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Radiant|Lab Grown|IGI

1.53ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG496117921

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

Certificate IGI LG496117921

Diamond specifications and retailer prices

From $198 SGD
$155 USD
As of October 27, 2026
Save $1,099 SGD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,298 SGD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.53ct lab-grown radiant diamond

This 1.53ct 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 standard cut grade and certified by IGI LG496117921 or 496117921. Listed at 15 retailers as of October 27, 2026, with prices from $198 to $1,298, a $1,099 spread on the same certified stone. Rare Carat lists it at $1,298. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.53
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle29°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496117921
Dimensions7.64 × 5.62 × 3.86 mm
L/W Ratio1.36
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
7.64 mm5.62 mm1.53 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496117921
Side View
Table 62.5%Crown 40°Girdle: MED-STKPavilion 29°Culet: NoneDepth 68.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: $1,298 SGD|Low: $190 SGD|High: $1,470 SGD|Avg: $617 SGD|-11.7%
Rare Carat
Retailer 2
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
October 28, 2026
Retailer 15$198 SGD
Retailer 13$230 SGD
Retailer 14$245 SGD
Retailer 17$245 SGD
Retailer 7$271 SGD
Retailer 10$429 SGD
Retailer 2$444 SGD
Retailer 3$449 SGD
Retailer 6$623 SGD
Retailer 5$679 SGD
Retailer 9$785 SGD
Retailer 16$790 SGD
Retailer 4$805 SGD
Retailer 12$835 SGD
Retailer 8$861 SGD
Retailer 11$1,151 SGD
Rare Carat$1,298 SGD

40 data points across 17 retailers

15 retailers$198 SGD to $1,298 SGD

A
Cheapest Retailer
-
$198 SGD
$155 USD
B+
Retailer 2
-
$230 SGD
$180 USD
View
B+
Retailer 3
-
$245 SGD
$192 USD
View
A
Retailer 4
-
$245 SGD
$192 USD
View
B+
Retailer 5
-
$429 SGD
£264 GBP
View
B+
Retailer 6
-
$444 SGD
£274 GBP
View
B
Retailer 7
-
$449 SGD
$351 USD
View
B+
Retailer 8
-
$623 SGD
$487 USD
View
B+
Retailer 9
-
$679 SGD
$531 USD
View
B
Retailer 10
-
$785 SGD
HK$4,800 HKD
View
B+
Retailer 11
-
$790 SGD
$618 USD
View
B
Retailer 12
-
$835 SGD
$653 USD
View
B
Retailer 13
-
$861 SGD
$673 USD
View
B
Retailer 14
-
$1,151 SGD
£709 GBP
View
Most Expensive
B
Rare Carat
496117921_l_496117921 · Oct 28
$1,298 SGD
$1,015 USD
View
14 more retailers have this diamond
Prices start from $198 SGDSave up to $1,099 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
1.53ct Radiant
$198 SGD