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Round|Natural|IGI

1.21ct F IF Round Natural Diamond

EX • F/IF • IGI 802606130

Shape and cutting style on the report: Round brilliant

Certificate IGI 802606130

Diamond specifications and retailer prices

From £3,682 GBP
As of November 6, 2026
Save £4,361 GBP (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £8,043 GBP at NZ Jewellers · As of November 7, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 802606130. Listed at 16 retailers as of November 6, 2026, with prices from £3,682 to £8,043, a £4,361 spread on the same certified stone. NZ Jewellers lists it at £8,043. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 802606130
Dimensions6.75 × 6.80 × 4.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.75 mm6.80 mm1.21 ctF / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 802606130
Side View
Table 56.0%Crown 35.8°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A+
Exceptional
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 6
Current: £8,043 GBP|Low: £3,682 GBP|High: £8,043 GBP|Avg: £5,088 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
November 7, 2026
Retailer 8£3,682 GBP
Retailer 12£4,027 GBP
Retailer 15£4,194 GBP
Retailer 14£4,439 GBP
Retailer 5£4,468 GBP
Retailer 2£4,628 GBP
Retailer 4£4,808 GBP
Retailer 7£4,808 GBP
Retailer 13£4,808 GBP
Retailer 3£4,926 GBP
Retailer 10£5,213 GBP
Retailer 6£5,549 GBP
Retailer 9£5,867 GBP
Retailer 11£7,085 GBP
NZ Jewellers£8,043 GBP

34 data points across 15 retailers

16 retailers£3,682 GBP to £8,043 GBP

A+
Cheapest Retailer
-
£3,682 GBP
A
Retailer 2
-
£4,027 GBP
View
A
Retailer 3
-
£4,194 GBP
View
A
Retailer 4
-
£4,439 GBP
View
Final sale: no returns
A
Retailer 5
-
£4,468 GBP
View
A
Retailer 6
-
£4,628 GBP
View
A
Retailer 7
-
£4,808 GBP
View
Retailer 8
-
£4,808 GBP
View
Price last confirmed 9 days ago
A
Retailer 9
-
£4,808 GBP
View
A
Retailer 10
-
£4,926 GBP
View
A
Retailer 11
-
£5,213 GBP
View
B+
Retailer 12
-
£5,549 GBP
View
Retailer 13
-
£5,624 GBP
View
Price last confirmed 64 days ago
B+
Retailer 14
-
£5,867 GBP
View
B+
Retailer 15
-
£7,085 GBP
View
Most Expensive
B
NZ Jewellers
9057d792-6628-4e6b-a693-8b8c0665efd7 · Nov 7
£8,043 GBP
$10,765 USD
View
15 more retailers have this diamond
Prices start from £3,682 GBPSave up to £4,361 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
£3,682 GBP