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Oval|Natural|GIA

1.51ct L SI1 Oval Natural Diamond

GD • L/SI1 • GIA 2556134775

Certificate GIA 2556134775

Diamond specifications and retailer prices

From £1,071 GBP
As of November 6, 2026
Save £2,442 GBP (70%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,513 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2556134775. Listed at 15 retailers as of November 5, 2026, with prices from £1,071 to £3,513, a £2,442 spread on the same certified stone. NZ Jewellers lists it at £3,513. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556134775
Dimensions8.74 × 6.34 × 4.14 mm
L/W Ratio1.38
Top View
8.74 mm6.34 mm1.51 ctL / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556134775
Side View
Table 58.0%CrownGirdle: Very ThickPavilionCulet: NDepth 65.2%

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: £3,513 GBP|Low: £1,071 GBP|High: £3,646 GBP|Avg: £1,745 GBP|-3.6%
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 15£1,071 GBP
Retailer 13£1,301 GBP
Retailer 2£1,416 GBP
Retailer 11£1,440 GBP
Retailer 7£1,450 GBP
Retailer 12£1,472 GBP
Retailer 5£1,495 GBP
Retailer 14£1,507 GBP
Retailer 8£1,543 GBP
Retailer 9£1,564 GBP
Retailer 3£1,662 GBP
Retailer 10£1,758 GBP
Retailer 4£2,040 GBP
Retailer 6£2,126 GBP
NZ Jewellers£3,513 GBP

29 data points across 15 retailers

15 retailers£1,071 GBP to £3,513 GBP

A
Cheapest Retailer
-
£1,071 GBP
B+
Retailer 2
-
£1,301 GBP
View
B+
Retailer 3
-
£1,416 GBP
View
B+
Retailer 4
-
£1,440 GBP
View
B+
Retailer 5
-
£1,450 GBP
View
B+
Retailer 6
-
£1,472 GBP
View
Retailer 7
-
£1,495 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£1,507 GBP
View
B+
Retailer 9
-
£1,543 GBP
View
B+
Retailer 10
-
£1,564 GBP
View
B+
Retailer 11
-
£1,662 GBP
View
B+
Retailer 12
-
£1,758 GBP
View
B+
Retailer 13
-
£2,040 GBP
View
B
Retailer 14
-
£2,126 GBP
View
Most Expensive
C
NZ Jewellers
4fb2f7a1-b6d1-45ed-ac9b-061454852b9d · Nov 5
£3,513 GBP
$4,702 USD
View
14 more retailers have this diamond
Prices start from £1,071 GBPSave up to £2,442 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
1.51ct Oval
£1,071 GBP