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Oval|Natural|GIA

1.21ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6555103303

Certificate GIA 6555103303

Diamond specifications and retailer prices

From £1,090 GBP
As of November 6, 2026
Save £1,420 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,629 GBP at NZ Jewellers · As of September 25, 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 6555103303. Listed at 13 retailers as of November 4, 2026, with a 130% 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
OriginNatural
Grading LabGIA
CertificateGIA 6555103303
Dimensions8.08 × 5.76 × 3.88 mm
L/W Ratio1.40
Top View
8.08 mm5.76 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555103303
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.3%

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: £1,413 GBP|Low: £1,071 GBP|High: £2,638 GBP|Avg: £1,561 GBP|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8£1,090 GBP
Retailer 11£1,201 GBP
Retailer 5£1,205 GBP
Retailer 3£1,268 GBP
Retailer 2£1,316 GBP
Retailer 7£1,397 GBP
Retailer 10£1,405 GBP
Retailer 1£1,413 GBP
Retailer 9£1,960 GBP
Retailer 6£2,188 GBP
Retailer 4£2,510 GBP

33 data points across 11 retailers

13 retailers£1,090 GBP to £2,510 GBP

A
Cheapest Retailer
-
£1,090 GBP
A
Retailer 2
-
£1,201 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,205 GBP
View
A
Retailer 4
-
£1,268 GBP
View
A
Retailer 5
-
£1,316 GBP
View
A
Retailer 6
-
£1,397 GBP
View
A
Retailer 7
-
£1,405 GBP
View
A
Retailer 8
-
£1,413 GBP
View
B+
Retailer 9
-
£1,529 GBP
View
B+
Retailer 10
-
£1,960 GBP
View
B
Retailer 11
-
£2,188 GBP
View
B
Retailer 12
-
£2,510 GBP
View
Most Expensive
NZ Jewellers
39aa2fed-2c4d-483c-89ae-04ac7efeb9f3 · Sep 25
£3,629 GBP
$4,858 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from £1,090 GBPSave up to £1,420 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
£1,090 GBP