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Oval|Natural|GIA

1.51ct M SI1 Oval Natural Diamond

GD • M/SI1 • GIA 7558341333

Certificate GIA 7558341333

Diamond specifications and retailer prices

From £1,524 GBP
As of November 4, 2026
Save £2,371 GBP (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,895 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7558341333. Listed at 10 retailers as of November 4, 2026, with prices from £1,524 to £3,895, a £2,371 spread on the same certified stone. NZ Jewellers lists it at £3,895. 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

1.51
Carat
M
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558341333
Dimensions9.66 × 6.01 × 3.78 mm
L/W Ratio1.61
Top View
9.66 mm6.01 mm1.51 ctM / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558341333
Side View
Table 61.0%CrownGirdle: Sli. Thick - Very ThickPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,895 GBP|Low: £1,186 GBP|High: £3,895 GBP|Avg: £1,895 GBP|+5.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 5£1,186 GBP
Retailer 13£1,341 GBP
Retailer 11£1,524 GBP
Retailer 4£1,573 GBP
Retailer 9£1,688 GBP
Retailer 10£1,692 GBP
Retailer 6£1,727 GBP
Retailer 12£1,765 GBP
Retailer 2£1,857 GBP
Retailer 7£1,948 GBP
Retailer 3£2,074 GBP
Retailer 8£2,273 GBP
NZ Jewellers£3,895 GBP

15 data points across 13 retailers

10 retailers£1,524 GBP to £3,895 GBP

Retailer 1
-
£1,341 GBP
Price last confirmed 16 days ago
B+
Retailer 2
-
£1,524 GBP
View
B+
Retailer 3
-
£1,688 GBP
View
B+
Retailer 4
-
£1,692 GBP
View
B+
Retailer 5
-
£1,727 GBP
View
B+
Retailer 6
-
£1,765 GBP
View
B+
Retailer 7
-
£1,857 GBP
View
B
Retailer 8
-
£1,948 GBP
View
B
Retailer 9
-
£2,273 GBP
View
Most Expensive
C
NZ Jewellers
672a6b5d-16f9-4b2e-9268-5805b7f8510b · Nov 5
£3,895 GBP
$5,213 USD
View
9 more retailers have this diamond
Prices start from £1,524 GBPSave up to £2,371 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+
1.51ct Oval
£1,524 GBP