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Heart|Lab Grown|IGI

0.31ct F VS1 Heart Lab Grown Diamond

VG • F/VS1 • IGI LG847661780

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG847661780

Diamond specifications and retailer prices

From £76 GBP
HK$800 HKD
As of November 1, 2026
Save £184 GBP (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £493 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.31ct lab-grown heart diamond

This 0.31ct lab-grown heart sits in the sub-half-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG847661780 or 847661780. Listed at 7 retailers as of October 27, 2026, with a 242% 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

0.31
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847661780
Dimensions4.26 × 4.79 × 2.72 mm
L/W Ratio1.12
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.26 mm4.79 mm0.31 ctF / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG847661780
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 56.8%

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: £493 GBP|Low: £76 GBP|High: £493 GBP|Avg: £227 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 27, 2026
Retailer 4£76 GBP
Retailer 2£122 GBP
Retailer 7£152 GBP
Retailer 5£194 GBP
Retailer 3£236 GBP
Retailer 6£261 GBP
MOH London£493 GBP

3 data points across 7 retailers

7 retailers£76 GBP to £261 GBP

A
Cheapest Retailer
-
£76 GBP
HK$800 HKD
B+
Retailer 2
-
£122 GBP
View
Retailer 3
-
£152 GBP
$204 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£194 GBP
View
Price last confirmed 7 days ago
Retailer 5
-
£236 GBP
$317 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
£261 GBP
$350 USD
View
Most Expensive
B
MOH London
LG847661780 · Oct 26
£493 GBP
View
Price last confirmed 7 days ago
6 more retailers have this diamond
Prices start from £76 GBPSave up to £184 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
0.31ct Heart
£76 GBP