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Heart|Lab Grown|IGI

1.06ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG847618772

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG847618772

Diamond specifications and retailer prices

From £128 GBP
As of November 6, 2026
Save £343 GBP (73%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £471 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.06ct lab-grown heart diamond

This 1.06ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG847618772 or 847618772. Listed at 9 retailers as of November 6, 2026, with prices from £128 to £471, a £343 spread on the same certified stone. Brilliant Earth lists it at £471. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.06
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle29.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847618772
Dimensions7.25 × 6.18 × 4.04 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.25 mm6.18 mm1.06 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG847618772
Side View
Table 65.0%Crown 29.3°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 55.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £471 GBP|Low: £128 GBP|High: £702 GBP|Avg: £281 GBP|-33.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4£128 GBP
Retailer 9£162 GBP
Retailer 2£182 GBP
Retailer 3£244 GBP
Retailer 6£259 GBP
Retailer 5£269 GBP
Retailer 7£370 GBP
Retailer 8£391 GBP
Brilliant Earth£471 GBP

9 data points across 9 retailers

9 retailers£128 GBP to £471 GBP

A
Cheapest Retailer
-
£128 GBP
Final sale: no returns
A
Retailer 2
-
£162 GBP
View
A
Retailer 3
-
£182 GBP
View
B+
Retailer 4
-
£244 GBP
View
B+
Retailer 5
-
£259 GBP
View
B+
Retailer 6
-
£269 GBP
View
B
Retailer 7
-
£370 GBP
View
B
Retailer 8
-
£391 GBP
View
Most Expensive
B
Brilliant Earth
22307833A · Nov 6
£471 GBP
$630 USD
View
8 more retailers have this diamond
Prices start from £128 GBPSave up to £343 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
1.06ct Heart
£128 GBP