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Cushion|Lab Grown|IGI

3.05ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG813655575

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG813655575

Diamond specifications and retailer prices

From $963 AUD
As of November 7, 2026
Save $5,935 AUD (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,899 AUD at Do Amore Diamonds · As of November 6, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG813655575 or 813655575. Listed at 11 retailers as of November 6, 2026, with prices from $963 to $6,899, a $5,935 spread on the same certified stone. Do Amore Diamonds lists it at $6,899. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.3°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813655575
Dimensions10.12 × 7.40 × 4.91 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.12 mm7.40 mm3.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813655575
Side View
Table 62.0%Crown 30.3°Girdle: MED-THKPavilion 32.5°Culet: NoneDepth 66.4%

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 7
Current: $6,899 AUD|Low: $963 AUD|High: $6,899 AUD|Avg: $2,512 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 8$963 AUD
Retailer 6$1,164 AUD
Retailer 10$1,276 AUD
Retailer 7$1,442 AUD
Retailer 5$1,642 AUD
Retailer 9$2,382 AUD
Retailer 4$3,871 AUD
Retailer 3$4,536 AUD
Retailer 2$4,595 AUD
Do Amore Diamonds$6,899 AUD

37 data points across 10 retailers

11 retailers$963 AUD to $6,899 AUD

A
Cheapest Retailer
-
$963 AUD
A
Retailer 2
-
$1,164 AUD
View
B+
Retailer 3
-
$1,276 AUD
View
A
Retailer 4
-
$1,442 AUD
View
A
Retailer 5
-
$1,642 AUD
View
B+
Retailer 6
-
$1,793 AUD
View
B+
Retailer 7
-
$2,382 AUD
View
B
Retailer 8
-
$3,871 AUD
View
B
Retailer 9
-
$4,536 AUD
View
B
Retailer 10
-
$4,595 AUD
View
Most Expensive
B
Do Amore Diamonds
27-7D1B39CDE · Nov 6
$6,899 AUD
$4,740 USD
View
10 more retailers have this diamond
Prices start from $963 AUDSave up to $5,935 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
$963 AUD