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Heart|Lab Grown|IGI

1.09ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818663190

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818663190

Diamond specifications and retailer prices

From $503 AUD
As of November 5, 2026
Save $1,947 AUD (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,497 AUD at NZ Jewellers · As of October 5, 2026
View at NZ Jewellers

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818663190 or 818663190. Listed at 17 retailers as of November 4, 2026, with a 387% 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

1.09
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663190
Dimensions6.35 × 7.16 × 4.09 mm
L/W Ratio1.13
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
6.35 mm7.16 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663190
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 57.1%

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: Nov 5
Current: $503 AUD|Low: $503 AUD|High: $2,894 AUD|Avg: $1,516 AUD|-28.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 1$503 AUD
Retailer 4$780 AUD
Retailer 9$862 AUD
Retailer 11$909 AUD
Retailer 2$972 AUD
Retailer 5$985 AUD
Retailer 8$1,110 AUD
Retailer 3$1,471 AUD
Retailer 10$1,594 AUD
Retailer 7$1,859 AUD
Retailer 6$2,229 AUD
Retailer 12$2,450 AUD

36 data points across 12 retailers

17 retailers$503 AUD to $2,450 AUD

A
Cheapest Retailer
-
$503 AUD
Final sale: no returns
Retailer 2
-
$627 AUD
View
Price last confirmed 28 days ago
Retailer 3
-
$704 AUD
View
Price last confirmed 37 days ago
Retailer 4
-
$770 AUD
View
Price last confirmed 41 days ago
Retailer 5
-
$777 AUD
View
Price last confirmed 33 days ago
Retailer 6
-
$777 AUD
View
Price last confirmed 24 days ago
A
Retailer 7
-
$862 AUD
View
B+
Retailer 8
-
$909 AUD
View
B+
Retailer 9
-
$972 AUD
View
B+
Retailer 10
-
$985 AUD
View
B+
Retailer 11
-
$1,110 AUD
View
B+
Retailer 12
-
$1,471 AUD
View
B+
Retailer 13
-
$1,594 AUD
View
B+
Retailer 14
-
$1,859 AUD
View
B
Retailer 15
-
$2,229 AUD
View
B
Retailer 16
-
$2,450 AUD
View
Most Expensive
NZ Jewellers
59d82e18-1654-4883-b84e-e8722c4a5b41 · Oct 5
$2,497 AUD
$1,752 USD
View
Price last confirmed 31 days ago
16 more retailers have this diamond
Prices start from $503 AUDSave up to $1,947 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
1.09ct Heart
$503 AUD