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Oval|Natural|IGI

1.70ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 729536821

Shape and cutting style on the report: Oval brilliant

Certificate IGI 729536821

Diamond specifications and retailer prices

From $4,309 AUD
As of November 4, 2026
Save $4,148 AUD (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,927 AUD at NZ Jewellers · As of August 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 729536821. Listed at 17 retailers as of November 4, 2026, with a 96% 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
FluorescenceNone
Crown angle33.5°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 729536821
Dimensions9.41 × 6.99 × 4.13 mm
L/W Ratio1.35
Girdle conditionFaceted
Top View
9.41 mm6.99 mm1.70 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 729536821
Side View
Table 66.0%Crown 33.5°Girdle: MED-THKPavilion 40.3°CuletDepth 59.1%

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 4
Current: $8,457 AUD|Low: $4,309 AUD|High: $8,671 AUD|Avg: $5,544 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 3$4,309 AUD
Retailer 13$4,646 AUD
Retailer 12$4,694 AUD
Retailer 2$4,710 AUD
Retailer 6$4,854 AUD
Retailer 14$4,854 AUD
Retailer 11$5,042 AUD
Retailer 4$5,063 AUD
Retailer 7$5,114 AUD
Retailer 5$5,602 AUD
Retailer 10$5,682 AUD
Retailer 8$5,925 AUD
Retailer 9$8,117 AUD
NZ Jewellers$8,457 AUD

35 data points across 14 retailers

17 retailers$4,309 AUD to $8,457 AUD

B+
Cheapest Retailer
-
$4,309 AUD
B+
Retailer 2
-
$4,646 AUD
View
B+
Retailer 3
-
$4,694 AUD
View
A
Retailer 4
-
$4,710 AUD
View
A
Retailer 5
-
$4,854 AUD
View
Retailer 6
-
$4,854 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$5,042 AUD
View
B+
Retailer 8
-
$5,063 AUD
View
B+
Retailer 9
-
$5,114 AUD
View
Retailer 10
-
$5,124 AUD
View
Price last confirmed 53 days ago
B+
Retailer 11
-
$5,602 AUD
View
B+
Retailer 12
-
$5,682 AUD
View
Retailer 13
-
$5,912 AUD
View
Price last confirmed 66 days ago
B+
Retailer 14
-
$5,925 AUD
View
B
Retailer 15
-
$8,117 AUD
View
B
Retailer 16
-
$8,457 AUD
View
Most Expensive
NZ Jewellers
51cad5a3-b34c-4d60-a589-0ba23826ae19 · Aug 30
$8,927 AUD
$6,134 USD
View
Price last confirmed 68 days ago
16 more retailers have this diamond
Prices start from $4,309 AUDSave up to $4,148 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
$4,309 AUD