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Round|Natural|IGI

1.70ct M SI2 Round Natural Diamond

EX • M/SI2 • IGI 539240166

Shape and cutting style on the report: Round brilliant

Certificate IGI 539240166

Diamond specifications and retailer prices

From $777 USD
As of November 5, 2026
Save $2,020 USD (72%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,797 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 539240166. Listed at 8 retailers as of November 5, 2026, with prices from $777 to $2,797, a $2,020 spread on the same certified stone. NZ Jewellers lists it at $2,797. 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

1.70
Carat
M
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 539240166
Dimensions7.51 × 7.56 × 4.77 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.51 mm7.56 mm1.70 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 539240166
Side View
Table 58.0%Crown 36.3°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 63.3%

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 5
Current: $2,797 USD|Low: $777 USD|High: $2,797 USD|Avg: $1,358 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 2$777 USD
Retailer 4$1,098 USD
Retailer 7$1,147 USD
Retailer 9$1,147 USD
Retailer 6$1,191 USD
Retailer 10$1,227 USD
Retailer 11$1,280 USD
Retailer 8$1,323 USD
Retailer 3$1,364 USD
Retailer 5$1,540 USD
NZ Jewellers$2,797 USD

44 data points across 11 retailers

8 retailers$777 USD to $2,797 USD

A
Cheapest Retailer
-
$777 USD
B+
Retailer 2
-
$1,098 USD
View
Retailer 3
-
$1,147 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$1,147 USD
View
B+
Retailer 5
-
$1,191 USD
View
B+
Retailer 6
-
$1,280 USD
View
B+
Retailer 7
-
$1,323 USD
View
Most Expensive
B+
NZ Jewellers
651c7010-a8af-4a21-9def-7a2a13bc1f54 · Nov 5
$2,797 USD
View
7 more retailers have this diamond
Prices start from $777 USDSave up to $2,020 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
1.70ct Round
$777 USD