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Radiant|Lab Grown|IGI

1.59ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG739595146

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG739595146

Diamond specifications and retailer prices

From $233 SGD
$182 USD
As of October 30, 2026
Save $1,429 SGD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,662 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.59ct lab-grown radiant diamond

This 1.59ct lab-grown radiant 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 LG739595146 or 739595146. Listed at 17 retailers as of October 30, 2026, with prices from $233 to $1,662, a $1,429 spread on the same certified stone. Brilliant Earth lists it at $1,662. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739595146
Dimensions7.95 × 5.86 × 3.95 mm
L/W Ratio1.36
Culet sizePointed
Top View
7.95 mm5.86 mm1.59 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739595146
Side View
Table 65.0%Crown 45.7°Girdle: MediumPavilion 36°Culet: NoneDepth 67.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,662 SGD|Low: $222 SGD|High: $1,713 SGD|Avg: $701 SGD|-3.0%
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
November 1, 2026
Retailer 10$233 SGD
Retailer 14$270 SGD
Retailer 3$288 SGD
Retailer 11$288 SGD
Retailer 6$390 SGD
Retailer 8$487 SGD
Retailer 7$519 SGD
Retailer 5$572 SGD
Retailer 4$624 SGD
Retailer 9$727 SGD
Retailer 12$926 SGD
Retailer 13$1,330 SGD
Retailer 2$1,346 SGD
Brilliant Earth$1,662 SGD

45 data points across 14 retailers

17 retailers$233 SGD to $1,662 SGD

A
Cheapest Retailer
-
$233 SGD
$182 USD
A
Retailer 2
-
$270 SGD
$211 USD
View
Retailer 3
-
$288 SGD
$225 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$288 SGD
$225 USD
View
A
Retailer 5
-
$327 SGD
HK$2,000 HKD
View
B+
Retailer 6
-
$390 SGD
$305 USD
View
A
Retailer 7
-
$487 SGD
€363 EUR
View
A
Retailer 8
-
$519 SGD
£320 GBP
View
A
Retailer 9
-
$572 SGD
$448 USD
View
B+
Retailer 10
-
$624 SGD
$488 USD
View
B+
Retailer 11
-
$678 SGD
$530 USD
View
B+
Retailer 12
-
$727 SGD
$569 USD
View
B+
Retailer 13
-
$926 SGD
$724 USD
View
B+
Retailer 14
-
$944 SGD
View
Retailer 15
-
$1,330 SGD
$1,040 USD
View
Price last confirmed 32 days ago
B
Retailer 16
-
$1,346 SGD
£829 GBP
View
Most Expensive
B
Brilliant Earth
20675146A · Oct 31
$1,662 SGD
$1,300 USD
View
16 more retailers have this diamond
Prices start from $233 SGDSave up to $1,429 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 Radiant
$233 SGD