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Heart|Lab Grown|IGI

1.05ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG788621662

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG788621662

Diamond specifications and retailer prices

From £390 GBP
$522 USD
As of October 30, 2026
Save £654 GBP (63%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,043 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 1.05ct lab-grown heart diamond

This 1.05ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788621662 or 788621662. Listed at 4 retailers as of October 30, 2026, with prices from £390 to £1,043, a £654 spread on the same certified stone. With Clarity lists it at £1,043. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788621662
Dimensions6.67 × 7.02 × 4.08 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.67 mm7.02 mm1.05 ctE / IF
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788621662
Side View
Table 63.0%Crown 33.7°Girdle: Slightly ThickPavilion 42.4°Culet: NoneDepth 58.1%

Caratlytics Score

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

Last verified: Oct 30
Current: £457 GBP|Low: £390 GBP|High: £1,287 GBP|Avg: £717 GBP|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
With Clarity
October 29, 2026
Retailer 2£390 GBP
Retailer 1£457 GBP
Retailer 3£490 GBP
Retailer 4£662 GBP
With Clarity£1,043 GBP
Retailer 5£1,287 GBP

10 data points across 6 retailers

4 retailers£390 GBP to £1,043 GBP

A
Cheapest Retailer
-
£390 GBP
$522 USD
B+
Retailer 2
-
£457 GBP
€583 EUR
View
B+
Retailer 3
-
£490 GBP
$657 USD
View
Most Expensive
B
With Clarity
788621662 · Oct 31
£1,043 GBP
$1,398 USD
View
3 more retailers have this diamond
Prices start from £390 GBPSave up to £654 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
1.05ct Heart
£390 GBP