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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 €2,481 EUR
$2,770 USD
As of November 6, 2026
3 retailers carry this diamond
Most expensive: €2,481 EUR 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: €2,481 EUR|Low: €493 EUR|High: €2,535 EUR|Avg: €1,126 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 5, 2026
Retailer 9€493 EUR
Retailer 3€598 EUR
Retailer 7€662 EUR
Retailer 4€690 EUR
Retailer 2€711 EUR
Retailer 6€1,101 EUR
Retailer 8€1,357 EUR
Retailer 5€1,827 EUR
Brilliant Earth€2,481 EUR

28 data points across 9 retailers

3 retailers

Retailer 1
-
€493 EUR
Price last confirmed 63 days ago
Retailer 2
-
€1,827 EUR
View
Price last confirmed 67 days ago
Most Expensive
B
Brilliant Earth
20781510A · Nov 6
€2,481 EUR
$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
€2,481 EUR