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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 HK$19,891 HKD
As of November 6, 2026
Save HK$7,218 HKD (27%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$46,444 HKD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$21,553 HKD|Low: HK$20,103 HKD|High: HK$39,383 HKD|Avg: HK$26,347 HKD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4HK$20,103 HKD
Retailer 1HK$21,553 HKD
Retailer 2HK$23,935 HKD
Retailer 5HK$25,989 HKD
Retailer 3HK$27,110 HKD
Retailer 6HK$38,975 HKD

41 data points across 6 retailers

13 retailersHK$19,891 HKD to HK$27,110 HKD

A
Cheapest Retailer
-
HK$19,891 HKD
A
Retailer 2
-
HK$20,103 HKD
View
A
Retailer 3
-
HK$21,553 HKD
View
B+
Retailer 4
-
HK$21,788 HKD
View
Retailer 5
-
HK$22,219 HKD
View
Price last confirmed 29 days ago
Retailer 6
-
HK$22,219 HKD
View
Price last confirmed 29 days ago
Retailer 7
-
HK$23,073 HKD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
HK$23,935 HKD
View
Retailer 9
-
HK$25,636 HKD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
HK$25,989 HKD
View
B+
Retailer 11
-
HK$27,110 HKD
View
Retailer 12
-
HK$38,975 HKD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
ef3445f7-f63c-4531-a139-242f5123fc18 · Sep 30
HK$46,444 HKD
$5,926 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from HK$19,891 HKDSave up to HK$7,218 HKD

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
HK$19,891 HKD