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Heart|Lab Grown|IGI

1.59ct F SI1 Heart Lab Grown Diamond

ID • F/SI1 • IGI LG825687255

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825687255

Diamond specifications and retailer prices

From $301 SGD
As of November 6, 2026
Save $1,147 SGD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,448 SGD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.59ct lab-grown heart diamond

This 1.59ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG825687255 or 825687255. Listed at 14 retailers as of November 6, 2026, with prices from $301 to $1,448, a $1,147 spread on the same certified stone. Brilliant Earth lists it at $1,448. 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

1.59
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825687255
Dimensions8.27 × 6.94 × 4.89 mm
L/W Ratio1.19
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.27 mm6.94 mm1.59 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825687255
Side View
Table 67.0%Crown 30.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 59.1%

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 6
Current: $1,448 SGD|Low: $261 SGD|High: $2,256 SGD|Avg: $770 SGD|-35.8%
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
November 7, 2026
Retailer 13$273 SGD
Retailer 7$301 SGD
Retailer 12$317 SGD
Retailer 5$338 SGD
Retailer 6$425 SGD
Retailer 8$574 SGD
Retailer 2$611 SGD
Retailer 4$669 SGD
Retailer 9$879 SGD
Retailer 3$1,087 SGD
Retailer 10$1,087 SGD
Retailer 11$1,357 SGD
Brilliant Earth$1,448 SGD

42 data points across 13 retailers

14 retailers$301 SGD to $1,448 SGD

Retailer 1
-
$273 SGD
Price last confirmed 15 days ago
A
Retailer 2
-
$301 SGD
View
Final sale: no returns
Retailer 3
-
$317 SGD
View
Price last confirmed 14 days ago
Retailer 4
-
$338 SGD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$377 SGD
View
A
Retailer 6
-
$425 SGD
View
B+
Retailer 7
-
$574 SGD
View
A
Retailer 8
-
$611 SGD
View
Retailer 9
-
$669 SGD
View
Price last confirmed 8 days ago
B
Retailer 10
-
$879 SGD
View
Retailer 11
-
$1,087 SGD
View
Price last confirmed 13 days ago
B
Retailer 12
-
$1,087 SGD
View
Retailer 13
-
$1,357 SGD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
20868368A · Nov 6
$1,448 SGD
$1,130 USD
View
13 more retailers have this diamond
Prices start from $301 SGDSave up to $1,147 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
1.59ct Heart
$301 SGD