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Round|Natural|GIA

1.00ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 5231719445

Certificate GIA 5231719445

Diamond specifications and retailer prices

From £1,782 GBP
As of November 4, 2026
Save £2,305 GBP (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £4,087 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 5231719445. Listed at 25 retailers as of November 2, 2026, with prices from £1,782 to £4,087, a £2,305 spread on the same certified stone. NZ Jewellers lists it at £4,087. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5231719445
Dimensions6.30 × 6.35 × 4.03 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Cloud, Indented Natural, Pinpoint
Top View
6.30 mm6.35 mm1.00 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231719445
Side View
Table 56.0%Crown 36.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 63.7%

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: £4,087 GBP|Low: £1,763 GBP|High: £4,095 GBP|Avg: £2,434 GBP|-0.2%
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
Retailer 21
Retailer 22
Retailer 23
November 4, 2026
Retailer 8£1,782 GBP
Retailer 15£1,851 GBP
Retailer 9£1,907 GBP
Retailer 3£1,936 GBP
Retailer 23£1,962 GBP
Retailer 22£1,966 GBP
Retailer 19£2,082 GBP
Retailer 5£2,126 GBP
Retailer 16£2,130 GBP
Retailer 11£2,133 GBP
Retailer 17£2,190 GBP
Retailer 18£2,207 GBP
Retailer 21£2,413 GBP
Retailer 12£2,422 GBP
Retailer 14£2,422 GBP
Retailer 20£2,453 GBP
Retailer 10£2,504 GBP
Retailer 6£2,577 GBP
Retailer 13£2,685 GBP
Retailer 4£2,782 GBP
Retailer 7£2,889 GBP
Retailer 2£3,913 GBP
NZ Jewellers£4,087 GBP

23 data points across 23 retailers

25 retailers£1,782 GBP to £4,087 GBP

A
Cheapest Retailer
-
£1,782 GBP
A
Retailer 2
-
£1,851 GBP
View
A
Retailer 3
-
£1,907 GBP
View
A
Retailer 4
-
£1,936 GBP
View
A
Retailer 5
-
£1,962 GBP
View
Final sale: no returns
A
Retailer 6
-
£1,966 GBP
View
A
Retailer 7
-
£2,082 GBP
View
A
Retailer 8
-
£2,126 GBP
View
A
Retailer 9
-
£2,130 GBP
View
A
Retailer 10
-
£2,133 GBP
View
A
Retailer 11
-
£2,190 GBP
View
A
Retailer 12
-
£2,207 GBP
View
A
Retailer 13
-
£2,413 GBP
View
B+
Retailer 14
-
£2,422 GBP
View
B+
Retailer 15
-
£2,422 GBP
View
B+
Retailer 16
-
£2,453 GBP
View
B+
Retailer 17
-
£2,504 GBP
View
B+
Retailer 18
-
£2,577 GBP
View
Retailer 19
-
£2,677 GBP
View
Price last confirmed 32 days ago
B+
Retailer 20
-
£2,685 GBP
View
Retailer 21
-
£2,740 GBP
View
Price last confirmed 13 days ago
B+
Retailer 22
-
£2,782 GBP
View
B+
Retailer 23
-
£2,889 GBP
View
B
Retailer 24
-
£3,913 GBP
View
Most Expensive
B
NZ Jewellers
3ad652a9-8922-4ace-953a-ffc859c8ce27 · Nov 2
£4,087 GBP
$5,518 USD
View
24 more retailers have this diamond
Prices start from £1,782 GBPSave up to £2,305 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
1.00ct Round
£1,782 GBP