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Oval|Natural|GIA

1.20ct J SI2 Oval Natural Diamond

ID • J/SI2 • GIA 7536004788

Certificate GIA 7536004788

Diamond specifications and retailer prices

From £1,157 GBP
As of November 6, 2026
Save £1,502 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,190 GBP at NZ Jewellers · As of October 17, 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 7536004788. Listed at 17 retailers as of November 2, 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

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

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7536004788
Dimensions8.16 × 5.95 × 3.71 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather, Cloud, Cavity, Indented Natural, Natural
Top View
8.16 mm5.95 mm1.20 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7536004788
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.3%

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: £1,215 GBP|Low: £1,157 GBP|High: £2,712 GBP|Avg: £1,649 GBP|-3.8%
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 9£1,157 GBP
Retailer 1£1,215 GBP
Retailer 2£1,400 GBP
Retailer 6£1,442 GBP
Retailer 4£1,615 GBP
Retailer 10£1,620 GBP
Retailer 5£1,648 GBP
Retailer 8£1,651 GBP
Retailer 3£1,761 GBP
Retailer 11£2,073 GBP
Retailer 7£2,659 GBP

39 data points across 11 retailers

17 retailers£1,157 GBP to £2,659 GBP

A
Cheapest Retailer
-
£1,157 GBP
A
Retailer 2
-
£1,215 GBP
View
A
Retailer 3
-
£1,400 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,442 GBP
View
B+
Retailer 5
-
£1,467 GBP
View
Retailer 6
-
£1,526 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£1,526 GBP
View
Price last confirmed 19 days ago
Retailer 8
-
£1,597 GBP
View
Price last confirmed 21 days ago
B+
Retailer 9
-
£1,615 GBP
View
B+
Retailer 10
-
£1,620 GBP
View
B+
Retailer 11
-
£1,620 GBP
View
B+
Retailer 12
-
£1,648 GBP
View
B+
Retailer 13
-
£1,651 GBP
View
Retailer 14
-
£1,761 GBP
View
Price last confirmed 19 days ago
B+
Retailer 15
-
£2,073 GBP
View
B
Retailer 16
-
£2,659 GBP
View
Most Expensive
NZ Jewellers
3ecea0f8-ec94-47df-a14b-59dcfd518a2a · Oct 17
£3,190 GBP
$4,270 USD
View
Price last confirmed 20 days ago
16 more retailers have this diamond
Prices start from £1,157 GBPSave up to £1,502 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
£1,157 GBP