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 $277 USD
As of October 27, 2026
Save $1,162 USD (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,444 USD 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 27, 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

How it works →
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 27
Current: $603 USD|Low: $288 USD|High: $1,777 USD|Avg: $842 USD|-23.2%
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 29, 2026
Retailer 2$309 USD
Retailer 9$343 USD
Retailer 10$345 USD
Retailer 4$362 USD
Retailer 7$500 USD
Retailer 6$590 USD
Retailer 1$603 USD
Retailer 12$607 USD
Retailer 5$835 USD
Retailer 11$1,054 USD
Retailer 8$1,377 USD
Retailer 3$1,439 USD

38 data points across 12 retailers

23 retailers$277 USD to $1,439 USD

A
Cheapest Retailer
-
$277 USD
Retailer 2
-
$277 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$309 USD
View
Final sale: no returns
A
Retailer 4
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$343 USD
View
Retailer 5
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$343 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$345 USD
View
Retailer 7
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$362 USD
View
Price last confirmed 29 days ago
Retailer 8
-
$362 USD
View
Price last confirmed 21 days ago
Retailer 9
-
$420 USD
View
Price last confirmed 31 days ago
Retailer 10
-
$443 USD
View
Price last confirmed 32 days ago
Retailer 11
-
$449 USD
View
Price last confirmed 26 days ago
Retailer 12
-
$449 USD
View
Price last confirmed 17 days ago
A
Retailer 13
-
$500 USD
View
B+
Retailer 14
-
$590 USD
ZAR 9,527 ZAR
View
B+
Retailer 15
-
$603 USD
£474 GBP
View
B+
Retailer 16
-
$607 USD
View
B+
Retailer 17
-
$835 USD
A$1,285 AUD
View
B+
Retailer 18
-
$1,054 USD
View
Retailer 19
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$1,103 USD
View
Price last confirmed 7 days ago
B
Retailer 20
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$1,377 USD
£1,084 GBP
View
B
Retailer 21
-
$1,439 USD
View
Retailer 22
-
$1,444 USD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
2945aaba-f71c-41d4-8de9-5c651ceb8a0d · Sep 30
$1,444 USD
View
Price last confirmed 29 days ago
22 more retailers have this diamond
Prices start from $277 USDSave up to $1,162 USD

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
$277 USD