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Radiant|Lab Grown|IGI

1.00ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG570331905

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

Certificate IGI LG570331905

Diamond specifications and retailer prices

From $155 CAD
$111 USD
As of October 30, 2026
Save $1,454 CAD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,609 CAD at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG570331905 or 570331905. Listed at 19 retailers as of October 26, 2026, with prices from $155 to $1,609, a $1,454 spread on the same certified stone. MOH London lists it at $1,609. 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

1.00
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle27.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570331905
Dimensions8.10 × 4.63 × 3.06 mm
L/W Ratio1.75
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
8.10 mm4.63 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570331905
Side View
Table 61.5%Crown 35.5°Girdle: MediumPavilion 27.4°Culet: NoneDepth 66.1%

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 30
Current: $1,609 CAD|Low: $124 CAD|High: $1,627 CAD|Avg: $469 CAD|+0.1%
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
November 1, 2026
Retailer 10$155 CAD
Retailer 5$175 CAD
Retailer 3$180 CAD
Retailer 4$205 CAD
Retailer 12$205 CAD
Retailer 8$356 CAD
Retailer 7$366 CAD
Retailer 13$381 CAD
Retailer 2$387 CAD
Retailer 6$541 CAD
Retailer 14$619 CAD
Retailer 9$690 CAD
Retailer 11$754 CAD
MOH London$1,609 CAD

44 data points across 14 retailers

19 retailers$155 CAD to $1,609 CAD

A
Cheapest Retailer
-
$155 CAD
$111 USD
A
Retailer 2
-
$175 CAD
$125 USD
View
Final sale: no returns
A
Retailer 3
-
$180 CAD
$129 USD
View
A
Retailer 4
-
$205 CAD
$147 USD
View
Retailer 5
-
$205 CAD
$147 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$232 CAD
HK$1,300 HKD
View
A
Retailer 7
-
$356 CAD
€243 EUR
View
A
Retailer 8
-
$366 CAD
£206 GBP
View
A
Retailer 9
-
$380 CAD
$272 USD
View
B+
Retailer 10
-
$381 CAD
$273 USD
View
A
Retailer 11
-
$387 CAD
£218 GBP
View
B+
Retailer 12
-
$541 CAD
$387 USD
View
B+
Retailer 13
-
$542 CAD
SGD 524 SGD
View
B+
Retailer 14
-
$619 CAD
$443 USD
View
B+
Retailer 15
-
$653 CAD
£368 GBP
View
B+
Retailer 16
-
$690 CAD
$494 USD
View
B
Retailer 17
-
$719 CAD
£405 GBP
View
B
Retailer 18
-
$754 CAD
$540 USD
View
Most Expensive
B
MOH London
LG570331905 · Oct 26
$1,609 CAD
£907 GBP
View
18 more retailers have this diamond
Prices start from $155 CADSave up to $1,454 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
1.00ct Radiant
$155 CAD