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Heart|Lab Grown|IGI

1.63ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG840632399

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840632399

Diamond specifications and retailer prices

From $702 USD
As of October 30, 2026
Save $3,238 USD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,940 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.63ct lab-grown heart diamond

This 1.63ct 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 LG840632399 or 840632399. Listed at 20 retailers as of October 30, 2026, with prices from $702 to $3,940, a $3,238 spread on the same certified stone. Brilliant Earth lists it at $3,940. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.63
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632399
Dimensions7.36 × 8.42 × 4.51 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
7.36 mm8.42 mm1.63 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632399
Side View
Table 56.0%Crown 34.6°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 53.6%

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: $3,940 USD|Low: $702 USD|High: $5,220 USD|Avg: $1,935 USD|-24.5%
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
October 30, 2026
Retailer 6$702 USD
Retailer 3$764 USD
Retailer 17$814 USD
Retailer 9$846 USD
Retailer 11$901 USD
Retailer 2$923 USD
Retailer 18$990 USD
Retailer 5$1,060 USD
Retailer 20$1,293 USD
Retailer 13$1,305 USD
Retailer 16$1,324 USD
Retailer 15$1,497 USD
Retailer 8$2,006 USD
Retailer 19$2,290 USD
Retailer 7$2,688 USD
Retailer 4$2,808 USD
Retailer 14$3,216 USD
Retailer 12$3,228 USD
Retailer 10$3,442 USD
Brilliant Earth$3,940 USD

23 data points across 20 retailers

20 retailers$702 USD to $3,940 USD

A
Cheapest Retailer
-
$702 USD
A
Retailer 2
-
$764 USD
View
A
Retailer 3
-
$814 USD
View
Retailer 4
-
$846 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$901 USD
View
Final sale: no returns
A
Retailer 6
-
$923 USD
£727 GBP
View
A
Retailer 7
-
$990 USD
View
A
Retailer 8
-
$1,060 USD
View
B+
Retailer 9
-
$1,293 USD
View
A
Retailer 10
-
$1,305 USD
£1,028 GBP
View
B+
Retailer 11
-
$1,324 USD
View
B+
Retailer 12
-
$1,497 USD
ZAR 24,185 ZAR
View
B+
Retailer 13
-
$2,006 USD
View
B+
Retailer 14
-
$2,290 USD
View
B+
Retailer 15
-
$2,688 USD
View
B
Retailer 16
-
$2,808 USD
View
B
Retailer 17
-
$3,216 USD
£2,532 GBP
View
B
Retailer 18
-
$3,228 USD
SGD 4,362 SGD
View
B
Retailer 19
-
$3,442 USD
View
Most Expensive
B
Brilliant Earth
21738407A · Oct 30
$3,940 USD
View
19 more retailers have this diamond
Prices start from $702 USDSave up to $3,238 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
1.63ct Heart
$702 USD