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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 $354 AUD
$249 USD
As of October 30, 2026
Save $1,681 AUD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,036 AUD at Brilliant Earth · As of October 31, 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 $354 to $2,036, a $1,681 spread on the same certified stone. Brilliant Earth lists it at $2,036. 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
Colour
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: $2,036 AUD|Low: $266 AUD|High: $2,335 AUD|Avg: $1,020 AUD|-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
Retailer 14
November 1, 2026
Retailer 4$354 AUD
Retailer 6$417 AUD
Retailer 13$555 AUD
Retailer 7$658 AUD
Retailer 10$676 AUD
Retailer 2$733 AUD
Retailer 14$852 AUD
Retailer 12$864 AUD
Retailer 11$961 AUD
Retailer 8$1,019 AUD
Retailer 3$1,340 AUD
Retailer 9$1,586 AUD
Retailer 5$1,804 AUD
Brilliant Earth$2,036 AUD

40 data points across 14 retailers

19 retailers$354 AUD to $2,036 AUD

Retailer 1
-
$317 AUD
$223 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$354 AUD
$249 USD
View
Final sale: no returns
Retailer 3
-
$379 AUD
$266 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$394 AUD
$277 USD
View
Price last confirmed 29 days ago
Retailer 5
-
$394 AUD
$277 USD
View
Price last confirmed 20 days ago
Retailer 6
-
$411 AUD
$289 USD
View
Price last confirmed 37 days ago
A
Retailer 7
-
$555 AUD
$390 USD
View
A
Retailer 8
-
$658 AUD
€440 EUR
View
A
Retailer 9
-
$676 AUD
ZAR 7,674 ZAR
View
A
Retailer 10
-
$733 AUD
£406 GBP
View
B+
Retailer 11
-
$852 AUD
$598 USD
View
B+
Retailer 12
-
$864 AUD
$607 USD
View
B+
Retailer 13
-
$961 AUD
View
B+
Retailer 14
-
$1,019 AUD
$716 USD
View
Retailer 15
-
$1,266 AUD
$889 USD
View
Price last confirmed 27 days ago
B+
Retailer 16
-
$1,340 AUD
$942 USD
View
B
Retailer 17
-
$1,586 AUD
£877 GBP
View
B
Retailer 18
-
$1,804 AUD
$1,267 USD
View
Most Expensive
B
Brilliant Earth
20896351A · Oct 31
$2,036 AUD
$1,430 USD
View
18 more retailers have this diamond
Prices start from $354 AUDSave up to $1,681 AUD

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
$354 AUD