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Oval|Natural|GIA

1.51ct J SI2 Oval Natural Diamond

ID • J/SI2 • GIA 2544212731

Certificate GIA 2544212731

Diamond specifications and retailer prices

From £1,913 GBP
As of November 6, 2026
Save £2,267 GBP (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,460 GBP at NZ Jewellers · As of October 17, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2544212731. Listed at 15 retailers as of November 4, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2544212731
Dimensions8.59 × 6.31 × 4.10 mm
L/W Ratio1.36
Top View
8.59 mm6.31 mm1.51 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2544212731
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.9%

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: £4,460 GBP|Low: £1,893 GBP|High: £4,460 GBP|Avg: £2,792 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
November 6, 2026
Retailer 10£1,913 GBP
Retailer 7£1,980 GBP
Retailer 2£2,025 GBP
Retailer 3£2,560 GBP
Retailer 6£2,593 GBP
Retailer 11£2,613 GBP
Retailer 5£2,654 GBP
Retailer 12£2,682 GBP
Retailer 9£2,934 GBP
Retailer 4£2,954 GBP
Retailer 8£4,179 GBP
NZ Jewellers£4,460 GBP

33 data points across 12 retailers

15 retailers£1,913 GBP to £4,179 GBP

A
Cheapest Retailer
-
£1,913 GBP
A
Retailer 2
-
£1,980 GBP
View
A
Retailer 3
-
£2,025 GBP
View
A
Retailer 4
-
£2,410 GBP
View
Retailer 5
-
£2,560 GBP
View
Price last confirmed 19 days ago
Retailer 6
-
£2,560 GBP
View
Price last confirmed 21 days ago
A
Retailer 7
-
£2,593 GBP
View
A
Retailer 8
-
£2,613 GBP
View
A
Retailer 9
-
£2,654 GBP
View
Retailer 10
-
£2,659 GBP
View
Price last confirmed 21 days ago
A
Retailer 11
-
£2,682 GBP
View
B+
Retailer 12
-
£2,934 GBP
View
Retailer 13
-
£2,954 GBP
View
Price last confirmed 19 days ago
B
Retailer 14
-
£4,179 GBP
View
Most Expensive
NZ Jewellers
374c2654-cdd2-4b97-973e-10558a656939 · Oct 17
£4,460 GBP
$5,970 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from £1,913 GBPSave up to £2,267 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
£1,913 GBP