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Marquise|Lab Grown|IGI

3.09ct I VS1 Marquise Lab Grown Diamond

EX • I/VS1 • IGI LG846648114

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846648114

Diamond specifications and retailer prices

From £503 GBP
$674 USD
As of October 27, 2026
Save £1,959 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,462 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 3.09ct lab-grown marquise diamond

This 3.09ct lab-grown marquise sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846648114 or 846648114. Listed at 12 retailers as of October 26, 2026, with prices from £503 to £2,462, a £1,959 spread on the same certified stone. MOH London lists it at £2,462. 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

3.09
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846648114
Dimensions14.72 × 7.51 × 4.83 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.72 mm7.51 mm3.09 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846648114
Side View
Table 62.0%Crown 37.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 64.3%

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 27
Current: £2,462 GBP|Low: £503 GBP|High: £2,567 GBP|Avg: £1,236 GBP|+19.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 9£503 GBP
Retailer 10£563 GBP
Retailer 8£716 GBP
Retailer 4£735 GBP
Retailer 11£832 GBP
Retailer 3£868 GBP
Retailer 5£934 GBP
Retailer 2£1,273 GBP
Retailer 7£1,578 GBP
Retailer 6£1,672 GBP
Retailer 12£2,014 GBP
MOH London£2,462 GBP

7 data points across 12 retailers

12 retailers£503 GBP to £2,462 GBP

A
Cheapest Retailer
-
£503 GBP
$674 USD
A
Retailer 2
-
£563 GBP
$755 USD
View
Final sale: no returns
A
Retailer 3
-
£716 GBP
$960 USD
View
Retailer 4
-
£735 GBP
€938 EUR
View
Price last confirmed 7 days ago
B+
Retailer 5
-
£832 GBP
$1,115 USD
View
A
Retailer 6
-
£868 GBP
$1,163 USD
View
A
Retailer 7
-
£934 GBP
$1,251 USD
View
B+
Retailer 8
-
£1,273 GBP
$1,706 USD
View
B+
Retailer 9
-
£1,578 GBP
$2,115 USD
View
B+
Retailer 10
-
£1,672 GBP
$2,240 USD
View
B
Retailer 11
-
£2,014 GBP
$2,698 USD
View
Most Expensive
B
MOH London
LG846648114 · Oct 26
£2,462 GBP
View
11 more retailers have this diamond
Prices start from £503 GBPSave up to £1,959 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
3.09ct Marquise
£503 GBP