Cushion|Lab Grown|IGI

1.51ct H SI2 Cushion Lab Grown Diamond

EX • H/SI2

Diamond specifications and retailer prices

From $6,370 CAD
$4,529 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: $6,370 CAD at Helzberg Diamonds
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 Helzberg Diamonds

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI. 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

1.51
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginLab Grown
Grading LabIGI
Dimensions7.69 × 6.13 mm
L/W Ratio1.25
Top View
7.69 mm6.13 mm1.51 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI
Side View
Table 62.0%CrownGirdle: THN-MEDPavilionCuletDepth 68.7%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: $6,370 CAD|Low: $6,370 CAD|High: $6,906 CAD|Avg: $6,669 CAD|-7.8%
November 3, 2026
Helzberg Diamonds$6,370 CAD

6 data points across 1 retailer

1 retailer

C
Helzberg Diamonds
ZXZOJGMLIMHG · Nov 6
$6,370 CAD
$4,529 USD
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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
1.51ct Cushion
$6,370 CAD