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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 HK$1,216 HKD
$155 USD
As of October 27, 2026
Save HK$6,747 HKD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$7,963 HKD 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 HK$1,216 to HK$7,963, a HK$6,747 spread on the same certified stone. Rare Carat lists it at HK$7,963. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: HK$7,963 HKD|Low: HK$1,169 HKD|High: HK$9,022 HKD|Avg: HK$3,784 HKD|-11.7%
Rare Carat
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
October 28, 2026
Retailer 15HK$1,216 HKD
Retailer 13HK$1,412 HKD
Retailer 14HK$1,506 HKD
Retailer 17HK$1,506 HKD
Retailer 7HK$1,663 HKD
Retailer 10HK$2,632 HKD
Retailer 2HK$2,725 HKD
Retailer 3HK$2,754 HKD
Retailer 6HK$3,821 HKD
Retailer 5HK$4,166 HKD
Retailer 9HK$4,820 HKD
Retailer 16HK$4,849 HKD
Retailer 4HK$4,942 HKD
Retailer 12HK$5,123 HKD
Retailer 8HK$5,283 HKD
Retailer 11HK$7,065 HKD
Rare CaratHK$7,963 HKD

39 data points across 17 retailers

15 retailersHK$1,216 HKD to HK$7,963 HKD

A
Cheapest Retailer
-
HK$1,216 HKD
$155 USD
B+
Retailer 2
-
HK$1,412 HKD
$180 USD
View
B+
Retailer 3
-
HK$1,506 HKD
$192 USD
View
A
Retailer 4
-
HK$1,506 HKD
$192 USD
View
B+
Retailer 5
-
HK$2,632 HKD
£264 GBP
View
B+
Retailer 6
-
HK$2,725 HKD
£274 GBP
View
B
Retailer 7
-
HK$2,754 HKD
$351 USD
View
B+
Retailer 8
-
HK$3,821 HKD
$487 USD
View
B+
Retailer 9
-
HK$4,166 HKD
$531 USD
View
B
Retailer 10
-
HK$4,820 HKD
View
B+
Retailer 11
-
HK$4,849 HKD
$618 USD
View
B
Retailer 12
-
HK$5,123 HKD
$653 USD
View
B
Retailer 13
-
HK$5,283 HKD
$673 USD
View
B
Retailer 14
-
HK$7,065 HKD
£709 GBP
View
Most Expensive
B
Rare Carat
496117921_l_496117921 · Oct 28
HK$7,963 HKD
$1,015 USD
View
14 more retailers have this diamond
Prices start from HK$1,216 HKDSave up to HK$6,747 HKD

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
HK$1,216 HKD