Heart|Lab Grown|IGI

1.03ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG818646099

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818646099

Diamond specifications and retailer prices

From €248 EUR
$277 USD
As of October 30, 2026
Save €1,040 EUR (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,293 EUR at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

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 top-tier cut grade and certified by IGI LG818646099 or 818646099. Listed at 23 retailers as of October 30, 2026, with a 419% 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818646099
Dimensions6.89 × 6.26 × 4.09 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.89 mm6.26 mm1.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818646099
Side View
Table 62.0%Crown 31.7°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 59.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €541 EUR|Low: €258 EUR|High: €1,590 EUR|Avg: €758 EUR|-23.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 2€277 EUR
Retailer 10€307 EUR
Retailer 4€324 EUR
Retailer 8€448 EUR
Retailer 5€507 EUR
Retailer 7€528 EUR
Retailer 1€541 EUR
Retailer 12€543 EUR
Retailer 6€748 EUR
Retailer 11€943 EUR
Retailer 9€1,232 EUR
Retailer 3€1,288 EUR

40 data points across 12 retailers

23 retailers€248 EUR to €1,288 EUR

A
Cheapest Retailer
-
€248 EUR
$277 USD
Retailer 2
-
€248 EUR
$277 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
€277 EUR
$309 USD
View
Final sale: no returns
A
Retailer 4
-
€307 EUR
$343 USD
View
Retailer 5
-
€307 EUR
$343 USD
View
Price last confirmed 14 days ago
Retailer 6
-
€324 EUR
$362 USD
View
Price last confirmed 31 days ago
Retailer 7
-
€324 EUR
$362 USD
View
Price last confirmed 23 days ago
Retailer 8
-
€376 EUR
$420 USD
View
Price last confirmed 33 days ago
Retailer 9
-
€397 EUR
$443 USD
View
Price last confirmed 34 days ago
Retailer 10
-
€402 EUR
$449 USD
View
Price last confirmed 28 days ago
Retailer 11
-
€402 EUR
$449 USD
View
Price last confirmed 19 days ago
A
Retailer 12
-
€448 EUR
$500 USD
View
B+
Retailer 13
-
€507 EUR
$566 USD
View
B+
Retailer 14
-
€528 EUR
ZAR 9,527 ZAR
View
B+
Retailer 15
-
€541 EUR
£476 GBP
View
B+
Retailer 16
-
€543 EUR
$607 USD
View
B+
Retailer 17
-
€748 EUR
A$1,285 AUD
View
B+
Retailer 18
-
€943 EUR
$1,054 USD
View
Retailer 19
-
€987 EUR
$1,103 USD
View
Price last confirmed 9 days ago
B
Retailer 20
-
€1,232 EUR
£1,084 GBP
View
B
Retailer 21
-
€1,288 EUR
$1,439 USD
View
Retailer 22
-
€1,293 EUR
$1,444 USD
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
2945aaba-f71c-41d4-8de9-5c651ceb8a0d · Sep 30
€1,293 EUR
$1,444 USD
View
Price last confirmed 31 days ago
22 more retailers have this diamond
Prices start from €248 EURSave up to €1,040 EUR

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
€248 EUR