Radiant|Lab Grown|IGI

0.81ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG648465420

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

Certificate IGI LG648465420

Diamond specifications and retailer prices

From $203 CAD
$145 USD
As of October 28, 2026
Save $494 CAD (71%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $697 CAD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.81ct lab-grown radiant diamond

This 0.81ct lab-grown radiant sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648465420 or 648465420. Listed at 10 retailers as of October 28, 2026, with prices from $203 to $697, a $494 spread on the same certified stone. NZ Jewellers lists it at $697. 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

0.81
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.8°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648465420
Dimensions6.43 × 4.60 × 3.10 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.43 mm4.60 mm0.81 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648465420
Side View
Table 67.0%Crown 46.8°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 67.4%

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 28
Current: $697 CAD|Low: $203 CAD|High: $1,050 CAD|Avg: $464 CAD
NZ Jewellers
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
October 29, 2026
Retailer 3$203 CAD
Retailer 2$231 CAD
Retailer 13$251 CAD
Retailer 7$315 CAD
Retailer 10$332 CAD
Retailer 4$332 CAD
Retailer 9$357 CAD
Retailer 14$358 CAD
Retailer 11$416 CAD
Retailer 12$446 CAD
Retailer 8$551 CAD
NZ Jewellers$697 CAD
Retailer 5$863 CAD
Retailer 6$1,050 CAD

2 data points across 14 retailers

10 retailers$203 CAD to $697 CAD

A
Cheapest Retailer
-
$203 CAD
$145 USD
Retailer 2
-
$231 CAD
$165 USD
View
A
Retailer 3
-
$251 CAD
HK$1,400 HKD
View
A
Retailer 4
-
$315 CAD
£177 GBP
View
A
Retailer 5
-
$332 CAD
$237 USD
View
A
Retailer 6
-
$358 CAD
£201 GBP
View
B+
Retailer 7
-
$416 CAD
$297 USD
View
B+
Retailer 8
-
$446 CAD
£251 GBP
View
B+
Retailer 9
-
$551 CAD
$394 USD
View
Most Expensive
B
NZ Jewellers
027abd9c-13e0-4c48-bec2-dfaf55da0ed3 · Oct 28
$697 CAD
$498 USD
View
9 more retailers have this diamond
Prices start from $203 CADSave up to $494 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
0.81ct Radiant
$203 CAD