Heart|Lab Grown|IGI

1.05ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG830648509

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG830648509

Diamond specifications and retailer prices

From $388 USD
As of October 30, 2026
Save $768 USD (66%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,156 USD at MOH London · As of October 25, 2026
View at MOH London

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 LG830648509 or 830648509. Listed at 6 retailers as of October 25, 2026, with prices from $388 to $1,156, a $768 spread on the same certified stone. MOH London lists it at $1,156. 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
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830648509
Dimensions6.68 × 6.94 × 3.97 mm
L/W Ratio1.04
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
6.68 mm6.94 mm1.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830648509
Side View
Table 53.0%Crown 34.3°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 57.2%

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 30
Current: $1,156 USD|Low: $388 USD|High: $1,168 USD|Avg: $698 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 3$388 USD
Retailer 2$543 USD
Retailer 5$597 USD
Retailer 4$611 USD
Retailer 6$978 USD
MOH London$1,156 USD

32 data points across 6 retailers

6 retailers$388 USD to $1,156 USD

A
Cheapest Retailer
-
$388 USD
A
Retailer 2
-
$543 USD
£428 GBP
View
B+
Retailer 3
-
$597 USD
View
B+
Retailer 4
-
$611 USD
View
B
Retailer 5
-
$978 USD
View
Most Expensive
B
MOH London
LG830648509 · Oct 25
$1,156 USD
£910 GBP
View
5 more retailers have this diamond
Prices start from $388 USDSave up to $768 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
1.05ct Heart
$388 USD