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Cushion|Lab Grown|IGI

3.13ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG12887805

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12887805

Diamond specifications and retailer prices

From $2,179 NZD
$1,208 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: $2,179 NZD 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 3.13ct lab-grown cushion diamond

This 3.13ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG12887805 or 12887805. 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.13
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12887805
Dimensions8.78 × 7.42 mm
L/W Ratio1.18
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Depostition (CVD) growth process.
Top View
8.78 mm7.42 mm3.13 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12887805
Side View
Table 58.0%Crown 37.5°Girdle: STK-UNDPavilion 40.6°Culet: NoneDepth 80.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $2,179 NZD|Low: $2,089 NZD|High: $2,684 NZD|Avg: $2,317 NZD|-18.8%
September 23, 2026
B2C Jewels$2,179 NZD

3 data points across 1 retailer

1 retailer

B
B2C Jewels
25940803 · Nov 6
$2,179 NZD
$1,208 USD
View

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B
3.13ct Cushion
$2,179 NZD