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Oval|Natural|GIA

1.20ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6471585558

Certificate GIA 6471585558

Diamond specifications and retailer prices

From £2,383 GBP
As of November 4, 2026
Save £3,320 GBP (58%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £5,703 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6471585558. Listed at 25 retailers as of November 4, 2026, with prices from £2,383 to £5,703, a £3,320 spread on the same certified stone. NZ Jewellers lists it at £5,703. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.66°
Pavilion angle35.48°
OriginNatural
Grading LabGIA
CertificateGIA 6471585558
Dimensions8.13 × 5.91 × 3.72 mm
L/W Ratio1.38
Top View
8.13 mm5.91 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6471585558
Side View
Table 56.0%Crown 38.66°Girdle: MED-THKPavilion 35.48°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,296 GBP|Low: £2,514 GBP|High: £5,276 GBP|Avg: £3,445 GBP|-0.7%
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
November 6, 2026
Retailer 7£2,514 GBP
Retailer 10£2,737 GBP
Retailer 2£2,965 GBP
Retailer 5£3,155 GBP
Retailer 13£3,231 GBP
Retailer 1£3,296 GBP
Retailer 4£3,347 GBP
Retailer 12£3,347 GBP
Retailer 3£3,363 GBP
Retailer 11£3,491 GBP
Retailer 8£3,703 GBP
Retailer 6£3,993 GBP
Retailer 9£5,213 GBP

43 data points across 13 retailers

25 retailers£2,383 GBP to £5,703 GBP

B+
Cheapest Retailer
-
£2,383 GBP
B+
Retailer 2
-
£2,474 GBP
View
B+
Retailer 3
-
£2,514 GBP
View
B+
Retailer 4
-
£2,579 GBP
View
B+
Retailer 5
-
£2,610 GBP
View
Retailer 6
-
£2,660 GBP
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£2,737 GBP
View
Final sale: no returns
B+
Retailer 8
-
£2,828 GBP
View
B
Retailer 9
-
£2,959 GBP
View
B
Retailer 10
-
£2,965 GBP
View
Retailer 11
-
£2,965 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
£2,965 GBP
View
B
Retailer 13
-
£3,155 GBP
View
B
Retailer 14
-
£3,296 GBP
View
B
Retailer 15
-
£3,347 GBP
View
B
Retailer 16
-
£3,347 GBP
View
B
Retailer 17
-
£3,363 GBP
View
B
Retailer 18
-
£3,422 GBP
View
B
Retailer 19
-
£3,447 GBP
View
B
Retailer 20
-
£3,459 GBP
View
Retailer 21
-
£3,491 GBP
View
Price last confirmed 28 days ago
B
Retailer 22
-
£3,703 GBP
View
B
Retailer 23
-
£3,993 GBP
View
B
Retailer 24
-
£5,213 GBP
View
Most Expensive
B
NZ Jewellers
cea4c828-6781-4416-aa86-39bf35e45881 · Nov 5
£5,703 GBP
$7,633 USD
View
24 more retailers have this diamond
Prices start from £2,383 GBPSave up to £3,320 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.

B+
1.20ct Oval
£2,383 GBP