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Heart|Lab Grown|IGI

1.03ct E IF Heart Lab Grown Diamond

VG • E/IF • IGI LG836618807

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836618807

Diamond specifications and retailer prices

From £169 GBP
$226 USD
As of October 30, 2026
Save £936 GBP (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,105 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.03ct lab-grown heart diamond

This 1.03ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG836618807 or 836618807. Listed at 17 retailers as of October 30, 2026, with prices from £169 to £1,105, a £936 spread on the same certified stone. Brilliant Earth lists it at £1,105. 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

1.03
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836618807
Dimensions6.25 × 7.01 × 4.03 mm
L/W Ratio1.12
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.25 mm7.01 mm1.03 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836618807
Side View
Table 59.0%Crown 36.8°Girdle: MED-STKPavilion 38°Culet: NoneDepth 57.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £1,105 GBP|Low: £169 GBP|High: £1,105 GBP|Avg: £472 GBP
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 17
October 31, 2026
Retailer 7£169 GBP
Retailer 15£188 GBP
Retailer 17£196 GBP
Retailer 12£209 GBP
Retailer 11£221 GBP
Retailer 16£295 GBP
Retailer 4£359 GBP
Retailer 10£390 GBP
Retailer 13£439 GBP
Retailer 5£440 GBP
Retailer 8£453 GBP
Retailer 6£509 GBP
Retailer 14£671 GBP
Retailer 2£674 GBP
Retailer 9£711 GBP
Retailer 3£952 GBP
Brilliant Earth£1,105 GBP

6 data points across 17 retailers

17 retailers£169 GBP to £1,105 GBP

A
Cheapest Retailer
-
£169 GBP
$226 USD
A
Retailer 2
-
£188 GBP
$252 USD
View
Final sale: no returns
A
Retailer 3
-
£196 GBP
$262 USD
View
A
Retailer 4
-
£209 GBP
$280 USD
View
A
Retailer 5
-
£221 GBP
View
A
Retailer 6
-
£295 GBP
$395 USD
View
A
Retailer 7
-
£359 GBP
ZAR 7,766 ZAR
View
A
Retailer 8
-
£390 GBP
View
B+
Retailer 9
-
£439 GBP
$588 USD
View
B+
Retailer 10
-
£440 GBP
$589 USD
View
B+
Retailer 11
-
£453 GBP
$606 USD
View
B+
Retailer 12
-
£509 GBP
A$1,050 AUD
View
B
Retailer 13
-
£671 GBP
$899 USD
View
Retailer 14
-
£674 GBP
$903 USD
View
B
Retailer 15
-
£711 GBP
$952 USD
View
B
Retailer 16
-
£952 GBP
$1,275 USD
View
Most Expensive
B
Brilliant Earth
22318851A · Oct 30
£1,105 GBP
$1,480 USD
View
16 more retailers have this diamond
Prices start from £169 GBPSave up to £936 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
1.03ct Heart
£169 GBP