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Round|Lab Grown|GIA

3.09ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 2486885853

Certificate GIA 2486885853

Diamond specifications and retailer prices

From $1,289 AUD
As of November 4, 2026
Save $4,725 AUD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,014 AUD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.09ct lab-grown round diamond

This 3.09ct 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 GIA 2486885853. Listed at 13 retailers as of November 4, 2026, with prices from $1,289 to $6,014, a $4,725 spread on the same certified stone. Brilliant Earth lists it at $6,014. 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

3.09
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabGIA
CertificateGIA 2486885853
Dimensions9.41 × 9.45 × 5.72 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
9.41 mm9.45 mm3.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2486885853
Side View
Table 59.0%Crown 32.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.6%

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 4
Current: $6,014 AUD|Low: $1,289 AUD|High: $6,014 AUD|Avg: $2,949 AUD|+1.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10$1,289 AUD
Retailer 12$1,409 AUD
Retailer 11$1,586 AUD
Retailer 9$1,781 AUD
Retailer 8$1,810 AUD
Retailer 2$2,153 AUD
Retailer 7$2,238 AUD
Retailer 6$2,913 AUD
Retailer 3$3,913 AUD
Retailer 4$5,258 AUD
Retailer 5$5,513 AUD
Brilliant Earth$6,014 AUD

44 data points across 12 retailers

13 retailers$1,289 AUD to $6,014 AUD

A
Cheapest Retailer
-
$1,289 AUD
Final sale: no returns
A
Retailer 2
-
$1,409 AUD
View
B+
Retailer 3
-
$1,586 AUD
View
B+
Retailer 4
-
$1,781 AUD
View
B+
Retailer 5
-
$1,810 AUD
View
B+
Retailer 6
-
$2,153 AUD
View
B+
Retailer 7
-
$2,238 AUD
View
B
Retailer 8
-
$2,913 AUD
View
B
Retailer 9
-
$3,913 AUD
View
B
Retailer 10
-
$4,146 AUD
View
B
Retailer 11
-
$5,258 AUD
View
B
Retailer 12
-
$5,513 AUD
View
Most Expensive
B
Brilliant Earth
9754017A · Nov 5
$6,014 AUD
$4,210 USD
View
12 more retailers have this diamond
Prices start from $1,289 AUDSave up to $4,725 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
3.09ct Round
$1,289 AUD