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Cushion|Lab Grown|IGI

1.76ct I VS1 Cushion Lab Grown Diamond

ID • I/VS1 • IGI LG639458558

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG639458558

Diamond specifications and retailer prices

From $1,780 AUD
$1,250 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $1,780 AUD at Brilliant Earth
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 Brilliant Earth

About this 1.76ct lab-grown cushion diamond

This 1.76ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG639458558 or 639458558. 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. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.76
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639458558
Dimensions8.57 × 6.21 × 4.20 mm
L/W Ratio1.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.57 mm6.21 mm1.76 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639458558
Side View
Table 62.0%Crown 34.7°Girdle: MED-VTKPavilion 38.3°Culet: NoneDepth 67.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $1,780 AUD|Low: $1,780 AUD|High: $2,785 AUD|Avg: $2,163 AUD
Brilliant Earth
Retailer 2
February 2, 2026
Brilliant Earth$1,780 AUD
Retailer 2$2,785 AUD

7 data points across 2 retailers

1 retailer

B
Brilliant Earth
13779289A · Oct 29
$1,780 AUD
$1,250 USD
View

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B
1.76ct Cushion
$1,780 AUD