CaratHunter
Plans
Round|Lab Grown|IGI

3.05ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG815653250

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815653250

Diamond specifications and retailer prices

From $520 AUD
As of November 5, 2026
Save $3,194 AUD (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,714 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG815653250 or 815653250. Listed at 20 retailers as of November 5, 2026, with prices from $520 to $3,714, a $3,194 spread on the same certified stone. Brilliant Earth lists it at $3,714. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815653250
Dimensions9.43 × 9.37 × 5.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.43 mm9.37 mm3.05 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815653250
Side View
Table 61.0%Crown 32.8°Girdle: THN-MEDPavilion 41.6°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,714 AUD|Low: $500 AUD|High: $3,714 AUD|Avg: $1,453 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
November 5, 2026
Retailer 15$520 AUD
Retailer 8$603 AUD
Retailer 4$644 AUD
Retailer 16$644 AUD
Retailer 10$857 AUD
Retailer 14$869 AUD
Retailer 11$1,014 AUD
Retailer 7$1,096 AUD
Retailer 9$1,149 AUD
Retailer 12$1,514 AUD
Retailer 6$1,558 AUD
Retailer 3$2,073 AUD
Retailer 5$2,093 AUD
Retailer 2$2,511 AUD
Retailer 13$2,886 AUD
Brilliant Earth$3,714 AUD

43 data points across 16 retailers

20 retailers$520 AUD to $3,714 AUD

A
Cheapest Retailer
-
$520 AUD
A
Retailer 2
-
$581 AUD
View
Final sale: no returns
A
Retailer 3
-
$603 AUD
View
Retailer 4
-
$644 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$644 AUD
View
A
Retailer 6
-
$731 AUD
View
A
Retailer 7
-
$857 AUD
View
B+
Retailer 8
-
$869 AUD
View
A
Retailer 9
-
$1,014 AUD
View
A
Retailer 10
-
$1,096 AUD
View
A
Retailer 11
-
$1,149 AUD
View
B+
Retailer 12
-
$1,514 AUD
View
B+
Retailer 13
-
$1,558 AUD
View
B+
Retailer 14
-
$2,073 AUD
View
B+
Retailer 15
-
$2,093 AUD
View
B+
Retailer 16
-
$2,130 AUD
View
B
Retailer 17
-
$2,453 AUD
View
B
Retailer 18
-
$2,511 AUD
View
Retailer 19
-
$2,886 AUD
View
Price last confirmed 19 days ago
Most Expensive
B
Brilliant Earth
20763709A · Nov 5
$3,714 AUD
$2,600 USD
View
19 more retailers have this diamond
Prices start from $520 AUDSave up to $3,194 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
$520 AUD