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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 $339 AUD
$238 USD
As of November 1, 2026
Save $444 AUD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,539 AUD 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: $1,539 AUD|Low: $339 AUD|High: $1,575 AUD|Avg: $590 AUD|-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 6$339 AUD
Retailer 3$366 AUD
Retailer 4$380 AUD
Retailer 9$397 AUD
Retailer 11$457 AUD
Retailer 2$465 AUD
Retailer 5$485 AUD
Retailer 12$527 AUD
Retailer 10$583 AUD
Retailer 7$686 AUD
Retailer 8$783 AUD
NZ Jewellers$1,539 AUD

22 data points across 12 retailers

13 retailers$339 AUD to $783 AUD

A
Cheapest Retailer
-
$339 AUD
$238 USD
A
Retailer 2
-
$366 AUD
$257 USD
View
A
Retailer 3
-
$380 AUD
$267 USD
View
A
Retailer 4
-
$397 AUD
SGD 377 SGD
View
A
Retailer 5
-
$399 AUD
$280 USD
View
A
Retailer 6
-
$457 AUD
$321 USD
View
B+
Retailer 7
-
$465 AUD
£257 GBP
View
B+
Retailer 8
-
$485 AUD
£268 GBP
View
B+
Retailer 9
-
$527 AUD
ZAR 5,976 ZAR
View
B+
Retailer 10
-
$583 AUD
€390 EUR
View
B
Retailer 11
-
$686 AUD
£380 GBP
View
B
Retailer 12
-
$783 AUD
£433 GBP
View
Most Expensive
NZ Jewellers
a8850675-3dc5-4c32-b64d-f4e27ab044a3 · Oct 30
$1,539 AUD
$1,081 USD
View
Price under review
12 more retailers have this diamond
Prices start from $339 AUDSave up to $444 AUD

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
$339 AUD