Round|Natural|GIA

3.11ct J SI2 Round Natural Diamond

EX • J/SI2

Diamond specifications and retailer prices

From $37,328 NZD
$21,038 USD
As of October 31, 2026
Save $20,396 NZD (35%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $57,723 NZD 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 October 30, 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: Oct 31
Current: $57,723 NZD|Low: $36,838 NZD|High: $57,723 NZD|Avg: $45,768 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4$37,328 NZD
Retailer 8$39,739 NZD
Retailer 5$40,747 NZD
Retailer 7$42,784 NZD
Retailer 3$44,141 NZD
Retailer 9$44,182 NZD
Retailer 6$45,839 NZD
Retailer 10$49,279 NZD
Retailer 2$54,966 NZD
NZ Jewellers$57,723 NZD

38 data points across 10 retailers

16 retailers$37,328 NZD to $57,723 NZD

A
Cheapest Retailer
-
$37,328 NZD
$21,038 USD
B+
Retailer 2
-
$39,739 NZD
CA$31,107 CAD
View
B+
Retailer 3
-
$40,747 NZD
$22,965 USD
View
B+
Retailer 4
-
$42,784 NZD
$24,113 USD
View
Retailer 5
-
$44,141 NZD
$24,878 USD
View
Price last confirmed 51 days ago
B+
Retailer 6
-
$44,141 NZD
$24,878 USD
View
Retailer 7
-
$44,141 NZD
$24,878 USD
View
Price last confirmed 18 days ago
B+
Retailer 8
-
$44,182 NZD
$24,901 USD
View
B+
Retailer 9
-
$45,839 NZD
$25,835 USD
View
Retailer 10
-
$45,839 NZD
$25,835 USD
View
Price last confirmed 18 days ago
B
Retailer 11
-
$49,279 NZD
$27,774 USD
View
Retailer 12
-
$50,892 NZD
$28,683 USD
View
Price last confirmed 56 days ago
B
Retailer 13
-
$54,966 NZD
£24,393 GBP
View
B
Retailer 14
-
$57,723 NZD
$32,533 USD
View
Retailer 15
-
$57,723 NZD
$32,533 USD
View
Price last confirmed 51 days ago
Most Expensive
NZ Jewellers
816bb631-2924-4e95-a37c-ec5579966bf9 · Oct 14
$57,723 NZD
$32,533 USD
View
Price last confirmed 18 days ago
15 more retailers have this diamond
Prices start from $37,328 NZDSave up to $20,396 NZD

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
$37,328 NZD