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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 $1,202 AUD
$844 USD
As of October 30, 2026
Save $1,603 AUD (57%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,804 AUD 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 $1,202 to $2,804, a $1,603 spread on the same certified stone. Rare Carat lists it at $2,804. 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
Colour
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 30
Current: $2,804 AUD|Low: $578 AUD|High: $6,121 AUD|Avg: $2,481 AUD|-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$578 AUD
Retailer 3$1,202 AUD
Retailer 8$1,432 AUD
Retailer 4$1,506 AUD
Retailer 7$1,552 AUD
Retailer 2$2,454 AUD
Rare Carat$2,804 AUD
Retailer 5$4,641 AUD
Retailer 9$6,121 AUD

4 data points across 9 retailers

3 retailers$1,202 AUD to $2,804 AUD

A
Cheapest Retailer
-
$1,202 AUD
$844 USD
B+
Retailer 2
-
$2,454 AUD
$1,724 USD
View
Most Expensive
B
Rare Carat
LAX06-080D · Oct 28
$2,804 AUD
$1,970 USD
View
2 more retailers have this diamond
Prices start from $1,202 AUDSave up to $1,603 AUD

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
$1,202 AUD