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Marquise|Lab Grown|IGI

0.77ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG651490565

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG651490565

Diamond specifications and retailer prices

From £98 GBP
$131 USD
As of October 28, 2026
Save £787 GBP (89%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £885 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.77ct lab-grown marquise diamond

This 0.77ct lab-grown marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG651490565 or 651490565. Listed at 9 retailers as of October 28, 2026, with prices from £98 to £885, a £787 spread on the same certified stone. MOH London lists it at £885. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.77
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651490565
Dimensions9.19 × 4.79 × 3.01 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.19 mm4.79 mm0.77 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651490565
Side View
Table 53.0%Crown 35.1°Girdle: STK-THKPavilion 39°Culet: NoneDepth 62.8%

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 28
Current: £885 GBP|Low: £98 GBP|High: £885 GBP|Avg: £259 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 14
October 29, 2026
Retailer 10£98 GBP
Retailer 7£112 GBP
Retailer 13£125 GBP
Retailer 11£128 GBP
Retailer 3£170 GBP
Retailer 12£208 GBP
Retailer 2£213 GBP
Retailer 14£230 GBP
Retailer 5£268 GBP
Retailer 8£285 GBP
Retailer 9£339 GBP
Retailer 6£368 GBP
Retailer 4£446 GBP
MOH London£885 GBP

2 data points across 14 retailers

9 retailers£98 GBP to £885 GBP

A
Cheapest Retailer
-
£98 GBP
$131 USD
A
Retailer 2
-
£112 GBP
$149 USD
View
A
Retailer 3
-
£125 GBP
HK$1,300 HKD
View
B+
Retailer 4
-
£208 GBP
$277 USD
View
B+
Retailer 5
-
£213 GBP
View
B+
Retailer 6
-
£230 GBP
View
B
Retailer 7
-
£285 GBP
$380 USD
View
B
Retailer 8
-
£339 GBP
$451 USD
View
Most Expensive
B
MOH London
LG651490565 · Oct 29
£885 GBP
View
8 more retailers have this diamond
Prices start from £98 GBPSave up to £787 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
0.77ct Marquise
£98 GBP