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Marquise|Lab Grown|IGI

3.09ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG836678012

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG836678012

Diamond specifications and retailer prices

From £466 GBP
As of November 4, 2026
Save £2,246 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,712 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 3.09ct lab-grown marquise diamond

This 3.09ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG836678012 or 836678012. Listed at 19 retailers as of November 3, 2026, with prices from £466 to £2,712, a £2,246 spread on the same certified stone. Brilliant Earth lists it at £2,712. 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
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836678012
Dimensions15.43 × 7.55 × 4.50 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.43 mm7.55 mm3.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836678012
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 59.6%

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: Nov 4
Current: £2,712 GBP|Low: £350 GBP|High: £3,210 GBP|Avg: £997 GBP|-9.4%
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
November 5, 2026
Retailer 8£350 GBP
Retailer 7£392 GBP
Retailer 5£466 GBP
Retailer 11£484 GBP
Retailer 16£531 GBP
Retailer 4£654 GBP
Retailer 12£665 GBP
Retailer 2£698 GBP
Retailer 10£899 GBP
Retailer 13£924 GBP
Retailer 14£1,143 GBP
Retailer 15£1,348 GBP
Retailer 3£1,493 GBP
Retailer 9£1,559 GBP
Retailer 6£1,902 GBP
Brilliant Earth£2,712 GBP

32 data points across 16 retailers

19 retailers£466 GBP to £2,712 GBP

Retailer 1
-
£350 GBP
Price last confirmed 19 days ago
Retailer 2
-
£392 GBP
View
Price last confirmed 21 days ago
Retailer 3
-
£434 GBP
View
Price last confirmed 20 days ago
Retailer 4
-
£434 GBP
View
Price last confirmed 33 days ago
A
Retailer 5
-
£466 GBP
View
A
Retailer 6
-
£484 GBP
View
A
Retailer 7
-
£531 GBP
View
Retailer 8
-
£654 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£665 GBP
View
A
Retailer 10
-
£698 GBP
View
A
Retailer 11
-
£899 GBP
View
A
Retailer 12
-
£924 GBP
View
B+
Retailer 13
-
£1,143 GBP
View
B+
Retailer 14
-
£1,348 GBP
View
Retailer 15
-
£1,395 GBP
View
Price last confirmed 20 days ago
B+
Retailer 16
-
£1,493 GBP
View
B+
Retailer 17
-
£1,559 GBP
View
Retailer 18
-
£1,902 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21573143A · Nov 3
£2,712 GBP
$3,650 USD
View
18 more retailers have this diamond
Prices start from £466 GBPSave up to £2,246 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
£466 GBP