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Marquise|Lab Grown|IGI

3.09ct F VS1 Marquise Lab Grown Diamond

VG • F/VS1 • IGI LG830614473

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830614473

Diamond specifications and retailer prices

From £359 GBP
As of November 4, 2026
Save £2,561 GBP (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,920 GBP at Brilliant Earth · As of November 4, 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 very-good cut grade and certified by IGI LG830614473 or 830614473. Listed at 21 retailers as of November 4, 2026, with prices from £359 to £2,920, a £2,561 spread on the same certified stone. Brilliant Earth lists it at £2,920. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.09
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830614473
Dimensions14.71 × 7.93 × 4.74 mm
L/W Ratio1.85
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.71 mm7.93 mm3.09 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830614473
Side View
Table 60.0%Crown 33.3°Girdle: MED-STKPavilion 40°Culet: NoneDepth 59.8%

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: £1,851 GBP|Low: £359 GBP|High: £1,857 GBP|Avg: £932 GBP|-0.3%
Retailer 1
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Retailer 20
November 5, 2026
Retailer 20£359 GBP
Retailer 2£402 GBP
Retailer 3£418 GBP
Retailer 8£445 GBP
Retailer 11£484 GBP
Retailer 15£506 GBP
Retailer 17£550 GBP
Retailer 4£596 GBP
Retailer 7£721 GBP
Retailer 12£732 GBP
Retailer 10£923 GBP
Retailer 14£942 GBP
Retailer 19£965 GBP
Retailer 18£973 GBP
Retailer 6£1,408 GBP
Retailer 9£1,430 GBP
Retailer 13£1,450 GBP
Retailer 16£1,472 GBP
Retailer 5£1,557 GBP
Retailer 1£1,851 GBP

7 data points across 20 retailers

21 retailers£359 GBP to £2,920 GBP

A
Cheapest Retailer
-
£359 GBP
A
Retailer 2
-
£402 GBP
View
A
Retailer 3
-
£418 GBP
View
Final sale: no returns
A
Retailer 4
-
£445 GBP
View
A
Retailer 5
-
£484 GBP
View
A
Retailer 6
-
£506 GBP
View
A
Retailer 7
-
£550 GBP
View
B+
Retailer 8
-
£596 GBP
View
A
Retailer 9
-
£721 GBP
View
A
Retailer 10
-
£732 GBP
View
B+
Retailer 11
-
£923 GBP
View
B+
Retailer 12
-
£942 GBP
View
B+
Retailer 13
-
£965 GBP
View
B+
Retailer 14
-
£973 GBP
View
B+
Retailer 15
-
£1,408 GBP
View
B+
Retailer 16
-
£1,430 GBP
View
B+
Retailer 17
-
£1,450 GBP
View
B+
Retailer 18
-
£1,472 GBP
View
B
Retailer 19
-
£1,557 GBP
View
B
Retailer 20
-
£1,851 GBP
View
Most Expensive
B
Brilliant Earth
22430315A · Nov 4
£2,920 GBP
$3,930 USD
View
20 more retailers have this diamond
Prices start from £359 GBPSave up to £2,561 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
£359 GBP