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Marquise|Lab Grown|IGI

5.09ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG831617245

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831617245

Diamond specifications and retailer prices

From £1,173 GBP
$1,572 USD
As of October 31, 2026
Save £5,783 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £6,956 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG831617245 or 831617245. Listed at 18 retailers as of October 31, 2026, with prices from £1,173 to £6,956, a £5,783 spread on the same certified stone. Do Amore Diamonds lists it at £6,956. 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 angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831617245
Dimensions18.12 × 8.96 × 5.58 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.12 mm8.96 mm5.09 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831617245
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

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: Oct 31
Current: £6,956 GBP|Low: £1,039 GBP|High: £8,239 GBP|Avg: £2,746 GBP|-15.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
November 1, 2026
Retailer 4£1,173 GBP
Retailer 13£1,299 GBP
Retailer 15£1,409 GBP
Retailer 18£1,567 GBP
Retailer 17£1,649 GBP
Retailer 3£1,671 GBP
Retailer 9£1,885 GBP
Retailer 14£1,969 GBP
Retailer 16£2,186 GBP
Retailer 11£2,623 GBP
Retailer 10£2,668 GBP
Retailer 7£2,889 GBP
Retailer 6£3,118 GBP
Retailer 2£3,698 GBP
Retailer 12£3,874 GBP
Retailer 5£4,239 GBP
Retailer 8£4,252 GBP
Do Amore Diamonds£6,956 GBP

24 data points across 18 retailers

18 retailers£1,173 GBP to £6,956 GBP

Retailer 1
-
£891 GBP
$1,194 USD
Price last confirmed 30 days ago
Retailer 2
-
£1,077 GBP
$1,443 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
£1,173 GBP
$1,572 USD
View
Final sale: no returns
A
Retailer 4
-
£1,299 GBP
$1,740 USD
View
Retailer 5
-
£1,409 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
£1,567 GBP
$2,099 USD
View
B+
Retailer 7
-
£1,649 GBP
$2,210 USD
View
B+
Retailer 8
-
£1,671 GBP
$2,240 USD
View
B+
Retailer 9
-
£1,969 GBP
€2,512 EUR
View
B+
Retailer 10
-
£2,186 GBP
$2,929 USD
View
B
Retailer 11
-
£2,623 GBP
A$5,408 AUD
View
Retailer 12
-
£2,889 GBP
View
Price last confirmed 26 days ago
Retailer 13
-
£3,118 GBP
$4,178 USD
View
Price last confirmed 25 days ago
B
Retailer 14
-
£3,698 GBP
View
B
Retailer 15
-
£3,874 GBP
A$7,986 AUD
View
Retailer 16
-
£4,239 GBP
$5,680 USD
View
Price last confirmed 25 days ago
Retailer 17
-
£4,252 GBP
$5,697 USD
View
Price last confirmed 26 days ago
Most Expensive
B
Do Amore Diamonds
27-5497B4DFF · Oct 31
£6,956 GBP
$9,320 USD
View
17 more retailers have this diamond
Prices start from £1,173 GBPSave up to £5,783 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
£1,173 GBP