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Round|Natural|IGI

1.21ct K VS1 Round Natural Diamond

EX • K/VS1 • IGI 776673912

Shape and cutting style on the report: Round brilliant

Certificate IGI 776673912

Diamond specifications and retailer prices

From £1,172 GBP
As of November 5, 2026
Save £2,384 GBP (67%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,555 GBP at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct 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 776673912. Listed at 20 retailers as of November 5, 2026, with a 203% 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

1.21
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 776673912
Dimensions6.74 × 6.81 × 4.21 mm
L/W Ratio1.01
Girdle conditionPARTLY FACETED
Culet sizePointed
Top View
6.74 mm6.81 mm1.21 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 776673912
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.0%

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 5
Current: £1,356 GBP|Low: £1,172 GBP|High: £2,580 GBP|Avg: £1,684 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5£1,172 GBP
Retailer 1£1,356 GBP
Retailer 2£1,601 GBP
Retailer 4£1,684 GBP
Retailer 6£1,779 GBP
Retailer 3£1,974 GBP
Retailer 7£2,546 GBP

30 data points across 7 retailers

20 retailers£1,172 GBP to £3,555 GBP

A
Cheapest Retailer
-
£1,172 GBP
A
Retailer 2
-
£1,317 GBP
View
A
Retailer 3
-
£1,356 GBP
View
Retailer 4
-
£1,458 GBP
View
Price last confirmed 29 days ago
Retailer 5
-
£1,458 GBP
View
Price last confirmed 25 days ago
Retailer 6
-
£1,458 GBP
View
Price last confirmed 11 days ago
A
Retailer 7
-
£1,486 GBP
View
A
Retailer 8
-
£1,525 GBP
View
Retailer 9
-
£1,525 GBP
View
Price last confirmed 38 days ago
A
Retailer 10
-
£1,601 GBP
View
A
Retailer 11
-
£1,681 GBP
View
Retailer 12
-
£1,681 GBP
View
Price last confirmed 28 days ago
Retailer 13
-
£1,681 GBP
View
Price last confirmed 14 days ago
A
Retailer 14
-
£1,684 GBP
View
A
Retailer 15
-
£1,779 GBP
View
B+
Retailer 16
-
£1,974 GBP
View
B
Retailer 17
-
£2,546 GBP
View
Retailer 18
-
£3,555 GBP
View
Price last confirmed 40 days ago
B
Retailer 19
-
£3,555 GBP
View
Most Expensive
NZ Jewellers
b2acdd77-9fe8-4101-bfbd-4c84b8752c5a · Oct 23
£3,555 GBP
$4,785 USD
View
Price last confirmed 13 days ago
19 more retailers have this diamond
Prices start from £1,172 GBPSave up to £2,384 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
1.21ct Round
£1,172 GBP