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Oval|Natural|GIA

1.00ct J SI2 Oval Natural Diamond

GD • J/SI2 • GIA 2487530131

Certificate GIA 2487530131

Diamond specifications and retailer prices

From £1,489 GBP
As of October 31, 2026
Save £2,062 GBP (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,551 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2487530131. Listed at 18 retailers as of October 31, 2026, with prices from £1,489 to £3,551, a £2,062 spread on the same certified stone. NZ Jewellers lists it at £3,551. 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

1.00
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2487530131
Dimensions8.40 × 5.51 × 3.37 mm
L/W Ratio1.52
Top View
8.40 mm5.51 mm1.00 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2487530131
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £3,551 GBP|Low: £1,489 GBP|High: £3,551 GBP|Avg: £2,002 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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 3, 2026
Retailer 19£1,489 GBP
Retailer 18£1,534 GBP
Retailer 17£1,573 GBP
Retailer 6£1,582 GBP
Retailer 5£1,606 GBP
Retailer 11£1,663 GBP
Retailer 4£1,698 GBP
Retailer 14£1,698 GBP
Retailer 2£1,699 GBP
Retailer 12£1,777 GBP
Retailer 10£1,782 GBP
Retailer 9£1,796 GBP
Retailer 16£1,960 GBP
Retailer 7£2,035 GBP
Retailer 15£2,121 GBP
Retailer 3£2,465 GBP
Retailer 8£2,743 GBP
Retailer 13£2,975 GBP
NZ Jewellers£3,551 GBP

33 data points across 19 retailers

18 retailers£1,489 GBP to £3,551 GBP

B
Cheapest Retailer
-
£1,489 GBP
B
Retailer 2
-
£1,534 GBP
View
B
Retailer 3
-
£1,573 GBP
View
B
Retailer 4
-
£1,582 GBP
View
B
Retailer 5
-
£1,606 GBP
View
B
Retailer 6
-
£1,663 GBP
View
B
Retailer 7
-
£1,698 GBP
View
Retailer 8
-
£1,698 GBP
View
Price last confirmed 8 days ago
Retailer 9
-
£1,698 GBP
View
Price last confirmed 8 days ago
B
Retailer 10
-
£1,699 GBP
View
B
Retailer 11
-
£1,777 GBP
View
B
Retailer 12
-
£1,782 GBP
View
B
Retailer 13
-
£1,796 GBP
View
B
Retailer 14
-
£1,960 GBP
View
B
Retailer 15
-
£2,121 GBP
View
C
Retailer 16
-
£2,465 GBP
View
C
Retailer 17
-
£2,975 GBP
View
Most Expensive
C
NZ Jewellers
e952148e-8173-4c0a-b8d3-00a6620f2f34 · Nov 2
£3,551 GBP
$4,753 USD
View
17 more retailers have this diamond
Prices start from £1,489 GBPSave up to £2,062 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
1.00ct Oval
£1,489 GBP