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Oval|Natural|GIA

1.70ct M SI2 Oval Natural Diamond

VG • M/SI2 • GIA 1558810257

Certificate GIA 1558810257

Diamond specifications and retailer prices

From £1,195 GBP
As of November 6, 2026
Save £2,161 GBP (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,356 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 stated by the retailer rather than the lab and certified by GIA 1558810257. Listed at 13 retailers as of November 5, 2026, with prices from £1,195 to £3,356, a £2,161 spread on the same certified stone. NZ Jewellers lists it at £3,356. 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558810257
Dimensions9.68 × 6.46 × 4.17 mm
L/W Ratio1.50
Top View
9.68 mm6.46 mm1.70 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558810257
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 64.5%

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: £3,356 GBP|Low: £1,195 GBP|High: £4,058 GBP|Avg: £1,969 GBP|-17.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8£1,195 GBP
Retailer 6£1,450 GBP
Retailer 3£1,588 GBP
Retailer 5£1,606 GBP
Retailer 2£1,641 GBP
Retailer 11£1,653 GBP
Retailer 7£1,680 GBP
Retailer 4£1,709 GBP
Retailer 9£1,852 GBP
Retailer 10£2,064 GBP
NZ Jewellers£3,356 GBP

37 data points across 11 retailers

13 retailers£1,195 GBP to £3,356 GBP

A
Cheapest Retailer
-
£1,195 GBP
B+
Retailer 2
-
£1,450 GBP
View
B+
Retailer 3
-
£1,588 GBP
View
B+
Retailer 4
-
£1,606 GBP
View
B+
Retailer 5
-
£1,641 GBP
View
Retailer 6
-
£1,653 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£1,680 GBP
View
B+
Retailer 8
-
£1,709 GBP
View
Retailer 9
-
£1,749 GBP
View
Price last confirmed 23 days ago
B+
Retailer 10
-
£1,852 GBP
View
Retailer 11
-
£2,018 GBP
View
Price last confirmed 23 days ago
B+
Retailer 12
-
£2,064 GBP
View
Most Expensive
B
NZ Jewellers
2810ebdb-8b5b-41b5-af06-db8b36c97986 · Nov 5
£3,356 GBP
$4,492 USD
View
12 more retailers have this diamond
Prices start from £1,195 GBPSave up to £2,161 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
£1,195 GBP