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Oval|Natural|GIA

1.20ct K SI2 Oval Natural Diamond

ID • K/SI2 • GIA 6542591442

Certificate GIA 6542591442

Diamond specifications and retailer prices

From £973 GBP
As of November 5, 2026
Save £1,399 GBP (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,372 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542591442. Listed at 11 retailers as of November 5, 2026, with prices from £973 to £2,372, a £1,399 spread on the same certified stone. NZ Jewellers lists it at £2,372. 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
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle37.1°
Pavilion angle37.9°
OriginNatural
Grading LabGIA
CertificateGIA 6542591442
Dimensions8.20 × 5.86 × 3.74 mm
L/W Ratio1.40
Top View
8.20 mm5.86 mm1.20 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6542591442
Side View
Table 62.0%Crown 37.1°Girdle: THK-VTKPavilion 37.9°Culet: NoneDepth 63.8%

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 5
Current: £994 GBP|Low: £994 GBP|High: £1,803 GBP|Avg: £1,230 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1£994 GBP
Retailer 5£1,018 GBP
Retailer 6£1,089 GBP
Retailer 2£1,100 GBP
Retailer 4£1,357 GBP
Retailer 3£1,777 GBP

44 data points across 6 retailers

11 retailers£973 GBP to £2,372 GBP

A
Cheapest Retailer
-
£973 GBP
Retailer 2
-
£973 GBP
View
Price last confirmed 8 days ago
A
Retailer 3
-
£994 GBP
View
A
Retailer 4
-
£1,018 GBP
View
A
Retailer 5
-
£1,073 GBP
View
A
Retailer 6
-
£1,089 GBP
View
A
Retailer 7
-
£1,100 GBP
View
A
Retailer 8
-
£1,122 GBP
View
B+
Retailer 9
-
£1,357 GBP
View
B+
Retailer 10
-
£1,777 GBP
View
Most Expensive
B
NZ Jewellers
a8ea30a5-4399-4ff7-a0bc-13766b5aca26 · Nov 5
£2,372 GBP
$3,175 USD
View
10 more retailers have this diamond
Prices start from £973 GBPSave up to £1,399 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
£973 GBP