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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846663660

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846663660

Diamond specifications and retailer prices

From $893 SGD
$698 USD
As of November 1, 2026
Save $4,018 SGD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,911 SGD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct 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 LG846663660 or 846663660. Listed at 10 retailers as of November 1, 2026, with prices from $893 to $4,911, a $4,018 spread on the same certified stone. Brilliant Earth lists it at $4,911. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663660
Dimensions7.73 × 6.86 × 4.78 mm
L/W Ratio1.13
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
7.73 mm6.86 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663660
Side View
Table 57.0%Crown 36.1°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 61.8%

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: Nov 1
Current: $4,911 SGD|Low: $893 SGD|High: $6,190 SGD|Avg: $2,646 SGD|-20.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3$893 SGD
Retailer 2$1,044 SGD
Retailer 6$1,151 SGD
Retailer 8$1,492 SGD
Retailer 10$1,512 SGD
Retailer 5$2,452 SGD
Retailer 7$3,667 SGD
Retailer 4$3,893 SGD
Retailer 9$4,078 SGD
Brilliant Earth$4,911 SGD

8 data points across 10 retailers

10 retailers$893 SGD to $4,911 SGD

A
Cheapest Retailer
-
$893 SGD
$698 USD
A
Retailer 2
-
$1,044 SGD
£643 GBP
View
A
Retailer 3
-
$1,151 SGD
$900 USD
View
B+
Retailer 4
-
$1,492 SGD
$1,167 USD
View
B+
Retailer 5
-
$1,512 SGD
$1,182 USD
View
B+
Retailer 6
-
$2,452 SGD
$1,917 USD
View
B
Retailer 7
-
$3,667 SGD
$2,867 USD
View
B
Retailer 8
-
$3,893 SGD
£2,397 GBP
View
B
Retailer 9
-
$4,078 SGD
$3,189 USD
View
Most Expensive
B
Brilliant Earth
22319408A · Nov 2
$4,911 SGD
$3,840 USD
View
9 more retailers have this diamond
Prices start from $893 SGDSave up to $4,018 SGD

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
1.51ct Heart
$893 SGD