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Heart|Lab Grown|IGI

1.03ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG812621329

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG812621329

Diamond specifications and retailer prices

From £147 GBP
$197 USD
As of October 30, 2026
Save £690 GBP (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £866 GBP at Brilliant Earth · As of October 22, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG812621329 or 812621329. Listed at 20 retailers as of October 30, 2026, with a 469% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812621329
Dimensions6.85 × 6.30 × 4.06 mm
L/W Ratio1.09
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
6.85 mm6.30 mm1.03 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812621329
Side View
Table 56.0%Crown 33.9°Girdle: MED-THKPavilion 38.6°Culet: NoneDepth 59.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £866 GBP|Low: £147 GBP|High: £870 GBP|Avg: £425 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 15£147 GBP
Retailer 7£177 GBP
Retailer 10£231 GBP
Retailer 13£282 GBP
Retailer 8£284 GBP
Retailer 2£295 GBP
Retailer 12£311 GBP
Retailer 14£342 GBP
Retailer 4£400 GBP
Retailer 3£400 GBP
Retailer 6£568 GBP
Retailer 5£568 GBP
Retailer 9£772 GBP
Retailer 11£837 GBP
Brilliant Earth£866 GBP

39 data points across 15 retailers

20 retailers£147 GBP to £837 GBP

Retailer 1
-
£142 GBP
$190 USD
Price last confirmed 22 days ago
A
Retailer 2
-
£147 GBP
$197 USD
View
Final sale: no returns
Retailer 3
-
£166 GBP
$222 USD
View
Price last confirmed 31 days ago
Retailer 4
-
£175 GBP
$234 USD
View
Price last confirmed 35 days ago
Retailer 5
-
£176 GBP
$236 USD
View
Price last confirmed 27 days ago
Retailer 6
-
£176 GBP
$236 USD
View
Price last confirmed 18 days ago
A
Retailer 7
-
£231 GBP
$310 USD
View
A
Retailer 8
-
£282 GBP
ZAR 6,099 ZAR
View
A
Retailer 9
-
£284 GBP
€363 EUR
View
A
Retailer 10
-
£295 GBP
View
B+
Retailer 11
-
£311 GBP
$417 USD
View
B+
Retailer 12
-
£342 GBP
$458 USD
View
B+
Retailer 13
-
£400 GBP
$536 USD
View
B+
Retailer 14
-
£400 GBP
A$825 AUD
View
Retailer 15
-
£566 GBP
$758 USD
View
Price last confirmed 26 days ago
B
Retailer 16
-
£568 GBP
$761 USD
View
B+
Retailer 17
-
£568 GBP
$761 USD
View
B
Retailer 18
-
£772 GBP
View
B
Retailer 19
-
£837 GBP
$1,121 USD
View
Most Expensive
Brilliant Earth
20681195A · Oct 22
£866 GBP
$1,160 USD
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from £147 GBPSave up to £690 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
£147 GBP