD
View
B
Retailer 22
-
£4,075 GBP
View
B
Retailer 23
-
£5,023 GBP
$6,730 USD
View
B
Retailer 24
-
£7,665 GBP
$10,270 USD
View
Most Expensive
Brilliant Earth
17443673A · Oct 31
£9,023 GBP
$12,090 USD
View
Price under review
24 more retailers have this diamond
Prices start from £1,114 GBPSave up to £6,551 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
£1,114 GBP