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Marquise|Lab Grown|IGI

1.51ct E VS2 Marquise Lab Grown Diamond

ID • E/VS2 • IGI LG837653378

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837653378

Diamond specifications and retailer prices

From £179 GBP
$238 USD
As of October 27, 2026
Save £1,195 GBP (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,374 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 LG837653378 or 837653378. Listed at 17 retailers as of October 27, 2026, with prices from £179 to £1,374, a £1,195 spread on the same certified stone. Brilliant Earth lists it at £1,374. 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 angle31.5°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837653378
Dimensions12.32 × 6.11 × 3.48 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.32 mm6.11 mm1.51 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837653378
Side View
Table 65.0%Crown 31.5°Girdle: STK-THKPavilion 37.7°Culet: NoneDepth 57.0%

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 27
Current: £1,374 GBP|Low: £171 GBP|High: £1,374 GBP|Avg: £562 GBP
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
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Retailer 17
October 29, 2026
Retailer 16£179 GBP
Retailer 6£200 GBP
Retailer 4£222 GBP
Retailer 17£222 GBP
Retailer 2£260 GBP
Retailer 15£299 GBP
Retailer 8£375 GBP
Retailer 12£399 GBP
Retailer 11£417 GBP
Retailer 10£698 GBP
Retailer 7£712 GBP
Retailer 14£714 GBP
Retailer 9£751 GBP
Retailer 13£888 GBP
Retailer 5£900 GBP
Retailer 3£987 GBP
Brilliant Earth£1,374 GBP

35 data points across 17 retailers

17 retailers£179 GBP to £1,374 GBP

A
Cheapest Retailer
-
£179 GBP
$238 USD
A
Retailer 2
-
£200 GBP
$266 USD
View
Final sale: no returns
A
Retailer 3
-
£222 GBP
$295 USD
View
A
Retailer 4
-
£222 GBP
$295 USD
View
A
Retailer 5
-
£260 GBP
View
B+
Retailer 6
-
£299 GBP
$398 USD
View
A
Retailer 7
-
£375 GBP
$500 USD
View
A
Retailer 8
-
£399 GBP
€506 EUR
View
A
Retailer 9
-
£417 GBP
View
B+
Retailer 10
-
£698 GBP
A$1,430 AUD
View
B+
Retailer 11
-
£712 GBP
$948 USD
View
B+
Retailer 12
-
£714 GBP
$951 USD
View
B+
Retailer 13
-
£751 GBP
$1,000 USD
View
B
Retailer 14
-
£888 GBP
View
B
Retailer 15
-
£900 GBP
$1,199 USD
View
B
Retailer 16
-
£987 GBP
$1,314 USD
View
Most Expensive
B
Brilliant Earth
21659077A · Oct 28
£1,374 GBP
$1,830 USD
View
16 more retailers have this diamond
Prices start from £179 GBPSave up to £1,195 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
£179 GBP