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Radiant|Lab Grown|GCAL

1.63ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • GCAL 341246020

Shape and cutting style on the report: Radiant brilliant

Certificate GCAL 341246020

Diamond specifications and retailer prices

From HK$2,252 HKD
$287 USD
As of October 30, 2026
Save HK$9,023 HKD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$11,274 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.63ct lab-grown radiant diamond

This 1.63ct 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 GCAL 341246020. Listed at 12 retailers as of October 30, 2026, with prices from HK$2,252 to HK$11,274, a HK$9,023 spread on the same certified stone. Blue Nile lists it at HK$11,274. 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

1.63
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle34.9°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 341246020
Dimensions8.19 × 5.74 × 3.93 mm
L/W Ratio1.43
Culet sizeNone
Top View
8.19 mm5.74 mm1.63 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 341246020
Side View
Table 65.0%Crown 45.8°Girdle: THK-VTKPavilion 34.9°Culet: NoneDepth 68.5%

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 30
Current: HK$11,274 HKD|Low: HK$1,797 HKD|High: HK$11,329 HKD|Avg: HK$5,421 HKD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 7HK$2,252 HKD
Retailer 10HK$2,526 HKD
Retailer 9HK$2,613 HKD
Retailer 8HK$2,793 HKD
Retailer 4HK$3,113 HKD
Retailer 12HK$3,962 HKD
Retailer 2HK$4,313 HKD
Retailer 11HK$4,754 HKD
Retailer 6HK$7,163 HKD
Retailer 3HK$9,364 HKD
Retailer 5HK$11,249 HKD
Blue NileHK$11,274 HKD

42 data points across 12 retailers

12 retailersHK$2,252 HKD to HK$11,274 HKD

A
Cheapest Retailer
-
HK$2,252 HKD
$287 USD
A
Retailer 2
-
HK$2,526 HKD
$322 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,613 HKD
$333 USD
View
A
Retailer 4
-
HK$2,793 HKD
$356 USD
View
A
Retailer 5
-
HK$3,113 HKD
View
A
Retailer 6
-
HK$3,962 HKD
$505 USD
View
A
Retailer 7
-
HK$4,313 HKD
£433 GBP
View
B+
Retailer 8
-
HK$4,754 HKD
$606 USD
View
B
Retailer 9
-
HK$7,163 HKD
$913 USD
View
B
Retailer 10
-
HK$9,364 HKD
$1,194 USD
View
B
Retailer 11
-
HK$11,249 HKD
£1,129 GBP
View
Most Expensive
B
Blue Nile
25491067 · Oct 31
HK$11,274 HKD
$1,437 USD
View
11 more retailers have this diamond
Prices start from HK$2,252 HKDSave up to HK$9,023 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
1.63ct Radiant
HK$2,252 HKD