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Oval|Natural|GIA

1.20ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 2554052294

Certificate GIA 2554052294

Diamond specifications and retailer prices

From £1,329 GBP
As of November 6, 2026
Save £1,735 GBP (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,064 GBP at MOH London · As of November 4, 2026
View at MOH London

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 2554052294. Listed at 19 retailers as of November 4, 2026, with prices from £1,329 to £3,064, a £1,735 spread on the same certified stone. MOH London lists it at £3,064. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554052294
Dimensions8.36 × 5.99 × 3.74 mm
L/W Ratio1.40
Top View
8.36 mm5.99 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554052294
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.4%

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: £3,064 GBP|Low: £661 GBP|High: £3,166 GBP|Avg: £1,809 GBP|-3.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4£661 GBP
Retailer 11£1,329 GBP
Retailer 2£1,385 GBP
Retailer 13£1,618 GBP
Retailer 5£1,671 GBP
Retailer 6£1,747 GBP
Retailer 3£1,770 GBP
Retailer 7£1,850 GBP
Retailer 12£1,857 GBP
Retailer 9£1,905 GBP
Retailer 10£1,965 GBP
Retailer 8£2,177 GBP
MOH London£3,064 GBP

25 data points across 13 retailers

19 retailers£1,329 GBP to £3,064 GBP

Retailer 1
-
£661 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
£1,329 GBP
View
A
Retailer 3
-
£1,385 GBP
View
B+
Retailer 4
-
£1,618 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,671 GBP
View
B+
Retailer 6
-
£1,685 GBP
View
B+
Retailer 7
-
£1,742 GBP
View
B+
Retailer 8
-
£1,747 GBP
View
Retailer 9
-
£1,770 GBP
View
Price last confirmed 8 days ago
Retailer 10
-
£1,788 GBP
View
Price last confirmed 25 days ago
Retailer 11
-
£1,796 GBP
View
Price last confirmed 38 days ago
B
Retailer 12
-
£1,850 GBP
View
B+
Retailer 13
-
£1,857 GBP
View
Retailer 14
-
£1,879 GBP
View
Price last confirmed 38 days ago
B
Retailer 15
-
£1,905 GBP
View
B
Retailer 16
-
£1,965 GBP
View
Retailer 17
-
£2,072 GBP
View
Price last confirmed 38 days ago
B
Retailer 18
-
£2,177 GBP
View
Most Expensive
B
MOH London
2095932FC · Nov 4
£3,064 GBP
View
18 more retailers have this diamond
Prices start from £1,329 GBPSave up to £1,735 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
£1,329 GBP