Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG644487427

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

Certificate IGI LG644487427

Diamond specifications and retailer prices

From $220 CAD
$157 USD
As of October 25, 2026
Save $1,622 CAD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,841 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG644487427 or 644487427. Listed at 15 retailers as of October 25, 2026, with prices from $220 to $1,841, a $1,622 spread on the same certified stone. MOH London lists it at $1,841. 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

1.05
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644487427
Dimensions7.40 × 4.89 × 3.34 mm
L/W Ratio1.51
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.40 mm4.89 mm1.05 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644487427
Side View
Table 65.0%Crown 45.1°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 68.3%

Caratlytics Score

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

Price History

Last verified: Oct 25
Current: $1,841 CAD|Low: $206 CAD|High: $1,854 CAD|Avg: $557 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
Retailer 13
Retailer 14
October 30, 2026
Retailer 3$206 CAD
Retailer 4$217 CAD
Retailer 8$220 CAD
Retailer 12$286 CAD
Retailer 2$366 CAD
Retailer 7$417 CAD
Retailer 13$418 CAD
Retailer 6$423 CAD
Retailer 11$431 CAD
Retailer 10$651 CAD
Retailer 5$673 CAD
Retailer 9$745 CAD
Retailer 14$826 CAD
MOH London$1,841 CAD

36 data points across 14 retailers

15 retailers$220 CAD to $1,841 CAD

Retailer 1
-
$206 CAD
$147 USD
Price last confirmed 32 days ago
Retailer 2
-
$217 CAD
$155 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
$220 CAD
$157 USD
View
Retailer 4
-
$286 CAD
£161 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
$366 CAD
£206 GBP
View
A
Retailer 6
-
$417 CAD
£235 GBP
View
B+
Retailer 7
-
$418 CAD
$299 USD
View
B+
Retailer 8
-
$423 CAD
$302 USD
View
B+
Retailer 9
-
$431 CAD
€293 EUR
View
Retailer 10
-
$651 CAD
$465 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$673 CAD
$481 USD
View
B
Retailer 12
-
$745 CAD
$532 USD
View
B+
Retailer 13
-
$803 CAD
£452 GBP
View
B
Retailer 14
-
$826 CAD
$590 USD
View
Most Expensive
B
MOH London
LG644487427 · Oct 29
$1,841 CAD
£1,036 GBP
View
14 more retailers have this diamond
Prices start from $220 CADSave up to $1,622 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
1.05ct Radiant
$220 CAD