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Round|Lab Grown|IGI

3.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG735588309

Shape and cutting style on the report: Round brilliant

Certificate IGI LG735588309

Diamond specifications and retailer prices

From $527 AUD
As of November 5, 2026
Save $2,501 AUD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,028 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.05ct lab-grown round diamond

This 3.05ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG735588309 or 735588309. Listed at 18 retailers as of November 5, 2026, with prices from $527 to $3,028, a $2,501 spread on the same certified stone. Brilliant Earth lists it at $3,028. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735588309
Dimensions9.33 × 9.37 × 5.68 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.33 mm9.37 mm3.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735588309
Side View
Table 60.0%Crown 33.3°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.7%

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 5
Current: $3,028 AUD|Low: $511 AUD|High: $3,028 AUD|Avg: $1,365 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 6$527 AUD
Retailer 9$597 AUD
Retailer 16$611 AUD
Retailer 3$654 AUD
Retailer 5$654 AUD
Retailer 14$871 AUD
Retailer 8$879 AUD
Retailer 2$1,044 AUD
Retailer 10$1,166 AUD
Retailer 4$1,211 AUD
Retailer 17$1,361 AUD
Retailer 15$1,613 AUD
Retailer 13$1,917 AUD
Retailer 7$2,103 AUD
Retailer 12$2,457 AUD
Retailer 11$2,548 AUD
Brilliant Earth$3,028 AUD

44 data points across 17 retailers

18 retailers$527 AUD to $3,028 AUD

A
Cheapest Retailer
-
$527 AUD
A
Retailer 2
-
$597 AUD
View
Final sale: no returns
A
Retailer 3
-
$611 AUD
View
A
Retailer 4
-
$654 AUD
View
Retailer 5
-
$654 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$871 AUD
View
B+
Retailer 7
-
$879 AUD
View
A
Retailer 8
-
$1,044 AUD
View
A
Retailer 9
-
$1,166 AUD
View
A
Retailer 10
-
$1,211 AUD
View
B+
Retailer 11
-
$1,361 AUD
View
B+
Retailer 12
-
$1,613 AUD
View
B+
Retailer 13
-
$1,660 AUD
View
B+
Retailer 14
-
$1,917 AUD
View
B
Retailer 15
-
$2,103 AUD
View
B
Retailer 16
-
$2,457 AUD
View
B
Retailer 17
-
$2,548 AUD
View
Most Expensive
B
Brilliant Earth
15923330A · Nov 5
$3,028 AUD
$2,120 USD
View
17 more retailers have this diamond
Prices start from $527 AUDSave up to $2,501 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 Round
$527 AUD