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Round|Natural|GIA

1.70ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6445964287

Certificate GIA 6445964287

Diamond specifications and retailer prices

From $2,790 USD
As of November 6, 2026
Save $3,748 USD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,538 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6445964287. Listed at 11 retailers as of November 5, 2026, with prices from $2,790 to $6,538, a $3,748 spread on the same certified stone. NZ Jewellers lists it at $6,538. 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
FluorescenceNone
Crown angle32.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6445964287
Dimensions7.69 × 7.76 × 4.62 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.69 mm7.76 mm1.70 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6445964287
Side View
Table 61.0%Crown 32.5°Girdle: MED-NULPavilion 41°Culet: NoneDepth 59.8%

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: $6,538 USD|Low: $2,764 USD|High: $6,631 USD|Avg: $4,040 USD|-1.4%
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 6$2,790 USD
Retailer 3$3,340 USD
Retailer 4$3,423 USD
Retailer 8$3,595 USD
Retailer 7$3,753 USD
Retailer 10$3,753 USD
Retailer 12$3,897 USD
Retailer 9$3,899 USD
Retailer 11$4,330 USD
Retailer 2$4,359 USD
Retailer 5$4,581 USD
NZ Jewellers$6,538 USD

34 data points across 12 retailers

11 retailers$2,790 USD to $6,538 USD

A
Cheapest Retailer
-
$2,790 USD
B+
Retailer 2
-
$3,340 USD
View
B+
Retailer 3
-
$3,595 USD
View
B+
Retailer 4
-
$3,753 USD
View
Retailer 5
-
$3,753 USD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$3,897 USD
View
B+
Retailer 7
-
$3,899 USD
View
B
Retailer 8
-
$4,330 USD
View
B
Retailer 9
-
$4,359 USD
View
B
Retailer 10
-
$4,581 USD
View
Most Expensive
B
NZ Jewellers
91f6c9c7-1955-4b6e-bdc0-fe6fb80ad956 · Nov 5
$6,538 USD
View
10 more retailers have this diamond
Prices start from $2,790 USDSave up to $3,748 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
$2,790 USD