Round|Natural|GIA

3.11ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1226638556

Certificate GIA 1226638556

Diamond specifications and retailer prices

From $44,238 AUD
€29,595 EUR
As of November 2, 2026
Save $2,741 AUD (6%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $63,162 AUD at MOH London · As of October 19, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1226638556. Listed at 10 retailers as of November 1, 2026, with a relatively tight 6% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1226638556
Dimensions9.33 × 9.30 × 5.78 mm
L/W Ratio1.00
Key to symbols
Crystal, Cloud, Needle
Top View
9.33 mm9.30 mm3.11 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1226638556
Side View
Table 58.0%Crown 35.5°Girdle: STK-UNDPavilion 41°Culet: NoneDepth 62.1%

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: Nov 2
Current: $63,162 AUD|Low: $37,002 AUD|High: $63,583 AUD|Avg: $45,210 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4$38,572 AUD
Retailer 7$40,517 AUD
Retailer 6$40,704 AUD
Retailer 3$41,659 AUD
Retailer 10$41,904 AUD
Retailer 9$44,160 AUD
Retailer 8$44,584 AUD
Retailer 2$46,979 AUD
Retailer 5$51,415 AUD
MOH London$63,162 AUD

37 data points across 10 retailers

10 retailers$44,238 AUD to $46,979 AUD

Retailer 1
-
$38,572 AUD
$27,095 USD
Price last confirmed 15 days ago
Retailer 2
-
$40,517 AUD
View
Price last confirmed 29 days ago
Retailer 3
-
$41,659 AUD
£23,042 GBP
View
Price last confirmed 13 days ago
Retailer 4
-
$41,904 AUD
$29,435 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$44,160 AUD
$31,020 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$44,238 AUD
€29,595 EUR
View
Retailer 7
-
$44,584 AUD
£24,659 GBP
View
Price last confirmed 33 days ago
B
Retailer 8
-
$46,979 AUD
€31,429 EUR
View
Retailer 9
-
$51,415 AUD
ZAR 583,460 ZAR
View
Price last confirmed 15 days ago
Most Expensive
MOH London
80627ED0F · Oct 19
$63,162 AUD
£34,935 GBP
View
Price last confirmed 14 days ago
9 more retailers have this diamond
Prices start from $44,238 AUDSave up to $2,741 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+
3.11ct Round
$44,238 AUD