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Heart|Lab Grown|IGI

1.01ct I SI2 Heart Lab Grown Diamond

VG • I/SI2 • IGI LG647429820

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG647429820

Diamond specifications and retailer prices

From £874 GBP
As of November 4, 2026
Save £857 GBP (50%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,732 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.01ct lab-grown heart diamond

This 1.01ct lab-grown heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG647429820 or 647429820. Listed at 7 retailers as of November 4, 2026, with prices from £874 to £1,732, a £857 spread on the same certified stone. MOH London lists it at £1,732. 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

1.01
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.8°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647429820
Dimensions5.99 × 5.33 × 3.60 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Top View
5.99 mm5.33 mm1.01 ctI / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI LG647429820
Side View
Table 62.0%Crown 38.8°Girdle: MED-THKPavilion 33°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,732 GBP|Low: £802 GBP|High: £1,757 GBP|Avg: £1,157 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4£874 GBP
Retailer 5£908 GBP
Retailer 10£928 GBP
Retailer 2£932 GBP
Retailer 6£1,015 GBP
Retailer 8£1,048 GBP
Retailer 9£1,127 GBP
Retailer 3£1,316 GBP
Retailer 7£1,569 GBP
MOH London£1,732 GBP

27 data points across 10 retailers

7 retailers£874 GBP to £1,732 GBP

B+
Cheapest Retailer
-
£874 GBP
Final sale: no returns
B+
Retailer 2
-
£908 GBP
View
B+
Retailer 3
-
£932 GBP
View
B+
Retailer 4
-
£1,048 GBP
View
Retailer 5
-
£1,316 GBP
View
Price last confirmed 10 days ago
Retailer 6
-
£1,569 GBP
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
6BC1F5CDA · Nov 4
£1,732 GBP
View
6 more retailers have this diamond
Prices start from £874 GBPSave up to £857 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.

B+
1.01ct Heart
£874 GBP