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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 $1,393 NZD
$785 USD
As of October 30, 2026
Save $6,308 NZD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,700 NZD 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 $1,393 to $7,700, a $6,308 spread on the same certified stone. Brilliant Earth lists it at $7,700. 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: $7,700 NZD|Low: $1,393 NZD|High: $10,415 NZD|Avg: $3,748 NZD|-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$1,393 NZD
Retailer 4$1,515 NZD
Retailer 17$1,615 NZD
Retailer 9$1,678 NZD
Retailer 11$1,794 NZD
Retailer 13$1,826 NZD
Retailer 18$1,925 NZD
Retailer 6$2,055 NZD
Retailer 14$2,477 NZD
Retailer 8$2,610 NZD
Retailer 3$2,823 NZD
Retailer 16$2,969 NZD
Retailer 15$3,499 NZD
Retailer 19$4,542 NZD
Retailer 20$5,307 NZD
Retailer 5$5,583 NZD
Retailer 2$6,055 NZD
Retailer 12$6,398 NZD
Retailer 10$6,858 NZD
Brilliant Earth$7,700 NZD

19 data points across 20 retailers

20 retailers$1,393 NZD to $7,700 NZD

A
Cheapest Retailer
-
$1,393 NZD
$785 USD
A
Retailer 2
-
$1,515 NZD
$854 USD
View
A
Retailer 3
-
$1,615 NZD
$910 USD
View
Retailer 4
-
$1,678 NZD
$946 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$1,794 NZD
$1,011 USD
View
Final sale: no returns
A
Retailer 6
-
$1,826 NZD
£810 GBP
View
A
Retailer 7
-
$1,925 NZD
$1,085 USD
View
A
Retailer 8
-
$2,055 NZD
$1,158 USD
View
A
Retailer 9
-
$2,477 NZD
£1,099 GBP
View
B+
Retailer 10
-
$2,610 NZD
$1,471 USD
View
B+
Retailer 11
-
$2,823 NZD
$1,591 USD
View
B+
Retailer 12
-
$2,969 NZD
ZAR 27,035 ZAR
View
B+
Retailer 13
-
$3,499 NZD
$1,972 USD
View
B+
Retailer 14
-
$4,542 NZD
$2,560 USD
View
B
Retailer 15
-
$5,307 NZD
$2,991 USD
View
B
Retailer 16
-
$5,583 NZD
$3,147 USD
View
B
Retailer 17
-
$6,055 NZD
£2,687 GBP
View
B
Retailer 18
-
$6,398 NZD
SGD 4,873 SGD
View
B
Retailer 19
-
$6,858 NZD
$3,865 USD
View
Most Expensive
B
Brilliant Earth
21826816A · Oct 31
$7,700 NZD
$4,340 USD
View
19 more retailers have this diamond
Prices start from $1,393 NZDSave up to $6,308 NZD

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
$1,393 NZD