Round|Natural|IGI

0.30ct J I1 Round Natural Diamond

VG • J/I1 • IGI 485142351

Shape and cutting style on the report: Round brilliant

Certificate IGI 485142351

Diamond specifications and retailer prices

From $167 USD
As of October 28, 2026
Save $590 USD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $757 USD at NZ Jewellers · As of October 29, 2026
View at NZ Jewellers

About this 0.3ct natural round diamond

This 0.3ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 485142351. Listed at 8 retailers as of October 28, 2026, with prices from $167 to $757, a $590 spread on the same certified stone. NZ Jewellers lists it at $757. 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

0.30
Carat
J
Color
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40°
OriginNatural
Grading LabIGI
CertificateIGI 485142351
Dimensions4.18 × 4.22 × 2.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
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Top View
4.18 mm4.22 mm0.30 ctJ / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 485142351
Side View
Table 57.0%Crown 36.7°Girdle: STK-THKPavilion 40°Culet: NoneDepth 63.3%

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 28
Current: $305 USD|Low: $160 USD|High: $305 USD|Avg: $232 USD|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 2$162 USD
Retailer 3$211 USD
Retailer 4$255 USD
Retailer 1$305 USD

18 data points across 4 retailers

8 retailers$167 USD to $757 USD

B+
Cheapest Retailer
-
$167 USD
B+
Retailer 2
-
$180 USD
View
B+
Retailer 3
-
$186 USD
View
B+
Retailer 4
-
$205 USD
View
B+
Retailer 5
-
$211 USD
View
B+
Retailer 6
-
$225 USD
View
B
Retailer 7
-
$305 USD
€290 EUR
View
Most Expensive
C
NZ Jewellers
4eeb94c7-c1d7-41ba-ac12-cefdff750e02 · Oct 29
$757 USD
View
7 more retailers have this diamond
Prices start from $167 USDSave up to $590 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+
0.30ct Round
$167 USD