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Cushion|Lab Grown|IGI

1.05ct E SI2 Cushion Lab Grown Diamond

ID • E/SI2 • IGI LG12747512

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12747512

Diamond specifications and retailer prices

From $889 CAD
As of October 30, 2026
Save $287 CAD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,176 CAD at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12747512 or 12747512. Listed at 2 retailers as of October 30, 2026, with prices from $889 to $1,176, a $287 spread on the same certified stone. The Diamond Guys lists it at $1,176. 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

1.05
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12747512
Dimensions6.07 × 5.70 × 3.80 mm
L/W Ratio1.06
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by High Pressure High Tempertature (HPHT) growth process.
Top View
6.07 mm5.70 mm1.05 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG12747512
Side View
Table 62.5%Crown 35.5°Girdle: MED-UNDPavilion 36.4°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $889 CAD|Low: $456 CAD|High: $1,176 CAD|Avg: $685 CAD|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
The Diamond Guys
June 15, 2026
Retailer 3$456 CAD
Retailer 4$469 CAD
Retailer 2$589 CAD
Retailer 1$889 CAD
The Diamond Guys$1,176 CAD

19 data points across 5 retailers

2 retailers$889 CAD to $1,176 CAD

B+
Cheapest Retailer
-
$889 CAD
Most Expensive
B
The Diamond Guys
1779252807 · Oct 30
$1,176 CAD
$840 USD
View
1 more retailer has this diamond
Prices start from $889 CADSave up to $287 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.

B+
1.05ct Cushion
$889 CAD