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Round|Natural|GIA

1.05ct J VS1 Round Natural Diamond

EX • J/VS1 • GIA 1242094557

Certificate GIA 1242094557

Diamond specifications and retailer prices

From £1,255 GBP
As of November 6, 2026
Save £2,342 GBP (65%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,597 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 1242094557. Listed at 11 retailers as of November 5, 2026, with prices from £1,255 to £3,597, a £2,342 spread on the same certified stone. NZ Jewellers lists it at £3,597. 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
FluorescenceMedium
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1242094557
Dimensions6.45 × 6.49 × 4.04 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Needle
Top View
6.45 mm6.49 mm1.05 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1242094557
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.5%

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 6
Current: £3,597 GBP|Low: £1,255 GBP|High: £3,674 GBP|Avg: £2,082 GBP|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2£1,255 GBP
Retailer 10£1,569 GBP
Retailer 4£1,583 GBP
Retailer 9£1,721 GBP
Retailer 5£1,741 GBP
Retailer 8£1,800 GBP
Retailer 3£1,887 GBP
Retailer 7£2,105 GBP
Retailer 11£2,621 GBP
Retailer 6£3,006 GBP
NZ Jewellers£3,597 GBP

20 data points across 11 retailers

11 retailers£1,255 GBP to £3,597 GBP

A
Cheapest Retailer
-
£1,255 GBP
A
Retailer 2
-
£1,569 GBP
View
A
Retailer 3
-
£1,583 GBP
View
A
Retailer 4
-
£1,721 GBP
View
A
Retailer 5
-
£1,741 GBP
View
B+
Retailer 6
-
£1,800 GBP
View
B+
Retailer 7
-
£1,887 GBP
View
B+
Retailer 8
-
£2,105 GBP
View
B
Retailer 9
-
£2,621 GBP
View
B
Retailer 10
-
£3,006 GBP
View
Most Expensive
B
NZ Jewellers
73b21fbc-bea1-4f09-ba0b-cf69d49311d6 · Nov 5
£3,597 GBP
$4,841 USD
View
10 more retailers have this diamond
Prices start from £1,255 GBPSave up to £2,342 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
1.05ct Round
£1,255 GBP