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Radiant|Lab Grown|IGI

1.56ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG537215993

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

Certificate IGI LG537215993

Diamond specifications and retailer prices

From $255 CAD
$182 USD
As of October 30, 2026
Save $1,313 CAD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,568 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown radiant diamond

This 1.56ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG537215993 or 537215993. Listed at 18 retailers as of October 29, 2026, with prices from $255 to $1,568, a $1,313 spread on the same certified stone. Brilliant Earth lists it at $1,568. 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

1.56
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG537215993
Dimensions8.39 × 5.66 × 3.80 mm
L/W Ratio1.48
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
8.39 mm5.66 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG537215993
Side View
Table 61.0%Crown 32.2°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 67.1%

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: $1,568 CAD|Low: $239 CAD|High: $1,568 CAD|Avg: $739 CAD
Brilliant Earth
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
October 30, 2026
Retailer 8$255 CAD
Retailer 6$309 CAD
Retailer 13$316 CAD
Retailer 2$326 CAD
Retailer 10$407 CAD
Retailer 3$517 CAD
Retailer 9$558 CAD
Retailer 11$572 CAD
Retailer 7$781 CAD
Retailer 4$794 CAD
Retailer 5$994 CAD
Retailer 12$1,094 CAD
Retailer 15$1,211 CAD
Retailer 14$1,452 CAD
Brilliant Earth$1,568 CAD

40 data points across 15 retailers

18 retailers$255 CAD to $1,568 CAD

A
Cheapest Retailer
-
$255 CAD
$182 USD
A
Retailer 2
-
$290 CAD
$207 USD
View
A
Retailer 3
-
$309 CAD
$221 USD
View
A
Retailer 4
-
$316 CAD
$226 USD
View
A
Retailer 5
-
$326 CAD
$233 USD
View
Final sale: no returns
A
Retailer 6
-
$407 CAD
£229 GBP
View
A
Retailer 7
-
$517 CAD
€352 EUR
View
B+
Retailer 8
-
$558 CAD
$399 USD
View
A
Retailer 9
-
$572 CAD
£322 GBP
View
A
Retailer 10
-
$661 CAD
$472 USD
View
B+
Retailer 11
-
$781 CAD
$558 USD
View
B+
Retailer 12
-
$794 CAD
$567 USD
View
B+
Retailer 13
-
$994 CAD
$710 USD
View
B
Retailer 14
-
$1,025 CAD
£577 GBP
View
B+
Retailer 15
-
$1,094 CAD
$782 USD
View
Retailer 16
-
$1,211 CAD
$865 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
$1,452 CAD
£817 GBP
View
Most Expensive
B
Brilliant Earth
14996947A · Oct 29
$1,568 CAD
$1,120 USD
View
17 more retailers have this diamond
Prices start from $255 CADSave up to $1,313 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
1.56ct Radiant
$255 CAD