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Oval|Natural|GIA

1.20ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 2556103294

Certificate GIA 2556103294

Diamond specifications and retailer prices

From £1,071 GBP
As of November 6, 2026
Save £1,478 GBP (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,246 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct 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 2556103294. Listed at 16 retailers as of November 4, 2026, with a 138% 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

1.20
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556103294
Dimensions8.09 × 5.88 × 3.85 mm
L/W Ratio1.38
Top View
8.09 mm5.88 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556103294
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.6%

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: £1,492 GBP|Low: £1,071 GBP|High: £2,753 GBP|Avg: £1,687 GBP
Retailer 1
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
November 6, 2026
Retailer 11£1,071 GBP
Retailer 2£1,309 GBP
Retailer 3£1,345 GBP
Retailer 12£1,346 GBP
Retailer 13£1,369 GBP
Retailer 4£1,377 GBP
Retailer 9£1,436 GBP
Retailer 1£1,492 GBP
Retailer 5£1,532 GBP
Retailer 15£1,544 GBP
Retailer 7£1,587 GBP
Retailer 8£1,981 GBP
Retailer 14£2,219 GBP
Retailer 6£2,503 GBP
Retailer 10£2,548 GBP

27 data points across 15 retailers

16 retailers£1,071 GBP to £2,548 GBP

A
Cheapest Retailer
-
£1,071 GBP
Retailer 2
-
£1,309 GBP
View
Price last confirmed 9 days ago
Retailer 3
-
£1,345 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£1,346 GBP
View
Final sale: no returns
A
Retailer 5
-
£1,369 GBP
View
Retailer 6
-
£1,377 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£1,436 GBP
View
B+
Retailer 8
-
£1,492 GBP
View
Retailer 9
-
£1,532 GBP
View
Price last confirmed 7 days ago
B+
Retailer 10
-
£1,544 GBP
View
B+
Retailer 11
-
£1,587 GBP
View
B
Retailer 12
-
£1,981 GBP
View
B
Retailer 13
-
£2,219 GBP
View
B
Retailer 14
-
£2,503 GBP
View
B
Retailer 15
-
£2,548 GBP
View
Most Expensive
NZ Jewellers
4b887916-6d59-449f-aa51-15949d3beb67 · Sep 25
£3,246 GBP
$4,345 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from £1,071 GBPSave up to £1,478 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
1.20ct Oval
£1,071 GBP