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Round|Natural|GIA

3.11ct J SI2 Round Natural Diamond

EX • J/SI2

Diamond specifications and retailer prices

From $30,019 AUD
$21,038 USD
As of November 2, 2026
Save $16,402 AUD (35%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $46,421 AUD at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 3.11ct natural round diamond

This 3.11ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 16 retailers as of November 2, 2026, with a 55% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.11
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions9.24 × 9.29 × 5.78 mm
L/W Ratio1.01
Top View
9.24 mm9.29 mm3.11 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.4%

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 2
Current: $46,421 AUD|Low: $29,625 AUD|High: $46,421 AUD|Avg: $36,805 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4$30,019 AUD
Retailer 8$31,958 AUD
Retailer 5$32,769 AUD
Retailer 7$34,407 AUD
Retailer 3$35,498 AUD
Retailer 9$35,531 AUD
Retailer 6$36,864 AUD
Retailer 10$39,631 AUD
Retailer 2$44,200 AUD
NZ Jewellers$46,421 AUD

38 data points across 10 retailers

16 retailers$30,019 AUD to $46,421 AUD

A
Cheapest Retailer
-
$30,019 AUD
$21,038 USD
B+
Retailer 2
-
$31,958 AUD
CA$31,107 CAD
View
B+
Retailer 3
-
$32,769 AUD
$22,965 USD
View
B+
Retailer 4
-
$34,407 AUD
$24,113 USD
View
Retailer 5
-
$35,498 AUD
$24,878 USD
View
Price last confirmed 53 days ago
B+
Retailer 6
-
$35,498 AUD
$24,878 USD
View
Retailer 7
-
$35,498 AUD
$24,878 USD
View
Price last confirmed 20 days ago
B+
Retailer 8
-
$35,531 AUD
$24,901 USD
View
B+
Retailer 9
-
$36,864 AUD
$25,835 USD
View
Retailer 10
-
$36,864 AUD
$25,835 USD
View
Price last confirmed 20 days ago
B
Retailer 11
-
$39,631 AUD
$27,774 USD
View
Retailer 12
-
$40,928 AUD
$28,683 USD
View
Price last confirmed 58 days ago
B
Retailer 13
-
$44,200 AUD
£24,391 GBP
View
B
Retailer 14
-
$46,421 AUD
$32,533 USD
View
Retailer 15
-
$46,421 AUD
$32,533 USD
View
Price last confirmed 53 days ago
Most Expensive
NZ Jewellers
816bb631-2924-4e95-a37c-ec5579966bf9 · Oct 14
$46,421 AUD
$32,533 USD
View
Price last confirmed 20 days ago
15 more retailers have this diamond
Prices start from $30,019 AUDSave up to $16,402 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
3.11ct Round
$30,019 AUD