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Marquise|Lab Grown|IGI

1.02ct F SI1 Marquise Lab Grown Diamond

VG • F/SI1 • IGI LG843614076

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843614076

Diamond specifications and retailer prices

From £172 GBP
As of November 2, 2026
Save £448 GBP (72%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £620 GBP at MOH London · As of November 2, 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 LG843614076 or 843614076. Listed at 7 retailers as of November 2, 2026, with prices from £172 to £620, a £448 spread on the same certified stone. MOH London lists it at £620. 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 angle27.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843614076
Dimensions10.83 × 5.23 × 3.17 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.83 mm5.23 mm1.02 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843614076
Side View
Table 56.0%Crown 27.5°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.6%

Caratlytics Score

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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: £620 GBP|Low: £172 GBP|High: £637 GBP|Avg: £294 GBP|-2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 4£172 GBP
Retailer 6£227 GBP
Retailer 2£228 GBP
Retailer 7£247 GBP
Retailer 5£252 GBP
Retailer 3£450 GBP
MOH London£620 GBP

18 data points across 7 retailers

7 retailers£172 GBP to £620 GBP

A
Cheapest Retailer
-
£172 GBP
A
Retailer 2
-
£227 GBP
$304 USD
View
A
Retailer 3
-
£228 GBP
View
A
Retailer 4
-
£247 GBP
$331 USD
View
A
Retailer 5
-
£252 GBP
View
B
Retailer 6
-
£450 GBP
$604 USD
View
Most Expensive
B
MOH London
LG843614076 · Nov 2
£620 GBP
View
6 more retailers have this diamond
Prices start from £172 GBPSave up to £448 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
£172 GBP