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 $841 USD
As of October 30, 2026
Save $3,749 USD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,590 USD 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 14 retailers as of October 30, 2026, with prices from $841 to $4,590, a $3,749 spread on the same certified stone. Brilliant Earth lists it at $4,590. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,590 USD|Low: $841 USD|High: $6,070 USD|Avg: $2,270 USD|-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
October 30, 2026
Retailer 8$841 USD
Retailer 14$976 USD
Retailer 4$1,044 USD
Retailer 9$1,106 USD
Retailer 3$1,150 USD
Retailer 2$1,222 USD
Retailer 10$1,499 USD
Retailer 7$1,571 USD
Retailer 13$1,699 USD
Retailer 6$3,213 USD
Retailer 12$3,381 USD
Retailer 5$3,716 USD
Retailer 11$3,992 USD
Brilliant Earth$4,590 USD

2 data points across 14 retailers

14 retailers$841 USD to $4,590 USD

A
Cheapest Retailer
-
$841 USD
A
Retailer 2
-
$976 USD
View
A
Retailer 3
-
$1,044 USD
View
Final sale: no returns
A
Retailer 4
-
$1,106 USD
£871 GBP
View
A
Retailer 5
-
$1,150 USD
View
A
Retailer 6
-
$1,222 USD
View
B+
Retailer 7
-
$1,499 USD
£1,180 GBP
View
B+
Retailer 8
-
$1,571 USD
View
B+
Retailer 9
-
$1,699 USD
View
B
Retailer 10
-
$3,213 USD
View
B
Retailer 11
-
$3,381 USD
View
B
Retailer 12
-
$3,716 USD
SGD 5,022 SGD
View
B
Retailer 13
-
$3,992 USD
View
Most Expensive
B
Brilliant Earth
22348973A · Oct 30
$4,590 USD
View
13 more retailers have this diamond
Prices start from $841 USDSave up to $3,749 USD

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
$841 USD