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0.31ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 607305230

Shape and cutting style on the report: Round brilliant

Certificate IGI 607305230

Diamond specifications and retailer prices

From €166 EUR
$185 USD
As of October 31, 2026
Save €584 EUR (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €750 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 607305230. Listed at 12 retailers as of October 30, 2026, with prices from €166 to €750, a €584 spread on the same certified stone. NZ Jewellers lists it at €750. 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 angle35.6°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 607305230
Dimensions4.29 × 4.27 × 2.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
4.29 mm4.27 mm0.31 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 607305230
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.2%

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 31
Current: €750 EUR|Low: €163 EUR|High: €750 EUR|Avg: €285 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 11€164 EUR
Retailer 13€166 EUR
Retailer 10€175 EUR
Retailer 3€178 EUR
Retailer 9€184 EUR
Retailer 12€213 EUR
Retailer 14€223 EUR
Retailer 6€250 EUR
Retailer 5€282 EUR
Retailer 8€301 EUR
Retailer 2€341 EUR
Retailer 4€353 EUR
Retailer 7€382 EUR
NZ Jewellers€750 EUR

40 data points across 14 retailers

12 retailers€166 EUR to €750 EUR

A
Cheapest Retailer
-
€166 EUR
$185 USD
Retailer 2
-
€175 EUR
$195 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
€178 EUR
$199 USD
View
A
Retailer 4
-
€184 EUR
$206 USD
View
B+
Retailer 5
-
€213 EUR
$238 USD
View
B+
Retailer 6
-
€223 EUR
$249 USD
View
B+
Retailer 7
-
€282 EUR
$315 USD
View
B+
Retailer 8
-
€301 EUR
View
B+
Retailer 9
-
€321 EUR
£282 GBP
View
B+
Retailer 10
-
€341 EUR
£300 GBP
View
B+
Retailer 11
-
€382 EUR
£336 GBP
View
Most Expensive
C
NZ Jewellers
305643ee-613d-45d6-8494-73ccda8d8eb7 · Oct 30
€750 EUR
$838 USD
View
11 more retailers have this diamond
Prices start from €166 EURSave up to €584 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
€166 EUR