CaratHunter
Plans
Round|Natural|IGI

3.09ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 623473411

Shape and cutting style on the report: Round brilliant

Certificate IGI 623473411

Diamond specifications and retailer prices

From $17,017 USD
As of October 26, 2026
Save $9,578 USD (36%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $26,595 USD at MOH London · As of October 26, 2026
View at MOH London

About this 3.09ct natural round diamond

This 3.09ct 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 IGI 623473411. Listed at 10 retailers as of October 26, 2026, with prices from $17,017 to $26,595, a $9,578 spread on the same certified stone. MOH London lists it at $26,595. 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
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 623473411
Dimensions9.24 × 9.20 × 5.81 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
9.24 mm9.20 mm3.09 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 623473411
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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 26
Current: $26,595 USD|Low: $17,017 USD|High: $30,293 USD|Avg: $21,457 USD|-12.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 6$17,017 USD
Retailer 7$17,257 USD
Retailer 2$17,725 USD
Retailer 3$17,785 USD
Retailer 5$18,660 USD
Retailer 8$18,771 USD
Retailer 10$20,514 USD
Retailer 9$20,866 USD
Retailer 4$21,905 USD
MOH London$26,595 USD

29 data points across 10 retailers

10 retailers$17,017 USD to $26,595 USD

A
Cheapest Retailer
-
$17,017 USD
A
Retailer 2
-
$17,257 USD
View
A
Retailer 3
-
$17,725 USD
£13,957 GBP
View
A
Retailer 4
-
$17,785 USD
View
A
Retailer 5
-
$18,660 USD
£14,693 GBP
View
Retailer 6
-
$18,771 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$20,514 USD
€19,537 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
-
$20,866 USD
View
B+
Retailer 9
-
$21,905 USD
ZAR 353,872 ZAR
View
Most Expensive
B+
MOH London
F650EBF77 · Oct 26
$26,595 USD
£20,941 GBP
View
9 more retailers have this diamond
Prices start from $17,017 USDSave up to $9,578 USD

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
3.09ct Round
$17,017 USD