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Round|Natural|IGI

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 670479108

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479108

Diamond specifications and retailer prices

From $6,725 AUD
As of November 7, 2026
Save $6,172 AUD (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,898 AUD at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670479108. Listed at 17 retailers as of November 7, 2026, with prices from $6,725 to $12,898, a $6,172 spread on the same certified stone. NZ Jewellers lists it at $12,898. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.53
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 670479108
Dimensions7.55 × 7.51 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.55 mm7.51 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670479108
Side View
Table 61.0%Crown 32.9°Girdle: MediumPavilion 41.1°Culet: NoneDepth 59.2%

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 7
Current: $8,188 AUD|Low: $6,755 AUD|High: $12,131 AUD|Avg: $8,525 AUD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$6,755 AUD
Retailer 10$7,118 AUD
Retailer 2$7,711 AUD
Retailer 8$7,718 AUD
Retailer 4$7,749 AUD
Retailer 1$8,188 AUD
Retailer 6$8,190 AUD
Retailer 5$8,204 AUD
Retailer 9$9,408 AUD
Retailer 7$11,923 AUD

39 data points across 10 retailers

17 retailers$6,725 AUD to $12,898 AUD

A
Cheapest Retailer
-
$6,725 AUD
A
Retailer 2
-
$6,755 AUD
View
A
Retailer 3
-
$7,118 AUD
View
Final sale: no returns
A
Retailer 4
-
$7,233 AUD
View
B+
Retailer 5
-
$7,711 AUD
View
B+
Retailer 6
-
$7,711 AUD
View
B+
Retailer 7
-
$7,711 AUD
View
A
Retailer 8
-
$7,718 AUD
View
A
Retailer 9
-
$7,749 AUD
View
B+
Retailer 10
-
$7,933 AUD
View
B+
Retailer 11
-
$8,188 AUD
View
B+
Retailer 12
-
$8,190 AUD
View
B+
Retailer 13
-
$8,204 AUD
View
B+
Retailer 14
-
$8,898 AUD
View
B+
Retailer 15
-
$9,408 AUD
View
B
Retailer 16
-
$11,923 AUD
View
Most Expensive
B
NZ Jewellers
8ae528ce-c06f-4288-b205-db8473f29dd4 · Nov 7
$12,898 AUD
$8,862 USD
View
16 more retailers have this diamond
Prices start from $6,725 AUDSave up to $6,172 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
1.53ct Round
$6,725 AUD