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Round|Lab Grown|IGI

3.08ct E SI1 Round Lab Grown Diamond

ID • E/SI1

Diamond specifications and retailer prices

From $629 AUD
As of November 3, 2026
Save $2,551 AUD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,180 AUD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3.08ct lab-grown round diamond

This 3.08ct lab-grown round 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. Listed at 9 retailers as of October 31, 2026, with prices from $629 to $3,180, a $2,551 spread on the same certified stone. Blue Nile lists it at $3,180. 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

3.08
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.32 × 9.35 × 5.77 mm
L/W Ratio1.00
Top View
9.32 mm9.35 mm3.08 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.8%

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 3
Current: $3,180 AUD|Low: $514 AUD|High: $3,180 AUD|Avg: $1,581 AUD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 20, 2026
Retailer 4$629 AUD
Retailer 2$703 AUD
Retailer 3$779 AUD
Retailer 6$1,954 AUD
Retailer 5$2,504 AUD
Blue Nile$3,180 AUD

9 data points across 6 retailers

9 retailers$629 AUD to $3,180 AUD

A
Cheapest Retailer
-
$629 AUD
Retailer 2
-
$629 AUD
View
Price last confirmed 27 days ago
A
Retailer 3
-
$703 AUD
View
Retailer 4
-
$703 AUD
View
Price last confirmed 28 days ago
Retailer 5
-
$779 AUD
View
Price last confirmed 27 days ago
A
Retailer 6
-
$779 AUD
View
Retailer 7
-
$2,504 AUD
View
Price last confirmed 27 days ago
B
Retailer 8
-
$2,504 AUD
View
Most Expensive
B
Blue Nile
25280163 · Oct 31
$3,180 AUD
$2,226 USD
View
8 more retailers have this diamond
Prices start from $629 AUDSave up to $2,551 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
3.08ct Round
$629 AUD