Marquise|Lab Grown|IGI

1.51ct H VS1 Marquise Lab Grown Diamond

EX • H/VS1 • IGI LG848646844

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG848646844

Diamond specifications and retailer prices

From £368 GBP
$493 USD
As of October 31, 2026
Save £506 GBP (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £874 GBP at MOH London · As of October 26, 2026
View at MOH London

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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG848646844 or 848646844. Listed at 7 retailers as of October 26, 2026, with prices from £368 to £874, a £506 spread on the same certified stone. MOH London lists it at £874. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848646844
Dimensions11.89 × 6.03 × 3.64 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.89 mm6.03 mm1.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848646844
Side View
Table 62.0%Crown 36.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.4%

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 31
Current: £874 GBP|Low: £363 GBP|High: £874 GBP|Avg: £535 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 3£363 GBP
Retailer 6£368 GBP
Retailer 2£375 GBP
Retailer 5£461 GBP
Retailer 4£675 GBP
Retailer 7£739 GBP
MOH London£874 GBP

6 data points across 7 retailers

7 retailers£368 GBP to £874 GBP

Retailer 1
-
£363 GBP
€463 EUR
Price last confirmed 8 days ago
A
Retailer 2
-
£368 GBP
$493 USD
View
A
Retailer 3
-
£375 GBP
$502 USD
View
A
Retailer 4
-
£461 GBP
$618 USD
View
Retailer 5
-
£675 GBP
$905 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£739 GBP
$991 USD
View
Most Expensive
B
MOH London
LG848646844 · Oct 26
£874 GBP
View
6 more retailers have this diamond
Prices start from £368 GBPSave up to £506 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
£368 GBP