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Oval|Natural|GIA

1.21ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6525745455

Certificate GIA 6525745455

Diamond specifications and retailer prices

From £996 GBP
As of November 6, 2026
Save £2,264 GBP (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,260 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural oval diamond

This 1.21ct 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 6525745455. Listed at 13 retailers as of November 5, 2026, with prices from £996 to £3,260, a £2,264 spread on the same certified stone. NZ Jewellers lists it at £3,260. 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

1.21
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6525745455
Dimensions8.30 × 5.93 × 3.73 mm
L/W Ratio1.40
Top View
8.30 mm5.93 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6525745455
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,260 GBP|Low: £996 GBP|High: £3,302 GBP|Avg: £1,589 GBP|-1.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5£996 GBP
Retailer 2£1,218 GBP
Retailer 8£1,233 GBP
Retailer 9£1,337 GBP
Retailer 11£1,417 GBP
Retailer 4£1,458 GBP
Retailer 10£1,503 GBP
Retailer 7£1,542 GBP
Retailer 6£1,815 GBP
Retailer 3£2,432 GBP
NZ Jewellers£3,260 GBP

35 data points across 11 retailers

13 retailers£996 GBP to £3,260 GBP

A
Cheapest Retailer
-
£996 GBP
A
Retailer 2
-
£1,218 GBP
View
A
Retailer 3
-
£1,233 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,337 GBP
View
Retailer 5
-
£1,388 GBP
View
Price last confirmed 21 days ago
B+
Retailer 6
-
£1,408 GBP
View
B+
Retailer 7
-
£1,417 GBP
View
B+
Retailer 8
-
£1,458 GBP
View
B+
Retailer 9
-
£1,503 GBP
View
B+
Retailer 10
-
£1,542 GBP
View
B+
Retailer 11
-
£1,815 GBP
View
B
Retailer 12
-
£2,432 GBP
View
Most Expensive
B
NZ Jewellers
84352271-cd86-493c-a63c-6ddf0a0e9676 · Nov 5
£3,260 GBP
$4,364 USD
View
12 more retailers have this diamond
Prices start from £996 GBPSave up to £2,264 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
1.21ct Oval
£996 GBP