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Heart|Lab Grown|IGI

1.54ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG598311827

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG598311827

Diamond specifications and retailer prices

From $304 SGD
As of November 4, 2026
Save $1,324 SGD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,628 SGD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG598311827 or 598311827. Listed at 16 retailers as of November 4, 2026, with prices from $304 to $1,628, a $1,324 spread on the same certified stone. Brilliant Earth lists it at $1,628. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598311827
Dimensions8.00 × 6.85 × 4.75 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
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
8.00 mm6.85 mm1.54 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598311827
Side View
Table 60.0%Crown 36.8°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 59.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $1,628 SGD|Low: $292 SGD|High: $3,902 SGD|Avg: $987 SGD|-3.1%
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
November 6, 2026
Retailer 15$304 SGD
Retailer 17$351 SGD
Retailer 10$352 SGD
Retailer 14$377 SGD
Retailer 4$442 SGD
Retailer 3$532 SGD
Retailer 6$669 SGD
Retailer 5$700 SGD
Retailer 11$705 SGD
Retailer 8$824 SGD
Retailer 9$1,057 SGD
Retailer 2$1,211 SGD
Retailer 16$1,215 SGD
Retailer 7$1,274 SGD
Retailer 13$1,373 SGD
Retailer 12$1,510 SGD
Brilliant Earth$1,628 SGD

45 data points across 17 retailers

16 retailers$304 SGD to $1,628 SGD

A
Cheapest Retailer
-
$304 SGD
A
Retailer 2
-
$351 SGD
View
Final sale: no returns
A
Retailer 3
-
$352 SGD
View
A
Retailer 4
-
$377 SGD
View
A
Retailer 5
-
$442 SGD
View
B+
Retailer 6
-
$532 SGD
View
B+
Retailer 7
-
$669 SGD
View
B+
Retailer 8
-
$700 SGD
View
B+
Retailer 9
-
$705 SGD
View
B+
Retailer 10
-
$824 SGD
View
B
Retailer 11
-
$1,211 SGD
View
B
Retailer 12
-
$1,215 SGD
View
B
Retailer 13
-
$1,274 SGD
View
B
Retailer 14
-
$1,373 SGD
View
B
Retailer 15
-
$1,510 SGD
View
Most Expensive
B
Brilliant Earth
8062596A · Nov 6
$1,628 SGD
$1,270 USD
View
15 more retailers have this diamond
Prices start from $304 SGDSave up to $1,324 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
1.54ct Heart
$304 SGD