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Heart|Lab Grown|IGI

1.83ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG840632375

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840632375

Diamond specifications and retailer prices

From $1,118 AUD
$785 USD
As of October 30, 2026
Save $5,061 AUD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,178 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.83ct lab-grown heart diamond

This 1.83ct 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 LG840632375 or 840632375. Listed at 20 retailers as of October 30, 2026, with prices from $1,118 to $6,178, a $5,061 spread on the same certified stone. Brilliant Earth lists it at $6,178. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.83
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632375
Dimensions7.44 × 8.50 × 4.82 mm
L/W Ratio1.14
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
7.44 mm8.50 mm1.83 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632375
Side View
Table 56.0%Crown 37.2°Girdle: MED-THKPavilion 37.8°Culet: NoneDepth 56.7%

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: $6,178 AUD|Low: $1,118 AUD|High: $8,357 AUD|Avg: $3,007 AUD|-26.1%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 7$1,118 AUD
Retailer 4$1,216 AUD
Retailer 17$1,295 AUD
Retailer 9$1,347 AUD
Retailer 11$1,439 AUD
Retailer 14$1,469 AUD
Retailer 18$1,545 AUD
Retailer 6$1,649 AUD
Retailer 2$1,987 AUD
Retailer 8$2,094 AUD
Retailer 3$2,265 AUD
Retailer 16$2,382 AUD
Retailer 13$2,807 AUD
Retailer 19$3,644 AUD
Retailer 20$4,258 AUD
Retailer 5$4,479 AUD
Retailer 15$4,883 AUD
Retailer 12$5,134 AUD
Retailer 10$5,502 AUD
Brilliant Earth$6,178 AUD

19 data points across 20 retailers

20 retailers$1,118 AUD to $6,178 AUD

A
Cheapest Retailer
-
$1,118 AUD
$785 USD
A
Retailer 2
-
$1,216 AUD
$854 USD
View
A
Retailer 3
-
$1,295 AUD
$910 USD
View
Retailer 4
-
$1,347 AUD
$946 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$1,439 AUD
$1,011 USD
View
Final sale: no returns
A
Retailer 6
-
$1,469 AUD
£813 GBP
View
A
Retailer 7
-
$1,545 AUD
$1,085 USD
View
A
Retailer 8
-
$1,649 AUD
$1,158 USD
View
A
Retailer 9
-
$1,987 AUD
£1,099 GBP
View
B+
Retailer 10
-
$2,094 AUD
$1,471 USD
View
B+
Retailer 11
-
$2,265 AUD
$1,591 USD
View
B+
Retailer 12
-
$2,382 AUD
ZAR 27,035 ZAR
View
B+
Retailer 13
-
$2,807 AUD
$1,972 USD
View
B+
Retailer 14
-
$3,644 AUD
$2,560 USD
View
B
Retailer 15
-
$4,258 AUD
$2,991 USD
View
B
Retailer 16
-
$4,479 AUD
$3,147 USD
View
B
Retailer 17
-
$4,883 AUD
£2,701 GBP
View
B
Retailer 18
-
$5,134 AUD
SGD 4,873 SGD
View
B
Retailer 19
-
$5,502 AUD
$3,865 USD
View
Most Expensive
B
Brilliant Earth
21826816A · Oct 31
$6,178 AUD
$4,340 USD
View
19 more retailers have this diamond
Prices start from $1,118 AUDSave up to $5,061 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
1.83ct Heart
$1,118 AUD