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Round|Natural|IGI

1.60ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 756554651

Shape and cutting style on the report: Round brilliant

Certificate IGI 756554651

Diamond specifications and retailer prices

From $2,611 AUD
As of November 4, 2026
Save $3,433 AUD (57%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,044 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 756554651. Listed at 10 retailers as of November 4, 2026, with prices from $2,611 to $6,044, a $3,433 spread on the same certified stone. NZ Jewellers lists it at $6,044. 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
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 756554651
Dimensions7.43 × 7.47 × 4.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.43 mm7.47 mm1.60 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 756554651
Side View
Table 56.0%Crown 35.6°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.9%

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 4
Current: $6,044 AUD|Low: $2,611 AUD|High: $6,521 AUD|Avg: $3,360 AUD|-7.3%
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 5, 2026
Retailer 12$2,611 AUD
Retailer 10$2,714 AUD
Retailer 4$2,886 AUD
Retailer 8$2,891 AUD
Retailer 11$2,891 AUD
Retailer 3$2,896 AUD
Retailer 9$2,936 AUD
Retailer 6$3,024 AUD
Retailer 7$3,336 AUD
Retailer 5$3,528 AUD
Retailer 2$3,917 AUD
NZ Jewellers$6,044 AUD

28 data points across 12 retailers

10 retailers$2,611 AUD to $6,044 AUD

A
Cheapest Retailer
-
$2,611 AUD
A
Retailer 2
-
$2,714 AUD
View
A
Retailer 3
-
$2,891 AUD
View
Retailer 4
-
$2,891 AUD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$2,936 AUD
View
A
Retailer 6
-
$3,024 AUD
View
A
Retailer 7
-
$3,336 AUD
View
A
Retailer 8
-
$3,528 AUD
View
A
Retailer 9
-
$3,917 AUD
View
Most Expensive
B
NZ Jewellers
66e74e9a-0b43-4cd9-a154-921f1f855d47 · Nov 5
$6,044 AUD
$4,231 USD
View
9 more retailers have this diamond
Prices start from $2,611 AUDSave up to $3,433 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
$2,611 AUD