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Cushion|Lab Grown|IGI

1.51ct E SI2 Cushion Lab Grown Diamond

EX • E/SI2 • IGI LG497154958

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG497154958

Diamond specifications and retailer prices

From $1,670 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $1,670 USD 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 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG497154958 or 497154958. Listed at a single retailer as of October 29, 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
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497154958
Dimensions6.39 × 6.36 mm
L/W Ratio1.00
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
6.39 mm6.36 mm1.51 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG497154958
Side View
Table 58.0%Crown 34.5°Girdle: MED-VTKPavilion 32.4°Culet: NoneDepth 66.7%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 29
Current: $1,670 USD|Low: $1,590 USD|High: $2,747 USD|Avg: $2,028 USD|-39.2%
September 23, 2026
B2C Jewels$1,670 USD

4 data points across 1 retailer

1 retailer

C
B2C Jewels
20034377 · Oct 29
$1,670 USD
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C
1.51ct Cushion
$1,670 USD