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 $2,961 USD
As of November 4, 2026
Save $2,850 USD (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,134 USD 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
Color
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: $5,811 USD|Low: $2,961 USD|High: $5,958 USD|Avg: $3,809 USD
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$2,961 USD
Retailer 13$3,192 USD
Retailer 12$3,225 USD
Retailer 2$3,236 USD
Retailer 6$3,335 USD
Retailer 14$3,335 USD
Retailer 11$3,464 USD
Retailer 4$3,479 USD
Retailer 7$3,514 USD
Retailer 5$3,849 USD
Retailer 10$3,904 USD
Retailer 8$4,071 USD
Retailer 9$5,577 USD
NZ Jewellers$5,811 USD

35 data points across 14 retailers

17 retailers$2,961 USD to $5,811 USD

B+
Cheapest Retailer
-
$2,961 USD
B+
Retailer 2
-
$3,192 USD
View
B+
Retailer 3
-
$3,225 USD
View
A
Retailer 4
-
$3,236 USD
View
A
Retailer 5
-
$3,335 USD
View
Retailer 6
-
$3,335 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,464 USD
View
B+
Retailer 8
-
$3,479 USD
View
B+
Retailer 9
-
$3,514 USD
View
Retailer 10
-
$3,521 USD
View
Price last confirmed 53 days ago
B+
Retailer 11
-
$3,849 USD
View
B+
Retailer 12
-
$3,904 USD
View
Retailer 13
-
$4,062 USD
View
Price last confirmed 66 days ago
B+
Retailer 14
-
$4,071 USD
View
B
Retailer 15
-
$5,577 USD
View
B
Retailer 16
-
$5,811 USD
View
Most Expensive
NZ Jewellers
51cad5a3-b34c-4d60-a589-0ba23826ae19 · Aug 30
$6,134 USD
View
Price last confirmed 68 days ago
16 more retailers have this diamond
Prices start from $2,961 USDSave up to $2,850 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 Oval
$2,961 USD