CaratHunter
Plans
Heart|Lab Grown|IGI

1.89ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG830620146

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG830620146

Diamond specifications and retailer prices

From $1,197 AUD
$841 USD
As of October 30, 2026
Save $5,337 AUD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,534 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.89ct lab-grown heart diamond

This 1.89ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830620146 or 830620146. Listed at 15 retailers as of October 30, 2026, with prices from $1,197 to $6,534, a $5,337 spread on the same certified stone. Brilliant Earth lists it at $6,534. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620146
Dimensions7.86 × 8.81 × 4.76 mm
L/W Ratio1.12
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
7.86 mm8.81 mm1.89 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620146
Side View
Table 62.0%Crown 35.8°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 54.0%

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: $6,534 AUD|Low: $1,197 AUD|High: $8,641 AUD|Avg: $3,160 AUD|-24.4%
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
Retailer 15
October 31, 2026
Retailer 11$1,197 AUD
Retailer 3$1,389 AUD
Retailer 5$1,486 AUD
Retailer 12$1,575 AUD
Retailer 4$1,637 AUD
Retailer 9$1,740 AUD
Retailer 2$2,134 AUD
Retailer 10$2,236 AUD
Retailer 15$2,419 AUD
Retailer 8$3,193 AUD
Retailer 7$4,574 AUD
Retailer 14$4,813 AUD
Retailer 6$5,290 AUD
Retailer 13$5,683 AUD
Brilliant Earth$6,534 AUD

3 data points across 15 retailers

15 retailers$1,197 AUD to $6,534 AUD

A
Cheapest Retailer
-
$1,197 AUD
$841 USD
A
Retailer 2
-
$1,389 AUD
$976 USD
View
A
Retailer 3
-
$1,486 AUD
$1,044 USD
View
Final sale: no returns
A
Retailer 4
-
$1,575 AUD
£871 GBP
View
A
Retailer 5
-
$1,637 AUD
$1,150 USD
View
A
Retailer 6
-
$1,740 AUD
$1,222 USD
View
B+
Retailer 7
-
$2,134 AUD
£1,180 GBP
View
B+
Retailer 8
-
$2,236 AUD
$1,571 USD
View
B+
Retailer 9
-
$2,419 AUD
$1,699 USD
View
B+
Retailer 10
-
$3,193 AUD
$2,243 USD
View
B
Retailer 11
-
$4,574 AUD
$3,213 USD
View
B
Retailer 12
-
$4,813 AUD
$3,381 USD
View
B
Retailer 13
-
$5,290 AUD
SGD 5,022 SGD
View
B
Retailer 14
-
$5,683 AUD
$3,992 USD
View
Most Expensive
B
Brilliant Earth
22348973A · Oct 30
$6,534 AUD
$4,590 USD
View
14 more retailers have this diamond
Prices start from $1,197 AUDSave up to $5,337 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
1.89ct Heart
$1,197 AUD