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Marquise|Lab Grown|IGI

1.02ct F SI1 Marquise Lab Grown Diamond

VG • F/SI1 • IGI LG839608058

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839608058

Diamond specifications and retailer prices

From £159 GBP
As of November 2, 2026
Save £865 GBP (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,024 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.02ct lab-grown marquise diamond

This 1.02ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG839608058 or 839608058. Listed at 8 retailers as of November 1, 2026, with prices from £159 to £1,024, a £865 spread on the same certified stone. MOH London lists it at £1,024. 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

1.02
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839608058
Dimensions10.42 × 5.11 × 3.28 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.42 mm5.11 mm1.02 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839608058
Side View
Table 59.0%Crown 37.1°Girdle: Slightly ThickPavilion 40°Culet: NoneDepth 64.2%

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: Nov 2
Current: £1,024 GBP|Low: £159 GBP|High: £1,059 GBP|Avg: £360 GBP|-3.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3£159 GBP
Retailer 4£207 GBP
Retailer 6£224 GBP
Retailer 7£232 GBP
Retailer 5£233 GBP
Retailer 2£417 GBP
MOH London£1,024 GBP

20 data points across 7 retailers

8 retailers£159 GBP to £1,024 GBP

A
Cheapest Retailer
-
£159 GBP
A
Retailer 2
-
£207 GBP
View
A
Retailer 3
-
£224 GBP
$300 USD
View
A
Retailer 4
-
£232 GBP
$311 USD
View
A
Retailer 5
-
£233 GBP
View
B+
Retailer 6
-
£361 GBP
$485 USD
View
B
Retailer 7
-
£417 GBP
$559 USD
View
Most Expensive
B
MOH London
LG839608058 · Nov 1
£1,024 GBP
View
7 more retailers have this diamond
Prices start from £159 GBPSave up to £865 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
1.02ct Marquise
£159 GBP