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Oval|Natural|GIA

1.70ct M SI2 Oval Natural Diamond

M/SI2 • GIA 2557937165

Certificate GIA 2557937165

Diamond specifications and retailer prices

From $4,436 AUD
As of November 5, 2026
Save $3,292 AUD (43%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,728 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.7ct natural oval diamond

This 1.7ct natural oval sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included) and certified by GIA 2557937165. Listed at 7 retailers as of November 5, 2026, with prices from $4,436 to $7,728, a $3,292 spread on the same certified stone. NZ Jewellers lists it at $7,728. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
M
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557937165
Dimensions9.07 × 6.56 × 4.19 mm
L/W Ratio1.38
Culet sizeNone
Top View
9.07 mm6.56 mm1.70 ctM / SI2
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557937165
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $7,728 AUD|Low: $3,618 AUD|High: $8,542 AUD|Avg: $5,002 AUD|-9.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$3,633 AUD
Retailer 4$4,436 AUD
Retailer 6$4,436 AUD
Retailer 2$4,536 AUD
Retailer 7$4,606 AUD
Retailer 5$5,119 AUD
Retailer 3$5,190 AUD
NZ Jewellers$7,728 AUD

29 data points across 8 retailers

7 retailers$4,436 AUD to $7,728 AUD

Retailer 1
-
$4,436 AUD
Price last confirmed 8 days ago
B+
Retailer 2
-
$4,436 AUD
View
B+
Retailer 3
-
$4,536 AUD
View
B+
Retailer 4
-
$4,606 AUD
View
B
Retailer 5
-
$5,119 AUD
View
B
Retailer 6
-
$5,190 AUD
View
Most Expensive
C
NZ Jewellers
0ed82e6c-ceda-4806-b961-116e4083b899 · Nov 5
$7,728 AUD
$5,310 USD
View
6 more retailers have this diamond
Prices start from $4,436 AUDSave up to $3,292 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.

B+
1.70ct Oval
$4,436 AUD