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Cushion|Lab Grown|IGI

3.05ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG753502671

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

Certificate IGI LG753502671

Diamond specifications and retailer prices

From $844 USD
As of October 29, 2026
Save $1,126 USD (57%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,970 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.05ct lab-grown cushion diamond

This 3.05ct 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 LG753502671 or 753502671. Listed at 3 retailers as of October 28, 2026, with prices from $844 to $1,970, a $1,126 spread on the same certified stone. Rare Carat lists it at $1,970. 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

3.05
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG753502671
Dimensions8.55 × 8.41 × 5.23 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.55 mm8.41 mm3.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG753502671
Side View
Table 61.0%Crown 36.5°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 62.2%

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: Oct 29
Current: $1,970 USD|Low: $406 USD|High: $4,300 USD|Avg: $1,743 USD|-3.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 19, 2026
Retailer 6$406 USD
Retailer 3$844 USD
Retailer 8$1,006 USD
Retailer 4$1,058 USD
Retailer 7$1,090 USD
Retailer 2$1,724 USD
Rare Carat$1,970 USD
Retailer 5$3,260 USD
Retailer 9$4,300 USD

4 data points across 9 retailers

3 retailers$844 USD to $1,970 USD

A
Cheapest Retailer
-
$844 USD
B+
Retailer 2
-
$1,724 USD
View
Most Expensive
B
Rare Carat
LAX06-080D · Oct 28
$1,970 USD
View
2 more retailers have this diamond
Prices start from $844 USDSave up to $1,126 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
3.05ct Cushion
$844 USD