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Round|Natural|IGI

1.20ct K VS1 Round Natural Diamond

EX • K/VS1 • IGI 670479737

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479737

Diamond specifications and retailer prices

From £1,296 GBP
As of November 4, 2026
Save £1,190 GBP (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,602 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 670479737. Listed at 17 retailers as of November 4, 2026, with a 92% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 670479737
Dimensions6.73 × 6.79 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.73 mm6.79 mm1.20 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670479737
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,323 GBP|Low: £1,296 GBP|High: £2,618 GBP|Avg: £1,669 GBP|-5.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8£1,296 GBP
Retailer 10£1,304 GBP
Retailer 1£1,323 GBP
Retailer 11£1,366 GBP
Retailer 3£1,477 GBP
Retailer 2£1,545 GBP
Retailer 4£1,562 GBP
Retailer 5£1,646 GBP
Retailer 7£1,736 GBP
Retailer 6£1,927 GBP
Retailer 9£2,485 GBP

31 data points across 11 retailers

17 retailers£1,296 GBP to £2,485 GBP

A
Cheapest Retailer
-
£1,296 GBP
A
Retailer 2
-
£1,304 GBP
View
A
Retailer 3
-
£1,323 GBP
View
A
Retailer 4
-
£1,366 GBP
View
Retailer 5
-
£1,441 GBP
View
Price last confirmed 44 days ago
Retailer 6
-
£1,477 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£1,477 GBP
View
Price last confirmed 19 days ago
Retailer 8
-
£1,545 GBP
View
Price last confirmed 22 days ago
A
Retailer 9
-
£1,562 GBP
View
A
Retailer 10
-
£1,646 GBP
View
Retailer 11
-
£1,662 GBP
View
Price last confirmed 45 days ago
Retailer 12
-
£1,704 GBP
View
Price last confirmed 19 days ago
A
Retailer 13
-
£1,736 GBP
View
B+
Retailer 14
-
£1,927 GBP
View
B
Retailer 15
-
£2,485 GBP
View
Retailer 16
-
£3,514 GBP
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
15b0280f-d1b5-4f16-b7ea-45eb24be4c80 · Oct 17
£3,602 GBP
$4,848 USD
View
Price last confirmed 20 days ago
16 more retailers have this diamond
Prices start from £1,296 GBPSave up to £1,190 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
£1,296 GBP