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Heart|Lab Grown|IGI

1.51ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG700570324

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG700570324

Diamond specifications and retailer prices

From $261 SGD
As of November 6, 2026
Save $1,328 SGD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,589 SGD at Brilliant Earth · As of November 6, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700570324 or 700570324. Listed at 15 retailers as of November 6, 2026, with prices from $261 to $1,589, a $1,328 spread on the same certified stone. Brilliant Earth lists it at $1,589. 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

1.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700570324
Dimensions7.24 × 7.66 × 4.65 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.24 mm7.66 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700570324
Side View
Table 58.0%Crown 36.8°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 60.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,589 SGD|Low: $261 SGD|High: $1,589 SGD|Avg: $685 SGD
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
November 6, 2026
Retailer 14$261 SGD
Retailer 11$302 SGD
Retailer 7$305 SGD
Retailer 4$323 SGD
Retailer 6$338 SGD
Retailer 15$436 SGD
Retailer 2$545 SGD
Retailer 8$588 SGD
Retailer 3$633 SGD
Retailer 12$723 SGD
Retailer 13$747 SGD
Retailer 10$846 SGD
Retailer 5$1,039 SGD
Retailer 9$1,508 SGD
Brilliant Earth$1,589 SGD

46 data points across 15 retailers

15 retailers$261 SGD to $1,589 SGD

A
Cheapest Retailer
-
$261 SGD
A
Retailer 2
-
$302 SGD
View
A
Retailer 3
-
$305 SGD
View
Final sale: no returns
A
Retailer 4
-
$323 SGD
View
Retailer 5
-
$338 SGD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$436 SGD
View
A
Retailer 7
-
$545 SGD
View
A
Retailer 8
-
$588 SGD
View
B+
Retailer 9
-
$633 SGD
View
B+
Retailer 10
-
$723 SGD
View
B+
Retailer 11
-
$747 SGD
View
B+
Retailer 12
-
$846 SGD
View
B
Retailer 13
-
$1,039 SGD
View
B
Retailer 14
-
$1,508 SGD
View
Most Expensive
B
Brilliant Earth
13883714A · Nov 6
$1,589 SGD
$1,240 USD
View
14 more retailers have this diamond
Prices start from $261 SGDSave up to $1,328 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
$261 SGD