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Marquise|Lab Grown|IGI

3.51ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG841641096

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841641096

Diamond specifications and retailer prices

From £329 GBP
$441 USD
As of October 30, 2026
Save £2,384 GBP (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,712 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG841641096 or 841641096. Listed at 18 retailers as of October 30, 2026, with prices from £329 to £2,712, a £2,384 spread on the same certified stone. Brilliant Earth lists it at £2,712. 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

3.51
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841641096
Dimensions15.44 × 8.02 × 5.02 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.44 mm8.02 mm3.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841641096
Side View
Table 60.0%Crown 35.9°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.6%

Caratlytics Score

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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 30
Current: £2,712 GBP|Low: £329 GBP|High: £2,712 GBP|Avg: £942 GBP
Brilliant Earth
Retailer 2
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Retailer 18
November 2, 2026
Retailer 3£329 GBP
Retailer 17£368 GBP
Retailer 9£408 GBP
Retailer 16£408 GBP
Retailer 12£454 GBP
Retailer 15£514 GBP
Retailer 4£640 GBP
Retailer 2£668 GBP
Retailer 18£700 GBP
Retailer 13£861 GBP
Retailer 14£885 GBP
Retailer 7£894 GBP
Retailer 6£1,096 GBP
Retailer 8£1,311 GBP
Retailer 10£1,335 GBP
Retailer 11£1,498 GBP
Retailer 5£1,525 GBP
Brilliant Earth£2,712 GBP

13 data points across 18 retailers

18 retailers£329 GBP to £2,712 GBP

A
Cheapest Retailer
-
£329 GBP
$441 USD
A
Retailer 2
-
£368 GBP
$494 USD
View
Retailer 3
-
£408 GBP
$547 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
£408 GBP
$547 USD
View
A
Retailer 5
-
£454 GBP
View
A
Retailer 6
-
£514 GBP
$690 USD
View
B+
Retailer 7
-
£640 GBP
$859 USD
View
A
Retailer 8
-
£668 GBP
View
A
Retailer 9
-
£700 GBP
$940 USD
View
B+
Retailer 10
-
£861 GBP
A$1,778 AUD
View
B+
Retailer 11
-
£885 GBP
ZAR 19,189 ZAR
View
B+
Retailer 12
-
£894 GBP
$1,200 USD
View
B+
Retailer 13
-
£1,096 GBP
$1,471 USD
View
B+
Retailer 14
-
£1,311 GBP
$1,759 USD
View
B+
Retailer 15
-
£1,335 GBP
$1,792 USD
View
B+
Retailer 16
-
£1,498 GBP
View
B
Retailer 17
-
£1,525 GBP
$2,047 USD
View
Most Expensive
B
Brilliant Earth
22221993A · Oct 31
£2,712 GBP
$3,640 USD
View
17 more retailers have this diamond
Prices start from £329 GBPSave up to £2,384 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
3.51ct Marquise
£329 GBP