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0.31ct F I1 Round Natural Diamond

VG • F/I1 • IGI 485165849

Shape and cutting style on the report: Round brilliant

Certificate IGI 485165849

Diamond specifications and retailer prices

From $206 USD
As of October 31, 2026
Save $725 USD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $931 USD 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 F colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 485165849. Listed at 8 retailers as of October 31, 2026, with prices from $206 to $931, a $725 spread on the same certified stone. NZ Jewellers lists it at $931. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.31
Carat
F
Color
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
Crown angle37.4°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 485165849
Dimensions4.26 × 4.28 × 2.69 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
4.26 mm4.28 mm0.31 ctF / I1
OriginNatural
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateIGI 485165849
Side View
Table 57.5%Crown 37.4°Girdle: UNDPavilion 40.5°Culet: NoneDepth 63.1%

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 31
Current: $359 USD|Low: $206 USD|High: $361 USD|Avg: $285 USD|+3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2$208 USD
Retailer 3$270 USD
Retailer 4$310 USD
Retailer 1$359 USD

14 data points across 4 retailers

8 retailers$206 USD to $931 USD

B+
Cheapest Retailer
-
$206 USD
B+
Retailer 2
-
$221 USD
View
B+
Retailer 3
-
$229 USD
View
B+
Retailer 4
-
$262 USD
View
B+
Retailer 5
-
$270 USD
View
B+
Retailer 6
-
$277 USD
View
B
Retailer 7
-
$359 USD
€342 EUR
View
Most Expensive
C
NZ Jewellers
aa2c7983-d02a-4e31-b1cb-5b569127e32e · Nov 2
$931 USD
View
7 more retailers have this diamond
Prices start from $206 USDSave up to $725 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.

B+
0.31ct Round
$206 USD