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Oval|Natural|GIA

1.20ct I SI2 Oval Natural Diamond

ID • I/SI2 • GIA 2536777851

Certificate GIA 2536777851

Diamond specifications and retailer prices

From £1,272 GBP
As of November 6, 2026
Save £2,202 GBP (63%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,473 GBP at NZ Jewellers · As of November 5, 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 I 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 2536777851. Listed at 18 retailers as of November 5, 2026, with prices from £1,272 to £3,473, a £2,202 spread on the same certified stone. NZ Jewellers lists it at £3,473. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536777851
Dimensions8.11 × 5.89 × 3.74 mm
L/W Ratio1.38
Top View
8.11 mm5.89 mm1.20 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536777851
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.5%

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: £3,473 GBP|Low: £1,272 GBP|High: £3,529 GBP|Avg: £1,980 GBP|-1.6%
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
November 6, 2026
Retailer 6£1,272 GBP
Retailer 2£1,331 GBP
Retailer 15£1,501 GBP
Retailer 13£1,533 GBP
Retailer 9£1,633 GBP
Retailer 16£1,662 GBP
Retailer 8£1,688 GBP
Retailer 5£1,756 GBP
Retailer 10£1,765 GBP
Retailer 11£1,770 GBP
Retailer 14£1,793 GBP
Retailer 3£1,824 GBP
Retailer 12£1,917 GBP
Retailer 7£2,096 GBP
Retailer 4£2,933 GBP
NZ Jewellers£3,473 GBP

23 data points across 16 retailers

18 retailers£1,272 GBP to £3,473 GBP

A
Cheapest Retailer
-
£1,272 GBP
A
Retailer 2
-
£1,331 GBP
View
A
Retailer 3
-
£1,501 GBP
View
A
Retailer 4
-
£1,533 GBP
View
Final sale: no returns
A
Retailer 5
-
£1,608 GBP
View
A
Retailer 6
-
£1,633 GBP
View
A
Retailer 7
-
£1,662 GBP
View
Retailer 8
-
£1,688 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£1,756 GBP
View
A
Retailer 10
-
£1,765 GBP
View
A
Retailer 11
-
£1,770 GBP
View
A
Retailer 12
-
£1,793 GBP
View
A
Retailer 13
-
£1,801 GBP
View
A
Retailer 14
-
£1,824 GBP
View
A
Retailer 15
-
£1,917 GBP
View
B+
Retailer 16
-
£2,096 GBP
View
B
Retailer 17
-
£2,933 GBP
View
Most Expensive
B
NZ Jewellers
241da45f-b975-47ef-b702-1b4efd851331 · Nov 5
£3,473 GBP
$4,649 USD
View
17 more retailers have this diamond
Prices start from £1,272 GBPSave up to £2,202 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
£1,272 GBP