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Radiant|Lab Grown|IGI

1.00ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG490176326

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

Certificate IGI LG490176326

Diamond specifications and retailer prices

From $187 CAD
As of November 6, 2026
Save $1,613 CAD (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,800 CAD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490176326 or 490176326. Listed at 20 retailers as of November 6, 2026, with prices from $187 to $1,800, a $1,613 spread on the same certified stone. Do Amore Diamonds lists it at $1,800. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490176326
Dimensions7.05 × 4.97 × 3.39 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.05 mm4.97 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490176326
Side View
Table 63.0%Crown 40.1°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 68.2%

Caratlytics Score

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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: Nov 6
Current: $1,800 CAD|Low: $180 CAD|High: $1,800 CAD|Avg: $580 CAD
Do Amore Diamonds
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
Retailer 15
November 6, 2026
Retailer 9$187 CAD
Retailer 7$210 CAD
Retailer 14$217 CAD
Retailer 15$232 CAD
Retailer 3$333 CAD
Retailer 5$363 CAD
Retailer 10$437 CAD
Retailer 2$452 CAD
Retailer 13$485 CAD
Retailer 12$556 CAD
Retailer 6$774 CAD
Retailer 4$788 CAD
Retailer 8$823 CAD
Retailer 11$1,193 CAD
Do Amore Diamonds$1,800 CAD

43 data points across 15 retailers

20 retailers$187 CAD to $1,800 CAD

A
Cheapest Retailer
-
$187 CAD
A
Retailer 2
-
$210 CAD
View
Final sale: no returns
A
Retailer 3
-
$217 CAD
View
A
Retailer 4
-
$232 CAD
View
A
Retailer 5
-
$308 CAD
View
B+
Retailer 6
-
$363 CAD
View
A
Retailer 7
-
$395 CAD
View
A
Retailer 8
-
$437 CAD
View
A
Retailer 9
-
$452 CAD
View
A
Retailer 10
-
$485 CAD
View
B+
Retailer 11
-
$556 CAD
View
B+
Retailer 12
-
$578 CAD
View
B
Retailer 13
-
$743 CAD
View
B+
Retailer 14
-
$774 CAD
View
B+
Retailer 15
-
$788 CAD
View
B+
Retailer 16
-
$823 CAD
View
B
Retailer 17
-
$973 CAD
View
B
Retailer 18
-
$1,068 CAD
View
B
Retailer 19
-
$1,193 CAD
View
Most Expensive
B
Do Amore Diamonds
27-4E1C3A675 · Nov 6
$1,800 CAD
$1,280 USD
View
19 more retailers have this diamond
Prices start from $187 CADSave up to $1,613 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
$187 CAD