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Oval|Natural|GIA

1.20ct F SI2 Oval Natural Diamond

ID • F/SI2 • GIA 6545221971

Certificate GIA 6545221971

Diamond specifications and retailer prices

From £1,634 GBP
HK$17,100 HKD
As of November 1, 2026
Save £2,717 GBP (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,490 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545221971. Listed at 18 retailers as of October 28, 2026, with a 166% 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
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545221971
Dimensions8.56 × 6.06 × 3.71 mm
L/W Ratio1.41
Top View
8.56 mm6.06 mm1.20 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545221971
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.2%

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 1
Current: £4,490 GBP|Low: £1,634 GBP|High: £4,490 GBP|Avg: £2,576 GBP
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 1, 2026
Retailer 12£1,634 GBP
Retailer 16£1,647 GBP
Retailer 2£1,717 GBP
Retailer 9£2,124 GBP
Retailer 3£2,148 GBP
Retailer 5£2,148 GBP
Retailer 15£2,230 GBP
Retailer 6£2,254 GBP
Retailer 7£2,272 GBP
Retailer 11£2,296 GBP
Retailer 8£2,343 GBP
Retailer 4£2,478 GBP
Retailer 13£2,514 GBP
Retailer 10£3,591 GBP
Retailer 14£4,351 GBP
NZ Jewellers£4,490 GBP

25 data points across 16 retailers

18 retailers£1,634 GBP to £4,351 GBP

A
Cheapest Retailer
-
£1,634 GBP
HK$17,100 HKD
A
Retailer 2
-
£1,647 GBP
SGD 2,982 SGD
View
A
Retailer 3
-
£1,717 GBP
₹219,076 INR
View
A
Retailer 4
-
£2,033 GBP
$2,724 USD
View
A
Retailer 5
-
£2,124 GBP
View
Retailer 6
-
£2,148 GBP
$2,878 USD
View
Price last confirmed 14 days ago
Retailer 7
-
£2,148 GBP
$2,878 USD
View
Price last confirmed 17 days ago
Retailer 8
-
£2,230 GBP
$2,988 USD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
£2,235 GBP
A$4,608 AUD
View
B+
Retailer 10
-
£2,254 GBP
$3,020 USD
View
B+
Retailer 11
-
£2,272 GBP
SGD 4,114 SGD
View
B+
Retailer 12
-
£2,296 GBP
View
B+
Retailer 13
-
£2,343 GBP
$3,140 USD
View
Retailer 14
-
£2,478 GBP
$3,320 USD
View
Price last confirmed 14 days ago
B+
Retailer 15
-
£2,514 GBP
€3,208 EUR
View
B
Retailer 16
-
£3,591 GBP
View
B
Retailer 17
-
£4,351 GBP
View
Most Expensive
NZ Jewellers
4727aa7b-ba50-4c33-b200-70c87e44815b · Oct 17
£4,490 GBP
$6,016 USD
View
Price last confirmed 15 days ago
17 more retailers have this diamond
Prices start from £1,634 GBPSave up to £2,717 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
£1,634 GBP