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Round|Lab Grown|GCAL

3.09ct G SI1 Round Lab Grown Diamond

EX • G/SI1

Diamond specifications and retailer prices

From $641 AUD
$450 USD
As of October 30, 2026
Save $2,697 AUD (81%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,338 AUD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL. Listed at 4 retailers as of October 30, 2026, with prices from $641 to $3,338, a $2,697 spread on the same certified stone. Diamond Exchange Canada lists it at $3,338. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
Dimensions9.32 × 9.36 × 5.80 mm
L/W Ratio1.00
Top View
9.32 mm9.36 mm3.09 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCuletDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,338 AUD|Low: $534 AUD|High: $3,338 AUD|Avg: $1,445 AUD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 20, 2026
Retailer 3$534 AUD
Retailer 2$641 AUD
Retailer 4$653 AUD
Retailer 6$843 AUD
Retailer 5$2,350 AUD
Diamond Exchange Canada$3,338 AUD

10 data points across 6 retailers

4 retailers$641 AUD to $3,338 AUD

Retailer 1
-
$534 AUD
$375 USD
Price last confirmed 37 days ago
B+
Retailer 2
-
$641 AUD
$450 USD
View
Retailer 3
-
$653 AUD
$459 USD
View
Price last confirmed 39 days ago
Most Expensive
C
Diamond Exchange Canada
1986529824 · Oct 30
$3,338 AUD
CA$3,256 CAD
View
3 more retailers have this diamond
Prices start from $641 AUDSave up to $2,697 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.

B+
3.09ct Round
$641 AUD