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Radiant|Natural|IGI

0.30ct H SI1 Radiant Natural Diamond

VG • H/SI1 • IGI 815676649

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 815676649

Diamond specifications and retailer prices

From $422 NZD
$238 USD
As of November 1, 2026
Save $553 NZD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,918 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.3ct natural radiant diamond

This 0.3ct natural radiant sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815676649. Listed at 13 retailers as of November 1, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle38.5°
OriginNatural
Grading LabIGI
CertificateIGI 815676649
Dimensions4.85 × 3.29 × 2.31 mm
L/W Ratio1.47
Top View
4.85 mm3.29 mm0.30 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815676649
Side View
Table 66.0%Crown 36.7°Girdle: MediumPavilion 38.5°Culet: NoneDepth 70.2%

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: Nov 1
Current: $1,918 NZD|Low: $422 NZD|High: $1,962 NZD|Avg: $736 NZD|-2.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7$422 NZD
Retailer 3$456 NZD
Retailer 4$474 NZD
Retailer 9$495 NZD
Retailer 11$570 NZD
Retailer 5$579 NZD
Retailer 6$604 NZD
Retailer 12$656 NZD
Retailer 10$727 NZD
Retailer 2$855 NZD
Retailer 8$976 NZD
NZ Jewellers$1,918 NZD

22 data points across 12 retailers

13 retailers$422 NZD to $976 NZD

A
Cheapest Retailer
-
$422 NZD
$238 USD
A
Retailer 2
-
$456 NZD
$257 USD
View
A
Retailer 3
-
$474 NZD
$267 USD
View
A
Retailer 4
-
$495 NZD
SGD 377 SGD
View
A
Retailer 5
-
$497 NZD
$280 USD
View
A
Retailer 6
-
$570 NZD
$321 USD
View
B+
Retailer 7
-
$579 NZD
£257 GBP
View
B+
Retailer 8
-
$604 NZD
£268 GBP
View
B+
Retailer 9
-
$656 NZD
ZAR 5,976 ZAR
View
B+
Retailer 10
-
$727 NZD
€390 EUR
View
B
Retailer 11
-
$855 NZD
£380 GBP
View
B
Retailer 12
-
$976 NZD
£433 GBP
View
Most Expensive
NZ Jewellers
a8850675-3dc5-4c32-b64d-f4e27ab044a3 · Oct 30
$1,918 NZD
$1,081 USD
View
Price under review
12 more retailers have this diamond
Prices start from $422 NZDSave up to $553 NZD

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
0.30ct Radiant
$422 NZD