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Heart|Lab Grown|IGI

1.03ct E FL Heart Lab Grown Diamond

GD • E/FL • IGI LG818657603

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818657603

Diamond specifications and retailer prices

From $470 AUD
$330 USD
As of October 30, 2026
Save $1,664 AUD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,178 AUD 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 FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818657603 or 818657603. Listed at 18 retailers as of October 30, 2026, with a 354% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.03
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657603
Dimensions6.33 × 6.94 × 4.04 mm
L/W Ratio1.10
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
6.33 mm6.94 mm1.03 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657603
Side View
Table 57.0%Crown 35°Girdle: STK-THKPavilion 39°Culet: NoneDepth 58.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $925 AUD|Low: $434 AUD|High: $2,679 AUD|Avg: $1,365 AUD|-22.4%
Retailer 1
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 31, 2026
Retailer 3$470 AUD
Retailer 5$678 AUD
Retailer 10$737 AUD
Retailer 6$740 AUD
Retailer 8$858 AUD
Retailer 13$874 AUD
Retailer 11$897 AUD
Retailer 1$925 AUD
Retailer 2$1,169 AUD
Retailer 7$1,330 AUD
Retailer 4$1,747 AUD
Retailer 9$2,103 AUD
Retailer 12$2,134 AUD

35 data points across 13 retailers

18 retailers$470 AUD to $2,134 AUD

A
Cheapest Retailer
-
$470 AUD
$330 USD
Final sale: no returns
Retailer 2
-
$547 AUD
$384 USD
View
Price last confirmed 22 days ago
Retailer 3
-
$612 AUD
$430 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$669 AUD
$470 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$678 AUD
$476 USD
View
Price last confirmed 28 days ago
Retailer 6
-
$678 AUD
$476 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$737 AUD
$518 USD
View
B+
Retailer 8
-
$740 AUD
$520 USD
View
B+
Retailer 9
-
$858 AUD
€574 EUR
View
B+
Retailer 10
-
$874 AUD
$614 USD
View
B+
Retailer 11
-
$897 AUD
ZAR 10,180 ZAR
View
B+
Retailer 12
-
$925 AUD
£512 GBP
View
B
Retailer 13
-
$1,169 AUD
$821 USD
View
B
Retailer 14
-
$1,330 AUD
$934 USD
View
B
Retailer 15
-
$1,747 AUD
$1,227 USD
View
B
Retailer 16
-
$2,103 AUD
£1,163 GBP
View
B
Retailer 17
-
$2,134 AUD
$1,499 USD
View
Most Expensive
NZ Jewellers
3ab7322c-7c8b-4483-905f-a635ff7218f4 · Sep 30
$2,178 AUD
$1,530 USD
View
Price last confirmed 30 days ago
17 more retailers have this diamond
Prices start from $470 AUDSave up to $1,664 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
1.03ct Heart
$470 AUD