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Radiant|Natural|IGI

0.64ct H SI1 Radiant Natural Diamond

VG • H/SI1 • IGI 811673436

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

Certificate IGI 811673436

Diamond specifications and retailer prices

From $1,016 AUD
$712 USD
As of November 2, 2026
Save $2,439 AUD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,455 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.64ct natural radiant diamond

This 0.64ct natural radiant sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 811673436. Listed at 15 retailers as of October 27, 2026, with prices from $1,016 to $3,455, a $2,439 spread on the same certified stone. NZ Jewellers lists it at $3,455. 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

0.64
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.8°
Pavilion angle36.4°
OriginNatural
Grading LabIGI
CertificateIGI 811673436
Dimensions5.26 × 4.63 × 3.11 mm
L/W Ratio1.14
Top View
5.26 mm4.63 mm0.64 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 811673436
Side View
Table 75.0%Crown 38.8°Girdle: Slightly ThickPavilion 36.4°CuletDepth 67.2%

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 2
Current: $3,455 AUD|Low: $932 AUD|High: $3,455 AUD|Avg: $1,505 AUD
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 3, 2026
Retailer 10$1,016 AUD
Retailer 3$1,102 AUD
Retailer 12$1,102 AUD
Retailer 7$1,106 AUD
Retailer 11$1,144 AUD
Retailer 4$1,271 AUD
Retailer 8$1,344 AUD
Retailer 2$1,364 AUD
Retailer 6$1,429 AUD
Retailer 9$1,641 AUD
Retailer 5$2,017 AUD
NZ Jewellers$3,455 AUD

45 data points across 12 retailers

15 retailers$1,016 AUD to $3,455 AUD

B+
Cheapest Retailer
-
$1,016 AUD
$712 USD
Final sale: no returns
Retailer 2
-
$1,102 AUD
$772 USD
View
Price last confirmed 49 days ago
B+
Retailer 3
-
$1,102 AUD
$772 USD
View
B+
Retailer 4
-
$1,102 AUD
$772 USD
View
A
Retailer 5
-
$1,106 AUD
$775 USD
View
B+
Retailer 6
-
$1,117 AUD
$783 USD
View
B+
Retailer 7
-
$1,144 AUD
$802 USD
View
B+
Retailer 8
-
$1,271 AUD
$891 USD
View
B+
Retailer 9
-
$1,291 AUD
$905 USD
View
B+
Retailer 10
-
$1,344 AUD
£742 GBP
View
B+
Retailer 11
-
$1,364 AUD
£753 GBP
View
B+
Retailer 12
-
$1,429 AUD
€954 EUR
View
Retailer 13
-
$1,641 AUD
ZAR 18,578 ZAR
View
Price last confirmed 7 days ago
B
Retailer 14
-
$2,017 AUD
£1,113 GBP
View
Most Expensive
C
NZ Jewellers
089cfd85-9d03-441a-a734-b5d62f2e8a9d · Oct 27
$3,455 AUD
$2,421 USD
View
14 more retailers have this diamond
Prices start from $1,016 AUDSave up to $2,439 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
0.64ct Radiant
$1,016 AUD