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Marquise|Lab Grown|IGI

1.25ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG843658928

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843658928

Diamond specifications and retailer prices

From £199 GBP
As of November 1, 2026
Save £563 GBP (74%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £762 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.25ct lab-grown marquise diamond

This 1.25ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG843658928 or 843658928. Listed at 10 retailers as of October 29, 2026, with prices from £199 to £762, a £563 spread on the same certified stone. MOH London lists it at £762. 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

1.25
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843658928
Dimensions11.40 × 5.58 × 3.50 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
11.40 mm5.58 mm1.25 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843658928
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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 1
Current: £762 GBP|Low: £198 GBP|High: £888 GBP|Avg: £431 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4£199 GBP
Retailer 3£280 GBP
Retailer 8£288 GBP
Retailer 5£291 GBP
Retailer 9£342 GBP
Retailer 2£395 GBP
Retailer 7£551 GBP
Retailer 10£562 GBP
Retailer 6£634 GBP
MOH London£762 GBP

12 data points across 10 retailers

10 retailers£199 GBP to £762 GBP

A
Cheapest Retailer
-
£199 GBP
A
Retailer 2
-
£280 GBP
ZAR 6,059 ZAR
View
A
Retailer 3
-
£288 GBP
$386 USD
View
A
Retailer 4
-
£291 GBP
View
A
Retailer 5
-
£342 GBP
$458 USD
View
B+
Retailer 6
-
£395 GBP
A$815 AUD
View
B
Retailer 7
-
£551 GBP
$738 USD
View
B
Retailer 8
-
£562 GBP
$753 USD
View
B
Retailer 9
-
£634 GBP
$850 USD
View
Most Expensive
B
MOH London
LG843658928 · Oct 29
£762 GBP
View
9 more retailers have this diamond
Prices start from £199 GBPSave up to £563 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
1.25ct Marquise
£199 GBP