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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 $1,314 SGD
As of November 5, 2026
Save $2,618 SGD (67%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,933 SGD 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 $1,314 to $3,933, a $2,618 spread on the same certified stone. NZ Jewellers lists it at $3,933. 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

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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: $3,933 SGD|Low: $1,314 SGD|High: $3,933 SGD|Avg: $1,907 SGD
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$1,314 SGD
Retailer 7$1,544 SGD
Retailer 3$1,612 SGD
Retailer 11$1,612 SGD
Retailer 8$1,675 SGD
Retailer 2$1,755 SGD
Retailer 6$1,763 SGD
Retailer 10$1,784 SGD
Retailer 9$1,861 SGD
Retailer 5$1,967 SGD
NZ Jewellers$3,933 SGD

45 data points across 11 retailers

11 retailers$1,314 SGD to $3,933 SGD

A
Cheapest Retailer
-
$1,314 SGD
A
Retailer 2
-
$1,544 SGD
View
Retailer 3
-
$1,612 SGD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,612 SGD
View
B+
Retailer 5
-
$1,675 SGD
View
A
Retailer 6
-
$1,755 SGD
View
B+
Retailer 7
-
$1,763 SGD
View
B+
Retailer 8
-
$1,784 SGD
View
B+
Retailer 9
-
$1,861 SGD
View
A
Retailer 10
-
$1,967 SGD
View
Most Expensive
B+
NZ Jewellers
0be6bda2-040f-4dc3-b8f5-ded136d4830f · Nov 5
$3,933 SGD
$3,079 USD
View
10 more retailers have this diamond
Prices start from $1,314 SGDSave up to $2,618 SGD

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
$1,314 SGD