Heart|Lab Grown|IGI

1.05ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG812620843

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG812620843

Diamond specifications and retailer prices

From $249 USD
As of October 30, 2026
Save $1,181 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,430 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG812620843 or 812620843. Listed at 19 retailers as of October 30, 2026, with prices from $249 to $1,430, a $1,181 spread on the same certified stone. Brilliant Earth lists it at $1,430. 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 angle36.4°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620843
Dimensions6.54 × 6.95 × 3.99 mm
L/W Ratio1.06
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
6.54 mm6.95 mm1.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620843
Side View
Table 57.0%Crown 36.4°Girdle: STK-VTKPavilion 37.5°Culet: NoneDepth 57.4%

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: $1,430 USD|Low: $187 USD|High: $1,640 USD|Avg: $747 USD|-12.8%
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
October 30, 2026
Retailer 4$249 USD
Retailer 12$390 USD
Retailer 6$466 USD
Retailer 8$475 USD
Retailer 2$514 USD
Retailer 13$598 USD
Retailer 11$607 USD
Retailer 9$675 USD
Retailer 10$892 USD
Retailer 3$942 USD
Retailer 7$1,114 USD
Retailer 5$1,267 USD
Brilliant Earth$1,430 USD

39 data points across 13 retailers

19 retailers$249 USD to $1,430 USD

Retailer 1
-
$223 USD
Price last confirmed 22 days ago
A
Retailer 2
-
$249 USD
View
Final sale: no returns
Retailer 3
-
$266 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$277 USD
View
Price last confirmed 27 days ago
Retailer 5
-
$277 USD
View
Price last confirmed 18 days ago
Retailer 6
-
$289 USD
View
Price last confirmed 35 days ago
A
Retailer 7
-
$390 USD
View
A
Retailer 8
-
$466 USD
€444 EUR
View
A
Retailer 9
-
$475 USD
ZAR 7,674 ZAR
View
A
Retailer 10
-
$514 USD
£405 GBP
View
B+
Retailer 11
-
$598 USD
View
B+
Retailer 12
-
$607 USD
View
B+
Retailer 13
-
$675 USD
A$1,038 AUD
View
Retailer 14
-
$889 USD
View
Price last confirmed 26 days ago
B+
Retailer 15
-
$892 USD
View
B+
Retailer 16
-
$942 USD
View
B
Retailer 17
-
$1,114 USD
£877 GBP
View
B
Retailer 18
-
$1,267 USD
View
Most Expensive
B
Brilliant Earth
20896351A · Oct 30
$1,430 USD
View
18 more retailers have this diamond
Prices start from $249 USDSave up to $1,181 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
$249 USD