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Round|Natural|GIA

1.20ct F SI2 Round Natural Diamond

VG • F/SI2 • GIA 6422965646

Certificate GIA 6422965646

Diamond specifications and retailer prices

From £1,949 GBP
HK$20,400 HKD
As of October 31, 2026
Save £4,307 GBP (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,256 GBP at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6422965646. Listed at 17 retailers as of October 31, 2026, with prices from £1,949 to £6,256, a £4,307 spread on the same certified stone. Diamond Quarter lists it at £6,256. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6422965646
Dimensions6.70 × 6.61 × 4.29 mm
L/W Ratio1.01
Top View
6.70 mm6.61 mm1.20 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6422965646
Side View
Table 59.0%Crown 35°Girdle: MED-THKPavilion 41.8°Culet: NoneDepth 64.4%

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: Oct 31
Current: £4,378 GBP|Low: £1,930 GBP|High: £5,013 GBP|Avg: £2,873 GBP|-9.1%
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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 10£1,949 GBP
Retailer 12£2,060 GBP
Retailer 16£2,189 GBP
Retailer 2£2,247 GBP
Retailer 7£2,372 GBP
Retailer 15£2,372 GBP
Retailer 13£2,463 GBP
Retailer 4£2,694 GBP
Retailer 14£2,694 GBP
Retailer 9£2,697 GBP
Retailer 8£2,736 GBP
Retailer 5£2,784 GBP
Retailer 11£2,789 GBP
Retailer 3£2,965 GBP
Retailer 1£4,378 GBP
Retailer 6£4,561 GBP

39 data points across 16 retailers

17 retailers£1,949 GBP to £6,256 GBP

A
Cheapest Retailer
-
£1,949 GBP
HK$20,400 HKD
Retailer 2
-
£2,060 GBP
$2,760 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
£2,189 GBP
$2,933 USD
View
Final sale: no returns
B+
Retailer 4
-
£2,247 GBP
$3,011 USD
View
B+
Retailer 5
-
£2,372 GBP
$3,178 USD
View
B+
Retailer 6
-
£2,372 GBP
$3,178 USD
View
B+
Retailer 7
-
£2,463 GBP
$3,300 USD
View
B+
Retailer 8
-
£2,694 GBP
$3,610 USD
View
B+
Retailer 9
-
£2,694 GBP
$3,610 USD
View
B+
Retailer 10
-
£2,697 GBP
View
B+
Retailer 11
-
£2,736 GBP
$3,666 USD
View
B+
Retailer 12
-
£2,784 GBP
$3,730 USD
View
B+
Retailer 13
-
£2,789 GBP
€3,559 EUR
View
Retailer 14
-
£2,965 GBP
$3,973 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
£4,378 GBP
View
B
Retailer 16
-
£4,561 GBP
$6,111 USD
View
Most Expensive
B
Diamond Quarter
1.2SI2F6446271CN · Oct 31
£6,256 GBP
View
16 more retailers have this diamond
Prices start from £1,949 GBPSave up to £4,307 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 Round
£1,949 GBP