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Oval|Natural|IGI

1.70ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 649462771

Shape and cutting style on the report: Oval brilliant

Certificate IGI 649462771

Diamond specifications and retailer prices

From £1,825 GBP
As of November 6, 2026
Save £8,119 GBP (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £9,945 GBP at MOH London · As of November 2, 2026
View at MOH London

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 649462771. Listed at 12 retailers as of November 2, 2026, with prices from £1,825 to £9,945, a £8,119 spread on the same certified stone. MOH London lists it at £9,945. 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 angle34.6°
Pavilion angle39.4°
OriginNatural
Grading LabIGI
CertificateIGI 649462771
Dimensions9.86 × 6.70 × 3.96 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizePointed
Top View
9.86 mm6.70 mm1.70 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 649462771
Side View
Table 59.0%Crown 34.6°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 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 6
Current: £9,945 GBP|Low: £1,825 GBP|High: £9,945 GBP|Avg: £3,502 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£1,825 GBP
Retailer 3£2,081 GBP
Retailer 4£2,600 GBP
Retailer 5£2,651 GBP
Retailer 7£2,866 GBP
Retailer 11£6,592 GBP
Retailer 9£6,963 GBP
Retailer 8£7,426 GBP
Retailer 10£7,615 GBP
Retailer 12£8,786 GBP
Retailer 6£9,290 GBP
MOH London£9,945 GBP

39 data points across 12 retailers

12 retailers£1,825 GBP to £9,945 GBP

A
Cheapest Retailer
-
£1,825 GBP
Retailer 2
-
£2,081 GBP
View
Price last confirmed 16 days ago
B+
Retailer 3
-
£2,600 GBP
View
B+
Retailer 4
-
£2,651 GBP
View
B+
Retailer 5
-
£2,866 GBP
View
C
Retailer 6
-
£6,592 GBP
View
C
Retailer 7
-
£6,963 GBP
View
C
Retailer 8
-
£7,426 GBP
View
C
Retailer 9
-
£7,615 GBP
View
C
Retailer 10
-
£8,786 GBP
View
C
Retailer 11
-
£9,290 GBP
View
Most Expensive
C
MOH London
C2D843C30 · Nov 2
£9,945 GBP
View
11 more retailers have this diamond
Prices start from £1,825 GBPSave up to £8,119 GBP

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
£1,825 GBP