CaratHunter
Plans
Round|Natural|IGI

0.31ct J I1 Round Natural Diamond

EX • J/I1 • IGI 320851903

Shape and cutting style on the report: Round brilliant

Certificate IGI 320851903

Diamond specifications and retailer prices

From €153 EUR
$172 USD
As of October 31, 2026
Save €540 EUR (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €694 EUR at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 0.31ct natural round diamond

This 0.31ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 320851903. Listed at 8 retailers as of October 31, 2026, with prices from €153 to €694, a €540 spread on the same certified stone. NZ Jewellers lists it at €694. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.31
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 320851903
Dimensions4.39 × 4.43 × 2.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
4.39 mm4.43 mm0.31 ctJ / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI 320851903
Side View
Table 62.5%Crown 34.3°Girdle: UNDPavilion 40.4°Culet: NoneDepth 58.8%

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 31
Current: €276 EUR|Low: €148 EUR|High: €279 EUR|Avg: €213 EUR|+3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2€150 EUR
Retailer 3€195 EUR
Retailer 4€234 EUR
Retailer 1€276 EUR

17 data points across 4 retailers

8 retailers€153 EUR to €694 EUR

B+
Cheapest Retailer
-
€153 EUR
$172 USD
B+
Retailer 2
-
€165 EUR
$185 USD
View
B+
Retailer 3
-
€171 EUR
$192 USD
View
Retailer 4
-
€189 EUR
$212 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
€195 EUR
$218 USD
View
B+
Retailer 6
-
€206 EUR
$231 USD
View
B
Retailer 7
-
€276 EUR
View
Most Expensive
C
NZ Jewellers
6201fe03-5bad-4a38-991d-5938059b446a · Nov 2
€694 EUR
$778 USD
View
7 more retailers have this diamond
Prices start from €153 EURSave up to €540 EUR

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+
0.31ct Round
€153 EUR