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Marquise|Lab Grown|IGI

0.91ct G SI1 Marquise Lab Grown Diamond

VG • G/SI1 • IGI LG852610183

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG852610183

Diamond specifications and retailer prices

From £215 GBP
As of November 3, 2026
Save £381 GBP (64%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £596 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.91ct lab-grown marquise diamond

This 0.91ct lab-grown marquise sits in the just-under-one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG852610183 or 852610183. Listed at 6 retailers as of November 2, 2026, with prices from £215 to £596, a £381 spread on the same certified stone. MOH London lists it at £596. 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

0.91
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG852610183
Dimensions10.56 × 4.98 × 3.05 mm
L/W Ratio2.12
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.56 mm4.98 mm0.91 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG852610183
Side View
Table 59.0%Crown 32.3°Girdle: MED-STKPavilion 39.2°CuletDepth 61.2%

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 3
Current: £596 GBP|Low: £215 GBP|High: £596 GBP|Avg: £362 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 2£215 GBP
Retailer 3£238 GBP
Retailer 4£262 GBP
Retailer 5£451 GBP
MOH London£596 GBP

3 data points across 5 retailers

6 retailers£215 GBP to £596 GBP

A
Cheapest Retailer
-
£215 GBP
A
Retailer 2
-
£238 GBP
$319 USD
View
B+
Retailer 3
-
£262 GBP
View
B+
Retailer 4
-
£320 GBP
$430 USD
View
B
Retailer 5
-
£451 GBP
$606 USD
View
Most Expensive
B
MOH London
LG852610183 · Nov 2
£596 GBP
View
5 more retailers have this diamond
Prices start from £215 GBPSave up to £381 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
0.91ct Marquise
£215 GBP