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Cushion|Lab Grown|IGI

0.71ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG508145129

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG508145129

Diamond specifications and retailer prices

From $387 CAD
$277 USD
As of October 30, 2026
Save $1,268 CAD (77%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,655 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.71ct lab-grown cushion diamond

This 0.71ct lab-grown cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG508145129 or 508145129. Listed at 4 retailers as of October 29, 2026, with prices from $387 to $1,655, a $1,268 spread on the same certified stone. MOH London lists it at $1,655. 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

0.71
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508145129
Dimensions5.34 × 5.18 × 3.53 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
5.34 mm5.18 mm0.71 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508145129
Side View
Table 59.5%Crown 35.7°Girdle: STK-VTKPavilion 41.1°Culet: NoneDepth 68.1%

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: $1,655 CAD|Low: $352 CAD|High: $1,666 CAD|Avg: $746 CAD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3$387 CAD
Retailer 2$399 CAD
Retailer 4$528 CAD
Retailer 7$657 CAD
Retailer 5$852 CAD
Retailer 6$852 CAD
MOH London$1,655 CAD

34 data points across 7 retailers

4 retailers$387 CAD to $1,655 CAD

A
Cheapest Retailer
-
$387 CAD
$277 USD
A
Retailer 2
-
$399 CAD
£225 GBP
View
B+
Retailer 3
-
$528 CAD
$378 USD
View
Most Expensive
B
MOH London
LG508145129 · Oct 29
$1,655 CAD
£933 GBP
View
3 more retailers have this diamond
Prices start from $387 CADSave up to $1,268 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
0.71ct Cushion
$387 CAD