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Oval|Natural|IGI

1.70ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 598330491

Shape and cutting style on the report: Oval brilliant

Certificate IGI 598330491

Diamond specifications and retailer prices

From $3,694 AUD
As of November 6, 2026
Save $1,340 AUD (27%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,625 AUD at NZ Jewellers · As of September 30, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 598330491. Listed at 13 retailers as of November 5, 2026, with a 36% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.1°
Pavilion angle39.3°
OriginNatural
Grading LabIGI
CertificateIGI 598330491
Dimensions9.72 × 6.51 × 4.09 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Top View
9.72 mm6.51 mm1.70 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 598330491
Side View
Table 61.0%Crown 36.1°Girdle: STK-VTKPavilion 39.3°Culet: NoneDepth 62.8%

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: $4,002 AUD|Low: $3,733 AUD|High: $7,313 AUD|Avg: $4,893 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$3,733 AUD
Retailer 1$4,002 AUD
Retailer 2$4,445 AUD
Retailer 5$4,826 AUD
Retailer 3$5,034 AUD
Retailer 6$7,238 AUD

41 data points across 6 retailers

13 retailers$3,694 AUD to $5,034 AUD

A
Cheapest Retailer
-
$3,694 AUD
A
Retailer 2
-
$3,733 AUD
View
A
Retailer 3
-
$4,002 AUD
View
B+
Retailer 4
-
$4,046 AUD
View
Retailer 5
-
$4,126 AUD
View
Price last confirmed 29 days ago
Retailer 6
-
$4,126 AUD
View
Price last confirmed 29 days ago
Retailer 7
-
$4,285 AUD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
$4,445 AUD
View
Retailer 9
-
$4,761 AUD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$4,826 AUD
View
B+
Retailer 11
-
$5,034 AUD
View
Retailer 12
-
$7,238 AUD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
ef3445f7-f63c-4531-a139-242f5123fc18 · Sep 30
$8,625 AUD
$5,926 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from $3,694 AUDSave up to $1,340 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 Oval
$3,694 AUD