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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 $4,061 AUD
As of November 6, 2026
Save $5,455 AUD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,515 AUD 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 $4,061 to $9,515, a $5,455 spread on the same certified stone. NZ Jewellers lists it at $9,515. 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
Colour
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: $9,515 AUD|Low: $4,023 AUD|High: $9,651 AUD|Avg: $5,880 AUD|-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$4,061 AUD
Retailer 3$4,861 AUD
Retailer 4$4,982 AUD
Retailer 8$5,232 AUD
Retailer 7$5,462 AUD
Retailer 10$5,462 AUD
Retailer 12$5,672 AUD
Retailer 9$5,675 AUD
Retailer 11$6,302 AUD
Retailer 2$6,344 AUD
Retailer 5$6,667 AUD
NZ Jewellers$9,515 AUD

34 data points across 12 retailers

11 retailers$4,061 AUD to $9,515 AUD

A
Cheapest Retailer
-
$4,061 AUD
B+
Retailer 2
-
$4,861 AUD
View
B+
Retailer 3
-
$5,232 AUD
View
B+
Retailer 4
-
$5,462 AUD
View
Retailer 5
-
$5,462 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$5,672 AUD
View
B+
Retailer 7
-
$5,675 AUD
View
B
Retailer 8
-
$6,302 AUD
View
B
Retailer 9
-
$6,344 AUD
View
B
Retailer 10
-
$6,667 AUD
View
Most Expensive
B
NZ Jewellers
91f6c9c7-1955-4b6e-bdc0-fe6fb80ad956 · Nov 5
$9,515 AUD
$6,538 USD
View
10 more retailers have this diamond
Prices start from $4,061 AUDSave up to $5,455 AUD

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
$4,061 AUD