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Oval|Natural|GIA

1.51ct L SI1 Oval Natural Diamond

VG • L/SI1 • GIA 6542757755

Certificate GIA 6542757755

Diamond specifications and retailer prices

From £1,536 GBP
As of November 4, 2026
Save £2,387 GBP (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,923 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542757755. Listed at 12 retailers as of November 4, 2026, with prices from £1,536 to £3,923, a £2,387 spread on the same certified stone. NZ Jewellers lists it at £3,923. 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
L
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542757755
Dimensions9.37 × 6.35 × 3.91 mm
L/W Ratio1.48
Top View
9.37 mm6.35 mm1.51 ctL / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542757755
Side View
Table 60.0%CrownGirdle: Very ThickPavilionCulet: NDepth 61.6%

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: £3,923 GBP|Low: £1,281 GBP|High: £3,923 GBP|Avg: £1,817 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
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 6£1,281 GBP
Retailer 4£1,453 GBP
Retailer 14£1,536 GBP
Retailer 15£1,624 GBP
Retailer 5£1,678 GBP
Retailer 12£1,700 GBP
Retailer 13£1,703 GBP
Retailer 8£1,739 GBP
Retailer 3£1,779 GBP
Retailer 2£1,845 GBP
Retailer 10£1,962 GBP
Retailer 9£1,986 GBP
Retailer 7£2,291 GBP
Retailer 11£2,291 GBP
NZ Jewellers£3,923 GBP

10 data points across 15 retailers

12 retailers£1,536 GBP to £3,923 GBP

Retailer 1
-
£1,453 GBP
Price last confirmed 16 days ago
B+
Retailer 2
-
£1,536 GBP
View
B+
Retailer 3
-
£1,624 GBP
View
B+
Retailer 4
-
£1,700 GBP
View
B+
Retailer 5
-
£1,703 GBP
View
B+
Retailer 6
-
£1,739 GBP
View
B+
Retailer 7
-
£1,779 GBP
View
B+
Retailer 8
-
£1,845 GBP
View
B+
Retailer 9
-
£1,962 GBP
View
B+
Retailer 10
-
£1,986 GBP
View
B
Retailer 11
-
£2,291 GBP
View
Most Expensive
C
NZ Jewellers
7410f38d-fa3c-402b-af9d-3e1970421e21 · Nov 5
£3,923 GBP
$5,251 USD
View
11 more retailers have this diamond
Prices start from £1,536 GBPSave up to £2,387 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
£1,536 GBP