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Marquise|Lab Grown|IGI

3.09ct E VS1 Marquise Lab Grown Diamond

VG • E/VS1 • IGI LG831681236

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831681236

Diamond specifications and retailer prices

From £376 GBP
$504 USD
As of October 30, 2026
Save £2,363 GBP (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,739 GBP at Brilliant Earth · As of October 30, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831681236 or 831681236. Listed at 17 retailers as of October 30, 2026, with prices from £376 to £2,739, a £2,363 spread on the same certified stone. Brilliant Earth lists it at £2,739. 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
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831681236
Dimensions15.20 × 7.65 × 4.67 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.20 mm7.65 mm3.09 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831681236
Side View
Table 61.0%Crown 35.3°Girdle: MediumPavilion 39.6°Culet: NoneDepth 61.0%

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 30
Current: £2,739 GBP|Low: £376 GBP|High: £3,224 GBP|Avg: £1,181 GBP|-15.0%
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
Retailer 17
October 30, 2026
Retailer 2£376 GBP
Retailer 14£420 GBP
Retailer 15£466 GBP
Retailer 11£533 GBP
Retailer 16£571 GBP
Retailer 6£725 GBP
Retailer 12£776 GBP
Retailer 13£984 GBP
Retailer 8£999 GBP
Retailer 3£1,012 GBP
Retailer 5£1,226 GBP
Retailer 17£1,476 GBP
Retailer 9£1,517 GBP
Retailer 10£1,614 GBP
Retailer 4£1,628 GBP
Retailer 7£2,097 GBP
Brilliant Earth£2,739 GBP

5 data points across 17 retailers

17 retailers£376 GBP to £2,739 GBP

A
Cheapest Retailer
-
£376 GBP
$504 USD
A
Retailer 2
-
£420 GBP
$563 USD
View
Final sale: no returns
A
Retailer 3
-
£466 GBP
$624 USD
View
A
Retailer 4
-
£533 GBP
View
A
Retailer 5
-
£571 GBP
$765 USD
View
A
Retailer 6
-
£725 GBP
$971 USD
View
A
Retailer 7
-
£776 GBP
View
B+
Retailer 8
-
£984 GBP
A$2,029 AUD
View
B+
Retailer 9
-
£999 GBP
$1,338 USD
View
B+
Retailer 10
-
£1,012 GBP
ZAR 21,901 ZAR
View
B+
Retailer 11
-
£1,226 GBP
$1,643 USD
View
B+
Retailer 12
-
£1,476 GBP
SGD 2,672 SGD
View
B+
Retailer 13
-
£1,517 GBP
$2,033 USD
View
B
Retailer 14
-
£1,614 GBP
$2,162 USD
View
B
Retailer 15
-
£1,628 GBP
$2,181 USD
View
B
Retailer 16
-
£2,097 GBP
$2,810 USD
View
Most Expensive
B
Brilliant Earth
22347787A · Oct 30
£2,739 GBP
$3,670 USD
View
16 more retailers have this diamond
Prices start from £376 GBPSave up to £2,363 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
£376 GBP