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0.31ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 815635557

Shape and cutting style on the report: Round brilliant

Certificate IGI 815635557

Diamond specifications and retailer prices

From €103 EUR
₹10,921 INR
As of November 1, 2026
Save €597 EUR (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €700 EUR at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 815635557. Listed at 12 retailers as of October 30, 2026, with prices from €103 to €700, a €597 spread on the same certified stone. NZ Jewellers lists it at €700. 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

0.31
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 815635557
Dimensions4.30 × 4.36 × 2.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
4.30 mm4.36 mm0.31 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 815635557
Side View
Table 59.0%Crown 35.3°Girdle: THN-MEDPavilion 41.7°Culet: NoneDepth 62.9%

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: Nov 1
Current: €700 EUR|Low: €102 EUR|High: €700 EUR|Avg: €274 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2€103 EUR
Retailer 10€155 EUR
Retailer 8€166 EUR
Retailer 7€172 EUR
Retailer 11€208 EUR
Retailer 9€271 EUR
Retailer 6€281 EUR
Retailer 3€306 EUR
Retailer 4€318 EUR
Retailer 5€357 EUR
NZ Jewellers€700 EUR

43 data points across 11 retailers

12 retailers€103 EUR to €700 EUR

A
Cheapest Retailer
-
€103 EUR
₹10,921 INR
A
Retailer 2
-
€155 EUR
$173 USD
View
Retailer 3
-
€166 EUR
$185 USD
View
Price last confirmed 38 days ago
Retailer 4
-
€166 EUR
$186 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
€172 EUR
$192 USD
View
B+
Retailer 6
-
€208 EUR
$232 USD
View
B+
Retailer 7
-
€271 EUR
$302 USD
View
B+
Retailer 8
-
€281 EUR
View
B+
Retailer 9
-
€306 EUR
$342 USD
View
B+
Retailer 10
-
€318 EUR
£280 GBP
View
B+
Retailer 11
-
€357 EUR
£314 GBP
View
Most Expensive
C
NZ Jewellers
59877cd0-646d-46d0-9ead-6101f9b78b76 · Oct 30
€700 EUR
$782 USD
View
11 more retailers have this diamond
Prices start from €103 EURSave up to €597 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.

A
0.31ct Round
€103 EUR