Round|Natural|GIA

3.11ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1226638556

Certificate GIA 1226638556

Diamond specifications and retailer prices

From $39,726 SGD
€29,595 EUR
As of October 29, 2026
Save $2,462 SGD (6%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $56,719 SGD 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 October 29, 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: Oct 29
Current: $56,719 SGD|Low: $33,228 SGD|High: $57,098 SGD|Avg: $40,599 SGD|-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$34,638 SGD
Retailer 7$36,384 SGD
Retailer 6$36,552 SGD
Retailer 3$37,410 SGD
Retailer 10$37,630 SGD
Retailer 9$39,656 SGD
Retailer 8$40,036 SGD
Retailer 2$42,188 SGD
Retailer 5$46,171 SGD
MOH London$56,719 SGD

37 data points across 10 retailers

10 retailers$39,726 SGD to $42,188 SGD

Retailer 1
-
$34,638 SGD
$27,095 USD
Price last confirmed 14 days ago
Retailer 2
-
$36,384 SGD
A$43,786 AUD
View
Price last confirmed 28 days ago
Retailer 3
-
$37,410 SGD
£23,042 GBP
View
Price last confirmed 13 days ago
Retailer 4
-
$37,630 SGD
$29,435 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$39,656 SGD
$31,020 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$39,726 SGD
€29,595 EUR
View
Retailer 7
-
$40,036 SGD
£24,659 GBP
View
Price last confirmed 33 days ago
B
Retailer 8
-
$42,188 SGD
€31,429 EUR
View
Retailer 9
-
$46,171 SGD
ZAR 583,460 ZAR
View
Price last confirmed 15 days ago
Most Expensive
MOH London
80627ED0F · Oct 19
$56,719 SGD
£34,935 GBP
View
Price last confirmed 14 days ago
9 more retailers have this diamond
Prices start from $39,726 SGDSave up to $2,462 SGD

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
$39,726 SGD