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Radiant|Lab Grown|IGI

3.03ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG685590258

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

Certificate IGI LG685590258

Diamond specifications and retailer prices

From $453 CAD
As of November 6, 2026
Save $2,410 CAD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,862 CAD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.03ct lab-grown radiant diamond

This 3.03ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685590258 or 685590258. Listed at 16 retailers as of November 1, 2026, with prices from $453 to $2,862, a $2,410 spread on the same certified stone. Rare Carat lists it at $2,862. 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

3.03
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685590258
Dimensions10.36 × 7.04 × 4.81 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.36 mm7.04 mm3.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685590258
Side View
Table 64.0%Crown 45.5°Girdle: MediumPavilion 35.7°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: Nov 6
Current: $2,862 CAD|Low: $453 CAD|High: $7,131 CAD|Avg: $1,887 CAD|-30.4%
Rare Carat
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
Retailer 16
Retailer 17
November 7, 2026
Retailer 7$453 CAD
Retailer 14$526 CAD
Retailer 4$563 CAD
Retailer 6$630 CAD
Retailer 11$684 CAD
Retailer 2$781 CAD
Retailer 17$911 CAD
Retailer 10$916 CAD
Retailer 12$993 CAD
Retailer 16$1,010 CAD
Retailer 3$1,370 CAD
Retailer 15$1,649 CAD
Retailer 5$1,807 CAD
Retailer 13$2,246 CAD
Rare Carat$2,862 CAD
Retailer 8$5,376 CAD
Retailer 9$7,131 CAD

12 data points across 17 retailers

16 retailers$453 CAD to $2,862 CAD

A
Cheapest Retailer
-
$453 CAD
A
Retailer 2
-
$526 CAD
View
A
Retailer 3
-
$563 CAD
View
A
Retailer 4
-
$630 CAD
View
A
Retailer 5
-
$684 CAD
View
A
Retailer 6
-
$781 CAD
View
B+
Retailer 7
-
$911 CAD
View
A
Retailer 8
-
$916 CAD
View
A
Retailer 9
-
$993 CAD
View
A
Retailer 10
-
$1,010 CAD
View
A
Retailer 11
-
$1,370 CAD
View
B+
Retailer 12
-
$1,649 CAD
View
B+
Retailer 13
-
$1,807 CAD
View
B+
Retailer 14
-
$2,246 CAD
View
B+
Retailer 15
-
$2,294 CAD
View
Most Expensive
B
Rare Carat
KI2585902KF685 · Nov 1
$2,862 CAD
$2,035 USD
View
15 more retailers have this diamond
Prices start from $453 CADSave up to $2,410 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
3.03ct Radiant
$453 CAD