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Round|Natural|GIA

1.21ct H VS1 Round Natural Diamond

EX • H/VS1 • GIA 5543960398

Certificate GIA 5543960398

Diamond specifications and retailer prices

From £3,258 GBP
As of November 4, 2026
Save £3,259 GBP (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £6,517 GBP at NZ Jewellers · As of November 2, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 5543960398. Listed at 19 retailers as of November 2, 2026, with prices from £3,258 to £6,517, a £3,259 spread on the same certified stone. NZ Jewellers lists it at £6,517. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5543960398
Dimensions6.73 × 6.77 × 4.28 mm
L/W Ratio1.01
Star length50%
Top View
6.73 mm6.77 mm1.21 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543960398
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £5,892 GBP|Low: £2,863 GBP|High: £6,517 GBP|Avg: £3,959 GBP|-3.5%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 5, 2026
Retailer 7£3,063 GBP
Retailer 16£3,063 GBP
Retailer 9£3,210 GBP
Retailer 5£3,258 GBP
Retailer 6£3,269 GBP
Retailer 17£3,366 GBP
Retailer 10£3,426 GBP
Retailer 4£3,495 GBP
Retailer 11£3,507 GBP
Retailer 3£3,535 GBP
Retailer 19£3,625 GBP
Retailer 2£3,864 GBP
Retailer 20£3,884 GBP
Retailer 15£4,190 GBP
Retailer 12£4,209 GBP
Retailer 14£4,251 GBP
Retailer 8£4,540 GBP
Retailer 18£5,696 GBP
NZ Jewellers£5,892 GBP
Retailer 13£6,190 GBP

36 data points across 20 retailers

19 retailers£3,258 GBP to £6,517 GBP

Retailer 1
-
£3,063 GBP
Price last confirmed 15 days ago
Retailer 2
-
£3,063 GBP
View
Price last confirmed 15 days ago
B+
Retailer 3
-
£3,258 GBP
View
Final sale: no returns
B+
Retailer 4
-
£3,269 GBP
View
B+
Retailer 5
-
£3,366 GBP
View
Retailer 6
-
£3,426 GBP
View
Price last confirmed 35 days ago
B+
Retailer 7
-
£3,495 GBP
View
Retailer 8
-
£3,535 GBP
View
Price last confirmed 14 days ago
B+
Retailer 9
-
£3,625 GBP
View
B+
Retailer 10
-
£3,864 GBP
View
B+
Retailer 11
-
£3,884 GBP
View
B+
Retailer 12
-
£4,190 GBP
View
Retailer 13
-
£4,209 GBP
View
Price last confirmed 37 days ago
B+
Retailer 14
-
£4,251 GBP
View
B
Retailer 15
-
£4,540 GBP
View
B
Retailer 16
-
£5,696 GBP
View
Retailer 17
-
£5,892 GBP
View
Price last confirmed 17 days ago
B
Retailer 18
-
£6,190 GBP
View
Most Expensive
B
NZ Jewellers
dd03969f-090d-4265-acf0-688ef8eb874a · Nov 2
£6,517 GBP
$8,771 USD
View
18 more retailers have this diamond
Prices start from £3,258 GBPSave up to £3,259 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.

B+
1.21ct Round
£3,258 GBP