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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 $402 CAD
$287 USD
As of October 27, 2026
Save $1,610 CAD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,011 CAD at Blue Nile · As of October 29, 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 27, 2026, with prices from $402 to $2,011, a $1,610 spread on the same certified stone. Blue Nile lists it at $2,011. 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
Color
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 27
Current: $2,011 CAD|Low: $321 CAD|High: $2,021 CAD|Avg: $965 CAD
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 29, 2026
Retailer 7$402 CAD
Retailer 10$451 CAD
Retailer 9$466 CAD
Retailer 8$498 CAD
Retailer 4$555 CAD
Retailer 12$707 CAD
Retailer 2$776 CAD
Retailer 11$848 CAD
Retailer 6$1,278 CAD
Retailer 3$1,671 CAD
Retailer 5$2,007 CAD
Blue Nile$2,011 CAD

41 data points across 12 retailers

12 retailers$402 CAD to $2,011 CAD

A
Cheapest Retailer
-
$402 CAD
$287 USD
A
Retailer 2
-
$451 CAD
$322 USD
View
Final sale: no returns
A
Retailer 3
-
$466 CAD
$333 USD
View
A
Retailer 4
-
$498 CAD
$356 USD
View
A
Retailer 5
-
$555 CAD
HK$3,100 HKD
View
A
Retailer 6
-
$707 CAD
$505 USD
View
A
Retailer 7
-
$776 CAD
£436 GBP
View
B+
Retailer 8
-
$848 CAD
$606 USD
View
B
Retailer 9
-
$1,278 CAD
$913 USD
View
B
Retailer 10
-
$1,671 CAD
$1,194 USD
View
B
Retailer 11
-
$2,007 CAD
£1,129 GBP
View
Most Expensive
B
Blue Nile
25491067 · Oct 29
$2,011 CAD
$1,437 USD
View
11 more retailers have this diamond
Prices start from $402 CADSave up to $1,610 CAD

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
$402 CAD