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Radiant|Natural|IGI

1.00ct I SI1 Radiant Natural Diamond

VG • I/SI1 • IGI 766617727

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

Certificate IGI 766617727

Diamond specifications and retailer prices

From $1,616 AUD
$1,135 USD
As of November 1, 2026
Save $2,746 AUD (63%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,362 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 766617727. Listed at 16 retailers as of October 30, 2026, with prices from $1,616 to $4,362, a $2,746 spread on the same certified stone. NZ Jewellers lists it at $4,362. 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

1.00
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle34.2°
OriginNatural
Grading LabIGI
CertificateIGI 766617727
Dimensions6.74 × 4.95 × 3.43 mm
L/W Ratio1.36
Culet sizePointed
Top View
6.74 mm4.95 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 766617727
Side View
Table 66.0%Crown 44.1°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 69.3%

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: $4,362 AUD|Low: $1,616 AUD|High: $4,425 AUD|Avg: $2,229 AUD|-1.4%
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 2, 2026
Retailer 6$1,616 AUD
Retailer 4$1,657 AUD
Retailer 2$1,744 AUD
Retailer 3$1,788 AUD
Retailer 13$1,788 AUD
Retailer 10$1,794 AUD
Retailer 8$1,840 AUD
Retailer 14$1,858 AUD
Retailer 11$2,183 AUD
Retailer 12$2,208 AUD
Retailer 7$2,498 AUD
Retailer 5$2,621 AUD
Retailer 9$3,276 AUD
NZ Jewellers$4,362 AUD

20 data points across 14 retailers

16 retailers$1,616 AUD to $4,362 AUD

A
Cheapest Retailer
-
$1,616 AUD
$1,135 USD
A
Retailer 2
-
$1,657 AUD
SGD 1,573 SGD
View
A
Retailer 3
-
$1,740 AUD
$1,222 USD
View
Final sale: no returns
A
Retailer 4
-
$1,744 AUD
£965 GBP
View
A
Retailer 5
-
$1,788 AUD
$1,256 USD
View
A
Retailer 6
-
$1,788 AUD
$1,256 USD
View
A
Retailer 7
-
$1,794 AUD
$1,260 USD
View
A
Retailer 8
-
$1,840 AUD
£1,018 GBP
View
A
Retailer 9
-
$1,858 AUD
$1,305 USD
View
B+
Retailer 10
-
$1,997 AUD
View
A
Retailer 11
-
$2,183 AUD
ZAR 24,772 ZAR
View
B+
Retailer 12
-
$2,208 AUD
$1,551 USD
View
A
Retailer 13
-
$2,498 AUD
€1,671 EUR
View
B+
Retailer 14
-
$2,621 AUD
$1,841 USD
View
B+
Retailer 15
-
$3,276 AUD
£1,812 GBP
View
Most Expensive
B
NZ Jewellers
edf30b26-637b-4d43-b625-f57293cead79 · Oct 30
$4,362 AUD
$3,064 USD
View
15 more retailers have this diamond
Prices start from $1,616 AUDSave up to $2,746 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
1.00ct Radiant
$1,616 AUD