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Round|Natural|IGI

1.60ct M SI1 Round Natural Diamond

EX • M/SI1 • IGI 656470186

Shape and cutting style on the report: Round brilliant

Certificate IGI 656470186

Diamond specifications and retailer prices

From $1,470 AUD
As of November 5, 2026
Save $2,928 AUD (67%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,398 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 656470186. Listed at 11 retailers as of November 5, 2026, with prices from $1,470 to $4,398, a $2,928 spread on the same certified stone. NZ Jewellers lists it at $4,398. 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

1.60
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 656470186
Dimensions7.36 × 7.42 × 4.68 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.36 mm7.42 mm1.60 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 656470186
Side View
Table 56.0%Crown 36.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,398 AUD|Low: $1,470 AUD|High: $4,398 AUD|Avg: $2,133 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 4$1,470 AUD
Retailer 7$1,727 AUD
Retailer 3$1,803 AUD
Retailer 11$1,803 AUD
Retailer 8$1,873 AUD
Retailer 2$1,963 AUD
Retailer 6$1,971 AUD
Retailer 10$1,996 AUD
Retailer 9$2,081 AUD
Retailer 5$2,200 AUD
NZ Jewellers$4,398 AUD

45 data points across 11 retailers

11 retailers$1,470 AUD to $4,398 AUD

A
Cheapest Retailer
-
$1,470 AUD
A
Retailer 2
-
$1,727 AUD
View
Retailer 3
-
$1,803 AUD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,803 AUD
View
B+
Retailer 5
-
$1,873 AUD
View
A
Retailer 6
-
$1,963 AUD
View
B+
Retailer 7
-
$1,971 AUD
View
B+
Retailer 8
-
$1,996 AUD
View
B+
Retailer 9
-
$2,081 AUD
View
A
Retailer 10
-
$2,200 AUD
View
Most Expensive
B+
NZ Jewellers
0be6bda2-040f-4dc3-b8f5-ded136d4830f · Nov 5
$4,398 AUD
$3,079 USD
View
10 more retailers have this diamond
Prices start from $1,470 AUDSave up to $2,928 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
1.60ct Round
$1,470 AUD