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Heart|Lab Grown|IGI

1.27ct F VS1 Heart Lab Grown Diamond

F/VS1 • IGI LG600346771

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG600346771

Diamond specifications and retailer prices

From £187 GBP
As of November 4, 2026
Save £703 GBP (79%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £890 GBP at Michael Trio · As of November 4, 2026
View at Michael Trio

About this 1.27ct lab-grown heart diamond

This 1.27ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included) and certified by IGI LG600346771 or 600346771. Listed at 6 retailers as of November 4, 2026, with prices from £187 to £890, a £703 spread on the same certified stone. Michael Trio lists it at £890. 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
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600346771
Dimensions6.64 × 7.65 × 4.46 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.64 mm7.65 mm1.27 ctF / VS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600346771
Side View
Table 57.0%Crown 33.8°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 58.3%

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 4
Current: £890 GBP|Low: £187 GBP|High: £890 GBP|Avg: £447 GBP
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 4£187 GBP
Retailer 5£287 GBP
Retailer 6£304 GBP
Retailer 2£452 GBP
Retailer 3£562 GBP
Michael Trio£890 GBP

9 data points across 6 retailers

6 retailers£187 GBP to £890 GBP

A
Cheapest Retailer
-
£187 GBP
Final sale: no returns
B+
Retailer 2
-
£287 GBP
View
B+
Retailer 3
-
£304 GBP
View
B
Retailer 4
-
£452 GBP
View
Retailer 5
-
£562 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Michael Trio
1971242234 · Nov 4
£890 GBP
SGD 1,619 SGD
View
5 more retailers have this diamond
Prices start from £187 GBPSave up to £703 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 Heart
£187 GBP