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Oval|Natural|IGI

1.70ct M SI2 Oval Natural Diamond

VG • M/SI2 • IGI 743558578

Shape and cutting style on the report: Oval brilliant

Certificate IGI 743558578

Diamond specifications and retailer prices

From £1,380 GBP
As of November 6, 2026
Save £3,279 GBP (70%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,659 GBP at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 743558578. Listed at 13 retailers as of November 5, 2026, with prices from £1,380 to £4,659, a £3,279 spread on the same certified stone. NZ Jewellers lists it at £4,659. 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
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle32.7°
OriginNatural
Grading LabIGI
CertificateIGI 743558578
Dimensions10.22 × 6.50 × 3.81 mm
L/W Ratio1.57
Girdle conditionFaceted
Top View
10.22 mm6.50 mm1.70 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 743558578
Side View
Table 59.0%Crown 35.6°Girdle: STK-THKPavilion 32.7°Culet: NoneDepth 58.6%

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: £4,659 GBP|Low: £1,380 GBP|High: £4,659 GBP|Avg: £2,277 GBP
NZ Jewellers
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£1,380 GBP
Retailer 6£1,550 GBP
Retailer 8£1,759 GBP
Retailer 9£2,055 GBP
Retailer 4£2,057 GBP
Retailer 7£2,183 GBP
Retailer 10£2,229 GBP
Retailer 12£2,229 GBP
Retailer 5£2,279 GBP
Retailer 11£2,315 GBP
Retailer 3£2,572 GBP
NZ Jewellers£4,659 GBP

31 data points across 12 retailers

13 retailers£1,380 GBP to £4,659 GBP

A
Cheapest Retailer
-
£1,380 GBP
B+
Retailer 2
-
£1,550 GBP
View
B+
Retailer 3
-
£1,759 GBP
View
B+
Retailer 4
-
£2,055 GBP
View
B+
Retailer 5
-
£2,057 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,183 GBP
View
Retailer 7
-
£2,229 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£2,229 GBP
View
B+
Retailer 9
-
£2,279 GBP
View
B
Retailer 10
-
£2,315 GBP
View
B
Retailer 11
-
£2,335 GBP
View
B
Retailer 12
-
£2,572 GBP
View
Most Expensive
C
NZ Jewellers
71105089-3269-459f-87a3-bc7d69727d8e · Nov 5
£4,659 GBP
$6,236 USD
View
12 more retailers have this diamond
Prices start from £1,380 GBPSave up to £3,279 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
£1,380 GBP