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Marquise|Lab Grown|IGI

1.51ct E VS2 Marquise Lab Grown Diamond

ID • E/VS2 • IGI LG830643333

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830643333

Diamond specifications and retailer prices

From £175 GBP
$233 USD
As of October 23, 2026
Save £750 GBP (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £926 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG830643333 or 830643333. Listed at 19 retailers as of October 23, 2026, with prices from £175 to £926, a £750 spread on the same certified stone. Brilliant Earth lists it at £926. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830643333
Dimensions11.67 × 6.19 × 3.66 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.67 mm6.19 mm1.51 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830643333
Side View
Table 61.0%Crown 30.8°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 59.1%

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 23
Current: £926 GBP|Low: £167 GBP|High: £926 GBP|Avg: £496 GBP
Brilliant Earth
Retailer 2
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Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 19
October 27, 2026
Retailer 17£175 GBP
Retailer 7£196 GBP
Retailer 15£203 GBP
Retailer 18£217 GBP
Retailer 9£241 GBP
Retailer 2£255 GBP
Retailer 13£348 GBP
Retailer 4£370 GBP
Retailer 5£385 GBP
Retailer 6£407 GBP
Retailer 12£408 GBP
Retailer 16£700 GBP
Retailer 3£702 GBP
Retailer 8£704 GBP
Retailer 10£705 GBP
Retailer 14£874 GBP
Retailer 19£885 GBP
Retailer 11£886 GBP
Brilliant Earth£926 GBP

33 data points across 19 retailers

19 retailers£175 GBP to £926 GBP

A
Cheapest Retailer
-
£175 GBP
$233 USD
A
Retailer 2
-
£196 GBP
$260 USD
View
Final sale: no returns
A
Retailer 3
-
£203 GBP
$270 USD
View
A
Retailer 4
-
£217 GBP
$289 USD
View
A
Retailer 5
-
£241 GBP
HK$2,500 HKD
View
A
Retailer 6
-
£255 GBP
View
A
Retailer 7
-
£348 GBP
€441 EUR
View
A
Retailer 8
-
£370 GBP
$491 USD
View
A
Retailer 9
-
£385 GBP
$512 USD
View
A
Retailer 10
-
£407 GBP
$541 USD
View
A
Retailer 11
-
£408 GBP
View
B+
Retailer 12
-
£700 GBP
$930 USD
View
B
Retailer 13
-
£702 GBP
$933 USD
View
B+
Retailer 14
-
£704 GBP
SGD 1,265 SGD
View
B+
Retailer 15
-
£705 GBP
A$1,441 AUD
View
Price last confirmed 28 days ago
B
Retailer 16
-
£874 GBP
View
B
Retailer 17
-
£885 GBP
$1,176 USD
View
B
Retailer 18
-
£886 GBP
$1,177 USD
View
Most Expensive
B
Brilliant Earth
21274583A · Oct 28
£926 GBP
$1,230 USD
View
18 more retailers have this diamond
Prices start from £175 GBPSave up to £750 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
1.51ct Marquise
£175 GBP