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Cushion|Lab Grown|IGI

3.05ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG671479495

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG671479495

Diamond specifications and retailer prices

From $897 AUD
$630 USD
As of October 29, 2026
Save $6,221 AUD (87%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,118 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG671479495 or 671479495. Listed at 8 retailers as of October 29, 2026, with prices from $897 to $7,118, a $6,221 spread on the same certified stone. Do Amore Diamonds lists it at $7,118. 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 angle33.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671479495
Dimensions8.64 × 8.42 × 5.48 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.64 mm8.42 mm3.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671479495
Side View
Table 66.0%Crown 33.7°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 65.1%

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: $1,720 AUD|Low: $639 AUD|High: $2,961 AUD|Avg: $1,689 AUD|+2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 6$897 AUD
Retailer 7$1,236 AUD
Retailer 2$1,239 AUD
Retailer 8$1,323 AUD
Retailer 4$1,495 AUD
Retailer 1$1,720 AUD
Retailer 5$2,801 AUD
Retailer 3$2,804 AUD

11 data points across 8 retailers

8 retailers$897 AUD to $7,118 AUD

A
Cheapest Retailer
-
$897 AUD
$630 USD
Final sale: no returns
A
Retailer 2
-
$1,236 AUD
$868 USD
View
A
Retailer 3
-
$1,239 AUD
$870 USD
View
A
Retailer 4
-
$1,495 AUD
$1,050 USD
View
B+
Retailer 5
-
$1,720 AUD
£951 GBP
View
B+
Retailer 6
-
$2,801 AUD
$1,967 USD
View
B
Retailer 7
-
$2,804 AUD
$1,970 USD
View
Most Expensive
B
Do Amore Diamonds
27-27E6388C2 · Oct 31
$7,118 AUD
$5,000 USD
View
7 more retailers have this diamond
Prices start from $897 AUDSave up to $6,221 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
$897 AUD