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Round|Natural|GIA

1.21ct H VS1 Round Natural Diamond

EX • H/VS1 • GIA 6505000480

Certificate GIA 6505000480

Diamond specifications and retailer prices

From £2,615 GBP
As of November 4, 2026
Save £3,975 GBP (60%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £6,591 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 6505000480. Listed at 26 retailers as of November 4, 2026, with prices from £2,615 to £6,591, a £3,975 spread on the same certified stone. Diamond Quarter lists it at £6,591. 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 angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6505000480
Dimensions6.94 × 6.89 × 4.14 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.94 mm6.89 mm1.21 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505000480
Side View
Table 60.0%Crown 33.5°Girdle: MED-MEDPavilion 40.8°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
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 4
Current: £3,445 GBP|Low: £2,548 GBP|High: £5,676 GBP|Avg: £3,655 GBP|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£2,615 GBP
Retailer 5£2,636 GBP
Retailer 9£3,128 GBP
Retailer 10£3,251 GBP
Retailer 1£3,445 GBP
Retailer 2£3,550 GBP
Retailer 7£3,745 GBP
Retailer 4£3,920 GBP
Retailer 3£4,297 GBP
Retailer 6£5,594 GBP

38 data points across 10 retailers

26 retailers£2,615 GBP to £6,591 GBP

A
Cheapest Retailer
-
£2,615 GBP
A
Retailer 2
-
£2,636 GBP
View
A
Retailer 3
-
£2,915 GBP
View
B+
Retailer 4
-
£3,072 GBP
View
B+
Retailer 5
-
£3,093 GBP
View
B+
Retailer 6
-
£3,128 GBP
View
B+
Retailer 7
-
£3,251 GBP
View
Final sale: no returns
Retailer 8
-
£3,320 GBP
View
Price last confirmed 11 days ago
B+
Retailer 9
-
£3,325 GBP
View
B+
Retailer 10
-
£3,445 GBP
View
Retailer 11
-
£3,522 GBP
View
Price last confirmed 8 days ago
Retailer 12
-
£3,522 GBP
View
Price last confirmed 8 days ago
Retailer 13
-
£3,522 GBP
View
Price last confirmed 53 days ago
Retailer 14
-
£3,522 GBP
View
Price last confirmed 8 days ago
Retailer 15
-
£3,550 GBP
View
Price last confirmed 28 days ago
B+
Retailer 16
-
£3,633 GBP
View
B+
Retailer 17
-
£3,664 GBP
View
B+
Retailer 18
-
£3,745 GBP
View
B+
Retailer 19
-
£3,920 GBP
View
Retailer 20
-
£4,063 GBP
View
Price last confirmed 53 days ago
Retailer 21
-
£4,063 GBP
View
Price last confirmed 10 days ago
B+
Retailer 22
-
£4,297 GBP
View
B
Retailer 23
-
£5,594 GBP
View
Retailer 24
-
£6,136 GBP
View
Price last confirmed 10 days ago
Retailer 25
-
£6,136 GBP
View
Price last confirmed 52 days ago
Most Expensive
B
Diamond Quarter
1.21VS1H65808DB9N · Nov 5
£6,591 GBP
View
25 more retailers have this diamond
Prices start from £2,615 GBPSave up to £3,975 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
£2,615 GBP