Round|Natural|GIA

1.70ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2558109024

Certificate GIA 2558109024

Diamond specifications and retailer prices

From $4,158 CAD
As of November 6, 2026
Save $2,497 CAD (38%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,599 CAD at NZ Jewellers · As of October 17, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2558109024. Listed at 12 retailers as of November 5, 2026, with a 60% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2558109024
Dimensions7.62 × 7.55 × 4.72 mm
L/W Ratio1.01
Top View
7.62 mm7.55 mm1.70 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2558109024
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: Very SmallDepth 62.3%

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 6
Current: $4,358 CAD|Low: $4,123 CAD|High: $6,702 CAD|Avg: $5,318 CAD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$4,158 CAD
Retailer 1$4,358 CAD
Retailer 7$5,058 CAD
Retailer 5$5,211 CAD
Retailer 6$5,659 CAD
Retailer 3$6,123 CAD
Retailer 2$6,655 CAD

46 data points across 7 retailers

12 retailers$4,158 CAD to $6,655 CAD

A
Cheapest Retailer
-
$4,158 CAD
A
Retailer 2
-
$4,358 CAD
View
B+
Retailer 3
-
$5,058 CAD
View
B+
Retailer 4
-
$5,211 CAD
View
Retailer 5
-
$5,510 CAD
View
Price last confirmed 17 days ago
Retailer 6
-
$5,510 CAD
View
Price last confirmed 21 days ago
Retailer 7
-
$5,510 CAD
View
Price last confirmed 22 days ago
B
Retailer 8
-
$5,659 CAD
View
B
Retailer 9
-
$6,123 CAD
View
Retailer 10
-
$6,356 CAD
View
Price last confirmed 19 days ago
B
Retailer 11
-
$6,655 CAD
View
Most Expensive
NZ Jewellers
e669a4be-7710-40b6-97ff-06ad5b512486 · Oct 17
$9,599 CAD
$6,824 USD
View
Price last confirmed 20 days ago
11 more retailers have this diamond
Prices start from $4,158 CADSave up to $2,497 CAD

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
$4,158 CAD