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Round|Natural|GIA

1.05ct J VS1 Round Natural Diamond

EX • J/VS1 • GIA 1559450154

Certificate GIA 1559450154

Diamond specifications and retailer prices

From £1,886 GBP
As of November 4, 2026
Save £2,164 GBP (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,049 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1559450154. Listed at 20 retailers as of November 4, 2026, with prices from £1,886 to £4,049, a £2,164 spread on the same certified stone. NZ Jewellers lists it at £4,049. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1559450154
Dimensions6.59 × 6.61 × 3.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud
Top View
6.59 mm6.61 mm1.05 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559450154
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.5%

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: £4,049 GBP|Low: £1,943 GBP|High: £4,049 GBP|Avg: £2,770 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£1,943 GBP
Retailer 2£2,162 GBP
Retailer 3£2,375 GBP
Retailer 10£2,388 GBP
Retailer 9£2,482 GBP
Retailer 4£2,679 GBP
Retailer 6£2,700 GBP
Retailer 5£2,837 GBP
Retailer 7£3,876 GBP
NZ Jewellers£4,049 GBP

36 data points across 10 retailers

20 retailers£1,886 GBP to £4,049 GBP

B+
Cheapest Retailer
-
£1,886 GBP
B+
Retailer 2
-
£1,943 GBP
View
Final sale: no returns
B+
Retailer 3
-
£2,066 GBP
View
Retailer 4
-
£2,106 GBP
View
Price last confirmed 53 days ago
Retailer 5
-
£2,106 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£2,106 GBP
View
B+
Retailer 7
-
£2,129 GBP
View
B+
Retailer 8
-
£2,162 GBP
View
B+
Retailer 9
-
£2,375 GBP
View
B+
Retailer 10
-
£2,388 GBP
View
Retailer 11
-
£2,430 GBP
View
Price last confirmed 53 days ago
Retailer 12
-
£2,482 GBP
View
Price last confirmed 30 days ago
B
Retailer 13
-
£2,604 GBP
View
B
Retailer 14
-
£2,679 GBP
View
Retailer 15
-
£2,697 GBP
View
Price last confirmed 14 days ago
B
Retailer 16
-
£2,700 GBP
View
B
Retailer 17
-
£2,837 GBP
View
B
Retailer 18
-
£3,876 GBP
View
Retailer 19
-
£4,049 GBP
View
Price last confirmed 55 days ago
Most Expensive
B
NZ Jewellers
acec5e75-d24d-4ae9-b482-4a7f05aaadb2 · Nov 5
£4,049 GBP
$5,450 USD
View
19 more retailers have this diamond
Prices start from £1,886 GBPSave up to £2,164 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+
1.05ct Round
£1,886 GBP