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Radiant|Lab Grown|IGI

0.91ct I SI1 Radiant Lab Grown Diamond

ID • I/SI1 • IGI LG506195999

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

Certificate IGI LG506195999

Diamond specifications and retailer prices

From $754 CAD
$540 USD
As of October 30, 2026
Save $2,752 CAD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,699 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.91ct lab-grown radiant diamond

This 0.91ct lab-grown radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG506195999 or 506195999. Listed at 10 retailers as of October 28, 2026, with a 365% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.91
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle29.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506195999
Dimensions6.61 × 4.59 × 3.22 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.61 mm4.59 mm0.91 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506195999
Side View
Table 65.5%Crown 43.9°Girdle: MediumPavilion 29.6°Culet: NoneDepth 70.2%

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: $4,699 CAD|Low: $754 CAD|High: $5,356 CAD|Avg: $2,296 CAD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2$754 CAD
Retailer 6$1,076 CAD
Retailer 10$1,169 CAD
Retailer 11$1,203 CAD
Retailer 7$1,247 CAD
Retailer 12$1,495 CAD
Retailer 3$1,929 CAD
Retailer 9$2,017 CAD
Retailer 5$2,966 CAD
Retailer 8$3,506 CAD
MOH London$4,699 CAD
Retailer 4$5,356 CAD

14 data points across 12 retailers

10 retailers$754 CAD to $3,506 CAD

A
Cheapest Retailer
-
$754 CAD
$540 USD
B+
Retailer 2
-
$1,076 CAD
$770 USD
View
B
Retailer 3
-
$1,169 CAD
$837 USD
View
B
Retailer 4
-
$1,203 CAD
$861 USD
View
Final sale: no returns
Retailer 5
-
$1,247 CAD
$893 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
$1,247 CAD
$893 USD
View
B
Retailer 7
-
$2,017 CAD
$1,444 USD
View
B
Retailer 8
-
$2,966 CAD
$2,123 USD
View
B
Retailer 9
-
$3,506 CAD
$2,510 USD
View
Most Expensive
MOH London
LG506195999 · Oct 29
$4,699 CAD
£2,649 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $754 CADSave up to $2,752 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
0.91ct Radiant
$754 CAD