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Round|Natural|GIA

1.70ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2488555300

Certificate GIA 2488555300

Diamond specifications and retailer prices

From $2,935 USD
As of November 1, 2026
Save $3,561 USD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,496 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 2488555300. Listed at 10 retailers as of November 1, 2026, with prices from $2,935 to $6,496, a $3,561 spread on the same certified stone. NZ Jewellers lists it at $6,496. 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
SymmetryVery Good
FluorescenceStrong
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2488555300
Dimensions7.61 × 7.54 × 4.73 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.61 mm7.54 mm1.70 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2488555300
Side View
Table 58.0%Crown 36°Girdle: ThickPavilion 40.6°Culet: NoneDepth 62.5%

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 1
Current: $6,496 USD|Low: $2,935 USD|High: $6,496 USD|Avg: $3,795 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10$2,935 USD
Retailer 9$2,998 USD
Retailer 8$3,260 USD
Retailer 5$3,378 USD
Retailer 7$3,378 USD
Retailer 4$3,508 USD
Retailer 6$3,898 USD
Retailer 2$4,083 USD
Retailer 3$4,551 USD
NZ Jewellers$6,496 USD

26 data points across 10 retailers

10 retailers$2,935 USD to $6,496 USD

A
Cheapest Retailer
-
$2,935 USD
B+
Retailer 2
-
$2,998 USD
View
B+
Retailer 3
-
$3,260 USD
View
Retailer 4
-
$3,378 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$3,378 USD
View
B+
Retailer 6
-
$3,508 USD
View
B
Retailer 7
-
$3,898 USD
View
B
Retailer 8
-
$4,083 USD
View
B
Retailer 9
-
$4,551 USD
View
Most Expensive
C
NZ Jewellers
615cdd80-53c7-4ec5-aaeb-bed7f5a2e6cb · Nov 5
$6,496 USD
View
9 more retailers have this diamond
Prices start from $2,935 USDSave up to $3,561 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
$2,935 USD