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Oval|Natural|GIA

1.21ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 7516028956

Certificate GIA 7516028956

Diamond specifications and retailer prices

From £1,430 GBP
As of November 6, 2026
Save £2,400 GBP (63%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,330 GBP at NZ Jewellers · As of October 20, 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 7516028956. Listed at 21 retailers as of November 5, 2026, with a 168% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.22°
Pavilion angle38.92°
OriginNatural
Grading LabGIA
CertificateGIA 7516028956
Dimensions8.27 × 5.99 × 3.68 mm
L/W Ratio1.38
Culet sizeNone
Top View
8.27 mm5.99 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7516028956
Side View
Table 58.0%Crown 39.22°Girdle: STK-THKPavilion 38.92°Culet: NoneDepth 61.5%

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: £3,830 GBP|Low: £1,430 GBP|High: £4,330 GBP|Avg: £2,181 GBP|-11.5%
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
Retailer 20
November 6, 2026
Retailer 19£1,430 GBP
Retailer 9£1,499 GBP
Retailer 17£1,528 GBP
Retailer 6£1,532 GBP
Retailer 5£1,626 GBP
Retailer 18£1,659 GBP
Retailer 15£1,736 GBP
Retailer 2£1,825 GBP
Retailer 11£1,876 GBP
Retailer 3£1,880 GBP
Retailer 4£1,915 GBP
Retailer 13£1,938 GBP
Retailer 7£1,987 GBP
Retailer 8£1,987 GBP
Retailer 10£2,047 GBP
Retailer 20£2,073 GBP
Retailer 16£2,287 GBP
Retailer 12£2,464 GBP
Retailer 14£3,201 GBP
NZ Jewellers£3,830 GBP

29 data points across 20 retailers

21 retailers£1,430 GBP to £3,830 GBP

A
Cheapest Retailer
-
£1,430 GBP
B+
Retailer 2
-
£1,499 GBP
View
A
Retailer 3
-
£1,528 GBP
View
B+
Retailer 4
-
£1,532 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,626 GBP
View
B+
Retailer 6
-
£1,659 GBP
View
B+
Retailer 7
-
£1,736 GBP
View
B+
Retailer 8
-
£1,825 GBP
View
Retailer 9
-
£1,876 GBP
View
Price last confirmed 21 days ago
Retailer 10
-
£1,876 GBP
View
Price last confirmed 17 days ago
B+
Retailer 11
-
£1,880 GBP
View
B+
Retailer 12
-
£1,915 GBP
View
B+
Retailer 13
-
£1,938 GBP
View
B
Retailer 14
-
£1,987 GBP
View
B
Retailer 15
-
£1,987 GBP
View
B+
Retailer 16
-
£2,047 GBP
View
B+
Retailer 17
-
£2,073 GBP
View
B
Retailer 18
-
£2,287 GBP
View
B
Retailer 19
-
£3,201 GBP
View
B
Retailer 20
-
£3,830 GBP
View
Most Expensive
NZ Jewellers
d90b65d8-ae2f-4a25-882c-3802e312094c · Oct 20
£4,330 GBP
$5,795 USD
View
Price last confirmed 16 days ago
20 more retailers have this diamond
Prices start from £1,430 GBPSave up to £2,400 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
£1,430 GBP