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Heart|Lab Grown|IGI

1.50ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG831604178

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831604178

Diamond specifications and retailer prices

From $918 SGD
$718 USD
As of November 2, 2026
Save $4,376 SGD (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,295 SGD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.5ct lab-grown heart diamond

This 1.5ct 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 LG831604178 or 831604178. Listed at 21 retailers as of November 2, 2026, with prices from $918 to $5,295, a $4,376 spread on the same certified stone. Brilliant Earth lists it at $5,295. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604178
Dimensions7.20 × 8.04 × 4.55 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
7.20 mm8.04 mm1.50 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604178
Side View
Table 64.0%Crown 33.6°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 56.6%

Caratlytics Score

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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 2
Current: $5,295 SGD|Low: $918 SGD|High: $7,311 SGD|Avg: $2,679 SGD|-14.3%
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
Retailer 21
November 2, 2026
Retailer 15$918 SGD
Retailer 18$999 SGD
Retailer 9$1,028 SGD
Retailer 3$1,064 SGD
Retailer 16$1,203 SGD
Retailer 12$1,244 SGD
Retailer 5$1,292 SGD
Retailer 6$1,370 SGD
Retailer 8$1,458 SGD
Retailer 20$1,545 SGD
Retailer 17$1,707 SGD
Retailer 2$1,956 SGD
Retailer 13$2,279 SGD
Retailer 4$2,993 SGD
Retailer 7$3,450 SGD
Retailer 10$3,585 SGD
Retailer 21$3,639 SGD
Retailer 14$3,670 SGD
Retailer 19$4,181 SGD
Retailer 11$5,062 SGD
Brilliant Earth$5,295 SGD

6 data points across 21 retailers

21 retailers$918 SGD to $5,295 SGD

A
Cheapest Retailer
-
$918 SGD
$718 USD
A
Retailer 2
-
$999 SGD
$781 USD
View
A
Retailer 3
-
$1,028 SGD
$804 USD
View
Final sale: no returns
A
Retailer 4
-
$1,064 SGD
$832 USD
View
A
Retailer 5
-
$1,203 SGD
£741 GBP
View
A
Retailer 6
-
$1,244 SGD
HK$7,600 HKD
View
A
Retailer 7
-
$1,292 SGD
$1,010 USD
View
A
Retailer 8
-
$1,370 SGD
$1,071 USD
View
A
Retailer 9
-
$1,458 SGD
$1,140 USD
View
B+
Retailer 10
-
$1,545 SGD
$1,208 USD
View
B+
Retailer 11
-
$1,707 SGD
£1,051 GBP
View
B
Retailer 12
-
$1,956 SGD
ZAR 24,706 ZAR
View
B+
Retailer 13
-
$2,279 SGD
$1,782 USD
View
B
Retailer 14
-
$2,993 SGD
$2,340 USD
View
B
Retailer 15
-
$3,450 SGD
$2,698 USD
View
B
Retailer 16
-
$3,585 SGD
View
B
Retailer 17
-
$3,639 SGD
$2,845 USD
View
B
Retailer 18
-
$3,670 SGD
$2,869 USD
View
B
Retailer 19
-
$4,181 SGD
£2,574 GBP
View
B
Retailer 20
-
$5,062 SGD
$3,958 USD
View
Most Expensive
B
Brilliant Earth
22337458A · Nov 2
$5,295 SGD
$4,140 USD
View
20 more retailers have this diamond
Prices start from $918 SGDSave up to $4,376 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
1.50ct Heart
$918 SGD