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Heart|Lab Grown|IGI

1.10ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG828679596

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG828679596

Diamond specifications and retailer prices

From £130 GBP
As of November 6, 2026
Save £423 GBP (76%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £553 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.1ct lab-grown heart diamond

This 1.1ct 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 LG828679596 or 828679596. Listed at 3 retailers as of November 6, 2026, with prices from £130 to £553, a £423 spread on the same certified stone. Brilliant Earth lists it at £553. 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

1.10
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828679596
Dimensions6.11 × 7.15 × 4.27 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
6.11 mm7.15 mm1.10 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828679596
Side View
Table 59.0%Crown 36.5°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £553 GBP|Low: £130 GBP|High: £725 GBP|Avg: £330 GBP|-23.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3£130 GBP
Retailer 4£255 GBP
Retailer 2£260 GBP
Retailer 5£263 GBP
Brilliant Earth£553 GBP

42 data points across 5 retailers

3 retailers£130 GBP to £553 GBP

A
Cheapest Retailer
-
£130 GBP
Final sale: no returns
B+
Retailer 2
-
£260 GBP
View
Most Expensive
B
Brilliant Earth
21224252A · Nov 6
£553 GBP
$740 USD
View
2 more retailers have this diamond
Prices start from £130 GBPSave up to £423 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
1.10ct Heart
£130 GBP