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Marquise|Lab Grown|IGI

3.09ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG839682444

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839682444

Diamond specifications and retailer prices

From £392 GBP
As of October 29, 2026
Save £2,616 GBP (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,008 GBP at Brilliant Earth · As of October 28, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839682444 or 839682444. Listed at 11 retailers as of October 28, 2026, with prices from £392 to £3,008, a £2,616 spread on the same certified stone. Brilliant Earth lists it at £3,008. 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
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839682444
Dimensions14.76 × 7.57 × 4.70 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.76 mm7.57 mm3.09 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839682444
Side View
Table 61.0%Crown 36.1°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
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 29
Current: £3,008 GBP|Low: £390 GBP|High: £3,008 GBP|Avg: £965 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4£392 GBP
Retailer 10£455 GBP
Retailer 3£470 GBP
Retailer 7£599 GBP
Retailer 5£722 GBP
Retailer 8£732 GBP
Retailer 6£741 GBP
Retailer 9£1,002 GBP
Retailer 11£1,128 GBP
Retailer 2£1,342 GBP
Brilliant Earth£3,008 GBP

18 data points across 11 retailers

11 retailers£392 GBP to £3,008 GBP

A
Cheapest Retailer
-
£392 GBP
A
Retailer 2
-
£455 GBP
$610 USD
View
B+
Retailer 3
-
£470 GBP
$630 USD
View
A
Retailer 4
-
£599 GBP
€764 EUR
View
A
Retailer 5
-
£722 GBP
A$1,489 AUD
View
A
Retailer 6
-
£732 GBP
$981 USD
View
A
Retailer 7
-
£741 GBP
ZAR 16,049 ZAR
View
A
Retailer 8
-
£1,002 GBP
$1,342 USD
View
A
Retailer 9
-
£1,128 GBP
$1,511 USD
View
A
Retailer 10
-
£1,342 GBP
View
Most Expensive
B
Brilliant Earth
21832027A · Oct 28
£3,008 GBP
$4,030 USD
View
10 more retailers have this diamond
Prices start from £392 GBPSave up to £2,616 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
£392 GBP