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Cushion|Lab Grown|IGI

3.01ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG817687799

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG817687799

Diamond specifications and retailer prices

From $4,031 AUD
$2,770 USD
As of November 6, 2026
3 retailers carry this diamond
Most expensive: $4,031 AUD at Brilliant Earth
View at Brilliant Earth

About this 3.01ct lab-grown cushion diamond

This 3.01ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG817687799 or 817687799. Listed at 3 retailers as of November 6, 2026. 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

3.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817687799
Dimensions10.24 × 7.34 × 4.66 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.24 mm7.34 mm3.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817687799
Side View
Table 66.0%Crown 34.9°Girdle: MED-STKPavilion 34.7°Culet: NoneDepth 63.5%

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: $4,031 AUD|Low: $800 AUD|High: $4,119 AUD|Avg: $1,829 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 5, 2026
Retailer 9$800 AUD
Retailer 3$972 AUD
Retailer 7$1,076 AUD
Retailer 4$1,121 AUD
Retailer 2$1,156 AUD
Retailer 6$1,789 AUD
Retailer 8$2,205 AUD
Retailer 5$2,969 AUD
Brilliant Earth$4,031 AUD

28 data points across 9 retailers

3 retailers

Retailer 1
-
$800 AUD
Price last confirmed 64 days ago
Retailer 2
-
$2,969 AUD
View
Price last confirmed 68 days ago
Most Expensive
B
Brilliant Earth
20781510A · Nov 6
$4,031 AUD
$2,770 USD
View
2 more retailers have this diamond

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.

B
3.01ct Cushion
$4,031 AUD