CaratHunter
Plans
Oval|Natural|GIA

1.00ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 2437621276

Certificate GIA 2437621276

Diamond specifications and retailer prices

From £1,565 GBP
As of November 6, 2026
Save £2,434 GBP (61%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,999 GBP at NZ Jewellers · As of November 5, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2437621276. Listed at 18 retailers as of November 5, 2026, with prices from £1,565 to £3,999, a £2,434 spread on the same certified stone. NZ Jewellers lists it at £3,999. 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2437621276
Dimensions8.15 × 5.41 × 3.38 mm
L/W Ratio1.51
Top View
8.15 mm5.41 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2437621276
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.5%

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 6
Current: £3,999 GBP|Low: £1,606 GBP|High: £3,999 GBP|Avg: £2,235 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6£1,606 GBP
Retailer 10£1,733 GBP
Retailer 4£1,796 GBP
Retailer 7£1,812 GBP
Retailer 8£1,813 GBP
Retailer 2£1,906 GBP
Retailer 9£1,999 GBP
Retailer 3£2,376 GBP
Retailer 5£3,343 GBP
NZ Jewellers£3,999 GBP

39 data points across 10 retailers

18 retailers£1,565 GBP to £3,999 GBP

B+
Cheapest Retailer
-
£1,565 GBP
B+
Retailer 2
-
£1,606 GBP
View
B
Retailer 3
-
£1,672 GBP
View
Retailer 4
-
£1,733 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£1,733 GBP
View
B
Retailer 6
-
£1,770 GBP
View
B
Retailer 7
-
£1,778 GBP
View
B+
Retailer 8
-
£1,796 GBP
View
B
Retailer 9
-
£1,812 GBP
View
B
Retailer 10
-
£1,813 GBP
View
B
Retailer 11
-
£1,906 GBP
View
B
Retailer 12
-
£1,913 GBP
View
B
Retailer 13
-
£1,913 GBP
View
B
Retailer 14
-
£1,980 GBP
View
B
Retailer 15
-
£1,999 GBP
View
B
Retailer 16
-
£2,376 GBP
View
B
Retailer 17
-
£3,343 GBP
View
Most Expensive
C
NZ Jewellers
4e2cce91-0ccf-457e-ba67-07088b2a64f5 · Nov 5
£3,999 GBP
$5,353 USD
View
17 more retailers have this diamond
Prices start from £1,565 GBPSave up to £2,434 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
£1,565 GBP