CaratHunter
Plans
Cushion|Lab Grown|IGI

1.30ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG512221709

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG512221709

Diamond specifications and retailer prices

From $2,311 CAD
$1,643 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: $2,311 CAD at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 1.3ct lab-grown cushion diamond

This 1.3ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512221709 or 512221709. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.30
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.2°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512221709
Dimensions6.43 × 5.86 mm
L/W Ratio1.10
Girdle conditionFaceted
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
6.43 mm5.86 mm1.30 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG512221709
Side View
Table 64.5%Crown 34.2°Girdle: THK-ETKPavilion 34.5°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
C
Average
Compare with similar diamonds
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,311 CAD|Low: $2,201 CAD|High: $3,805 CAD|Avg: $2,808 CAD|-39.3%
September 23, 2026
B2C Jewels$2,311 CAD

4 data points across 1 retailer

1 retailer

C
B2C Jewels
20035036 · Nov 6
$2,311 CAD
$1,643 USD
View

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.

C
1.30ct Cushion
$2,311 CAD