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Marquise|Lab Grown|IGI

1.27ct F VS1 Marquise Lab Grown Diamond

VG • F/VS1 • IGI LG843658992

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843658992

Diamond specifications and retailer prices

From £176 GBP
As of November 6, 2026
Save £787 GBP (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,696 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.27ct lab-grown marquise diamond

This 1.27ct 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 very-good cut grade and certified by IGI LG843658992 or 843658992. Listed at 12 retailers as of November 5, 2026, with a 447% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.27
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843658992
Dimensions10.92 × 5.72 × 3.55 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.92 mm5.72 mm1.27 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843658992
Side View
Table 60.0%Crown 35.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

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 6
Current: £1,696 GBP|Low: £176 GBP|High: £1,696 GBP|Avg: £590 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7£176 GBP
Retailer 8£205 GBP
Retailer 3£219 GBP
Retailer 2£283 GBP
Retailer 9£287 GBP
Retailer 10£370 GBP
Retailer 11£456 GBP
Retailer 6£776 GBP
Retailer 12£835 GBP
Retailer 5£902 GBP
Retailer 4£964 GBP
Do Amore Diamonds£1,696 GBP

3 data points across 12 retailers

12 retailers£176 GBP to £964 GBP

A
Cheapest Retailer
-
£176 GBP
A
Retailer 2
-
£205 GBP
View
A
Retailer 3
-
£219 GBP
View
A
Retailer 4
-
£283 GBP
View
A
Retailer 5
-
£287 GBP
View
B+
Retailer 6
-
£370 GBP
View
B+
Retailer 7
-
£456 GBP
View
B
Retailer 8
-
£776 GBP
View
B
Retailer 9
-
£835 GBP
View
B
Retailer 10
-
£902 GBP
View
B
Retailer 11
-
£964 GBP
View
Most Expensive
Do Amore Diamonds
27-2C3D0309E · Nov 6
£1,696 GBP
$2,270 USD
View
Price under review
11 more retailers have this diamond
Prices start from £176 GBPSave up to £787 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
1.27ct Marquise
£176 GBP