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Cushion|Lab Grown|IGI

3.01ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG487187869

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG487187869

Diamond specifications and retailer prices

From $729 USD
As of November 6, 2026
Save $1,841 USD (72%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,570 USD at Brilliant Earth · As of November 6, 2026
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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487187869 or 487187869. Listed at 8 retailers as of November 6, 2026, with prices from $729 to $2,570, a $1,841 spread on the same certified stone. Brilliant Earth lists it at $2,570. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487187869
Dimensions8.45 × 8.19 × 5.53 mm
L/W Ratio1.03
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
8.45 mm8.19 mm3.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487187869
Side View
Table 59.0%Crown 37.5°Girdle: MED-VTKPavilion 38.9°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,570 USD|Low: $512 USD|High: $2,840 USD|Avg: $1,261 USD|-9.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 10$512 USD
Retailer 4$745 USD
Retailer 9$770 USD
Retailer 6$802 USD
Retailer 8$815 USD
Retailer 5$869 USD
Retailer 2$925 USD
Retailer 3$2,096 USD
Retailer 7$2,099 USD
Brilliant Earth$2,570 USD

30 data points across 10 retailers

8 retailers$729 USD to $2,570 USD

A
Cheapest Retailer
-
$729 USD
Retailer 2
-
$745 USD
View
Price last confirmed 15 days ago
Retailer 3
-
$802 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$925 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$1,972 USD
View
Price last confirmed 17 days ago
Retailer 6
-
$2,096 USD
View
Price last confirmed 17 days ago
Retailer 7
-
$2,099 USD
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
5500654B · Nov 6
$2,570 USD
View
7 more retailers have this diamond
Prices start from $729 USDSave up to $1,841 USD

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.

A
3.01ct Cushion
$729 USD