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Round|Natural|IGI

1.20ct K IF Round Natural Diamond

EX • K/IF • IGI 620410458

Shape and cutting style on the report: Round brilliant

Certificate IGI 620410458

Diamond specifications and retailer prices

From £1,684 GBP
As of November 4, 2026
Save £2,214 GBP (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,898 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 620410458. Listed at 14 retailers as of November 4, 2026, with a 131% 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 620410458
Dimensions6.78 × 6.82 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.78 mm6.82 mm1.20 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 620410458
Side View
Table 59.0%Crown 34.4°Girdle: Med.Pavilion 41.7°Culet: NoneDepth 62.1%

Caratlytics Score

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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: £1,996 GBP|Low: £1,685 GBP|High: £3,305 GBP|Avg: £2,257 GBP|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7£1,685 GBP
Retailer 6£1,864 GBP
Retailer 1£1,996 GBP
Retailer 2£2,187 GBP
Retailer 3£2,275 GBP
Retailer 4£2,313 GBP
Retailer 5£3,266 GBP

33 data points across 7 retailers

14 retailers£1,684 GBP to £3,898 GBP

A
Cheapest Retailer
-
£1,684 GBP
A
Retailer 2
-
£1,685 GBP
View
Retailer 3
-
£1,864 GBP
View
Price last confirmed 8 days ago
Retailer 4
-
£1,864 GBP
View
Price last confirmed 19 days ago
Retailer 5
-
£1,951 GBP
View
Price last confirmed 22 days ago
A
Retailer 6
-
£1,969 GBP
View
A
Retailer 7
-
£1,996 GBP
View
Retailer 8
-
£2,151 GBP
View
Price last confirmed 19 days ago
A
Retailer 9
-
£2,187 GBP
View
A
Retailer 10
-
£2,275 GBP
View
A
Retailer 11
-
£2,313 GBP
View
B
Retailer 12
-
£3,266 GBP
View
B
Retailer 13
-
£3,898 GBP
View
Most Expensive
NZ Jewellers
d5e69871-7bc0-4757-b9ef-e1e4119172bb · Oct 17
£3,898 GBP
$5,217 USD
View
Price last confirmed 20 days ago
13 more retailers have this diamond
Prices start from £1,684 GBPSave up to £2,214 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
£1,684 GBP