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Marquise|Lab Grown|IGI

1.29ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG794663012

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG794663012

Diamond specifications and retailer prices

From £311 GBP
As of November 5, 2026
Save £875 GBP (74%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,186 GBP at Michael Trio · As of November 6, 2026
View at Michael Trio

About this 1.29ct lab-grown marquise diamond

This 1.29ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG794663012 or 794663012. Listed at 5 retailers as of November 5, 2026, with prices from £311 to £1,186, a £875 spread on the same certified stone. Michael Trio lists it at £1,186. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794663012
Dimensions11.73 × 5.48 × 3.47 mm
L/W Ratio2.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.73 mm5.48 mm1.29 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794663012
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 63.3%

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 5
Current: £1,186 GBP|Low: £252 GBP|High: £1,186 GBP|Avg: £560 GBP|+18.7%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 9£252 GBP
Retailer 4£258 GBP
Retailer 5£311 GBP
Retailer 8£353 GBP
Retailer 10£386 GBP
Retailer 6£530 GBP
Retailer 2£641 GBP
Retailer 11£676 GBP
Retailer 12£702 GBP
Retailer 7£770 GBP
Retailer 3£849 GBP
Michael Trio£1,186 GBP

10 data points across 12 retailers

5 retailers£311 GBP to £1,186 GBP

A
Cheapest Retailer
-
£311 GBP
B+
Retailer 2
-
£530 GBP
View
B
Retailer 3
-
£641 GBP
View
B
Retailer 4
-
£770 GBP
View
Most Expensive
B
Michael Trio
1590312409 · Nov 6
£1,186 GBP
SGD 2,145 SGD
View
4 more retailers have this diamond
Prices start from £311 GBPSave up to £875 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
1.29ct Marquise
£311 GBP