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Cushion|Lab Grown|IGI

3.05ct F SI2 Cushion Lab Grown Diamond

ID • F/SI2 • IGI LG625428284

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG625428284

Diamond specifications and retailer prices

From $688 AUD
As of November 6, 2026
Save $2,202 AUD (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,891 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625428284 or 625428284. Listed at 11 retailers as of November 5, 2026, with prices from $688 to $2,891, a $2,202 spread on the same certified stone. MOH London lists it at $2,891. 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
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625428284
Dimensions10.45 × 7.73 × 4.97 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.45 mm7.73 mm3.05 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625428284
Side View
Table 60.0%Crown 34.5°Girdle: THN-MEDPavilion 35.4°Culet: NoneDepth 64.3%

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: $2,891 AUD|Low: $669 AUD|High: $5,269 AUD|Avg: $1,754 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$688 AUD
Retailer 9$742 AUD
Retailer 8$993 AUD
Retailer 2$1,175 AUD
Retailer 10$1,183 AUD
Retailer 3$1,201 AUD
Retailer 4$1,796 AUD
Retailer 6$2,794 AUD
Retailer 7$2,838 AUD
MOH London$2,891 AUD

44 data points across 10 retailers

11 retailers$688 AUD to $2,891 AUD

A
Cheapest Retailer
-
$688 AUD
Final sale: no returns
Retailer 2
-
$742 AUD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
$993 AUD
View
A
Retailer 4
-
$1,175 AUD
View
A
Retailer 5
-
$1,183 AUD
View
A
Retailer 6
-
$1,201 AUD
View
A
Retailer 7
-
$1,403 AUD
View
B+
Retailer 8
-
$1,796 AUD
View
B
Retailer 9
-
$2,794 AUD
View
B
Retailer 10
-
$2,838 AUD
View
Most Expensive
B+
MOH London
LG625428284 · Nov 5
$2,891 AUD
£1,564 GBP
View
10 more retailers have this diamond
Prices start from $688 AUDSave up to $2,202 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
$688 AUD