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Oval|Natural|GIA

1.51ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 2516806773

Certificate GIA 2516806773

Diamond specifications and retailer prices

From £2,886 GBP
$3,867 USD
As of November 1, 2026
Save £3,549 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,435 GBP at NZ Jewellers · As of October 30, 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 2516806773. Listed at 17 retailers as of October 30, 2026, with prices from £2,886 to £6,435, a £3,549 spread on the same certified stone. NZ Jewellers lists it at £6,435. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle41.73°
Pavilion angle40.02°
OriginNatural
Grading LabGIA
CertificateGIA 2516806773
Dimensions8.66 × 6.24 × 4.02 mm
L/W Ratio1.39
Top View
8.66 mm6.24 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2516806773
Side View
Table 58.0%Crown 41.73°Girdle: STK-VTKPavilion 40.02°Culet: NoneDepth 64.4%

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 1
Current: £6,435 GBP|Low: £2,673 GBP|High: £6,435 GBP|Avg: £3,924 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
November 1, 2026
Retailer 10£2,944 GBP
Retailer 12£2,989 GBP
Retailer 11£3,088 GBP
Retailer 3£3,346 GBP
Retailer 5£3,346 GBP
Retailer 13£3,346 GBP
Retailer 9£3,388 GBP
Retailer 6£3,673 GBP
Retailer 4£3,861 GBP
Retailer 8£4,078 GBP
Retailer 7£4,181 GBP
Retailer 2£5,883 GBP
NZ Jewellers£6,435 GBP

41 data points across 13 retailers

17 retailers£2,886 GBP to £6,435 GBP

A
Cheapest Retailer
-
£2,886 GBP
$3,867 USD
B+
Retailer 2
-
£2,944 GBP
$3,945 USD
View
Retailer 3
-
£2,989 GBP
$4,005 USD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
£3,088 GBP
$4,138 USD
View
Final sale: no returns
B+
Retailer 5
-
£3,346 GBP
$4,483 USD
View
B+
Retailer 6
-
£3,346 GBP
$4,483 USD
View
B+
Retailer 7
-
£3,346 GBP
$4,483 USD
View
B+
Retailer 8
-
£3,388 GBP
$4,539 USD
View
B+
Retailer 9
-
£3,670 GBP
$4,918 USD
View
B+
Retailer 10
-
£3,673 GBP
View
B+
Retailer 11
-
£3,687 GBP
$4,940 USD
View
B+
Retailer 12
-
£3,687 GBP
$4,940 USD
View
B
Retailer 13
-
£3,814 GBP
$5,110 USD
View
B
Retailer 14
-
£3,861 GBP
$5,173 USD
View
B
Retailer 15
-
£4,181 GBP
€5,335 EUR
View
B
Retailer 16
-
£5,883 GBP
View
Most Expensive
B
NZ Jewellers
81e1ca6d-241d-4404-9e81-4fb04f3e8600 · Oct 30
£6,435 GBP
$8,622 USD
View
16 more retailers have this diamond
Prices start from £2,886 GBPSave up to £3,549 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
£2,886 GBP