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Heart|Lab Grown|IGI

1.51ct G VS1 Heart Lab Grown Diamond

VG • G/VS1 • IGI LG795634816

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG795634816

Diamond specifications and retailer prices

From £290 GBP
As of November 4, 2026
Save £569 GBP (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £859 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG795634816 or 795634816. Listed at 9 retailers as of November 4, 2026, with prices from £290 to £859, a £569 spread on the same certified stone. MOH London lists it at £859. 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

1.51
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG795634816
Dimensions7.70 × 7.52 × 4.36 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.70 mm7.52 mm1.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG795634816
Side View
Table 66.0%Crown 36.7°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 58.0%

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: £859 GBP|Low: £290 GBP|High: £872 GBP|Avg: £499 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 5£290 GBP
Retailer 3£357 GBP
Retailer 2£401 GBP
Retailer 6£402 GBP
Retailer 4£680 GBP
MOH London£859 GBP

43 data points across 6 retailers

9 retailers£290 GBP to £859 GBP

B+
Cheapest Retailer
-
£290 GBP
A
Retailer 2
-
£357 GBP
View
B+
Retailer 3
-
£361 GBP
View
B+
Retailer 4
-
£401 GBP
View
B+
Retailer 5
-
£402 GBP
View
Retailer 6
-
£680 GBP
View
Price last confirmed 15 days ago
B
Retailer 7
-
£691 GBP
View
B
Retailer 8
-
£730 GBP
View
Most Expensive
B
MOH London
LG795634816 · Nov 5
£859 GBP
View
8 more retailers have this diamond
Prices start from £290 GBPSave up to £569 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
1.51ct Heart
£290 GBP