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Oval|Natural|GIA

1.42ct M SI1 Oval Natural Diamond

M/SI1 • GIA 5241015091

Certificate GIA 5241015091

Diamond specifications and retailer prices

From £2,058 GBP
As of November 5, 2026
Save £2,331 GBP (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,389 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.42ct natural oval diamond

This 1.42ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included) and certified by GIA 5241015091. Listed at 9 retailers as of November 5, 2026, with prices from £2,058 to £4,389, a £2,331 spread on the same certified stone. NZ Jewellers lists it at £4,389. 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

1.42
Carat
M
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241015091
Dimensions6.84 × 6.36 × 4.35 mm
L/W Ratio1.08
Key to symbols
Crystal, Feather, Needle
Top View
6.84 mm6.36 mm1.42 ctM / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5241015091
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCuletDepth 68.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,389 GBP|Low: £2,058 GBP|High: £4,389 GBP|Avg: £2,338 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£2,058 GBP
Retailer 2£2,064 GBP
Retailer 6£2,099 GBP
Retailer 8£2,099 GBP
Retailer 4£2,180 GBP
Retailer 7£2,423 GBP
Retailer 5£2,457 GBP
Retailer 3£2,563 GBP
NZ Jewellers£4,389 GBP

26 data points across 9 retailers

9 retailers£2,058 GBP to £4,389 GBP

B
Cheapest Retailer
-
£2,058 GBP
B
Retailer 2
-
£2,064 GBP
View
B
Retailer 3
-
£2,099 GBP
View
Retailer 4
-
£2,099 GBP
View
Price last confirmed 12 days ago
B
Retailer 5
-
£2,180 GBP
View
B
Retailer 6
-
£2,423 GBP
View
B
Retailer 7
-
£2,457 GBP
View
C
Retailer 8
-
£2,563 GBP
View
Most Expensive
C
NZ Jewellers
94961124-2840-4207-b102-434015ed3ac1 · Nov 5
£4,389 GBP
$5,875 USD
View
8 more retailers have this diamond
Prices start from £2,058 GBPSave up to £2,331 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.

B
1.42ct Oval
£2,058 GBP