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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 $1,029 USD
As of November 5, 2026
Save $2,050 USD (67%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,079 USD 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 $1,029 to $3,079, a $2,050 spread on the same certified stone. NZ Jewellers lists it at $3,079. 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
Color
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: $3,079 USD|Low: $1,029 USD|High: $3,079 USD|Avg: $1,493 USD
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$1,029 USD
Retailer 7$1,209 USD
Retailer 3$1,262 USD
Retailer 11$1,262 USD
Retailer 8$1,311 USD
Retailer 2$1,374 USD
Retailer 6$1,380 USD
Retailer 10$1,397 USD
Retailer 9$1,457 USD
Retailer 5$1,540 USD
NZ Jewellers$3,079 USD

45 data points across 11 retailers

11 retailers$1,029 USD to $3,079 USD

A
Cheapest Retailer
-
$1,029 USD
A
Retailer 2
-
$1,209 USD
View
Retailer 3
-
$1,262 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,262 USD
View
B+
Retailer 5
-
$1,311 USD
View
A
Retailer 6
-
$1,374 USD
View
B+
Retailer 7
-
$1,380 USD
View
B+
Retailer 8
-
$1,397 USD
View
B+
Retailer 9
-
$1,457 USD
View
A
Retailer 10
-
$1,540 USD
View
Most Expensive
B+
NZ Jewellers
0be6bda2-040f-4dc3-b8f5-ded136d4830f · Nov 5
$3,079 USD
View
10 more retailers have this diamond
Prices start from $1,029 USDSave up to $2,050 USD

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
$1,029 USD