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Round|Natural|GIA

1.00ct J VS1 Round Natural Diamond

VG • J/VS1 • GIA 7566439579

Certificate GIA 7566439579

Diamond specifications and retailer prices

From £1,132 GBP
As of November 4, 2026
Save £2,013 GBP (64%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,144 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by GIA 7566439579. Listed at 20 retailers as of November 4, 2026, with prices from £1,132 to £3,144, a £2,013 spread on the same certified stone. NZ Jewellers lists it at £3,144. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle36°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7566439579
Dimensions6.29 × 6.22 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.29 mm6.22 mm1.00 ctJ / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 7566439579
Side View
Table 60.0%Crown 36°Girdle: THN-THKPavilion 41.6°Culet: NDepth 64.1%

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: £3,144 GBP|Low: £1,132 GBP|High: £3,216 GBP|Avg: £1,675 GBP|-2.2%
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
November 6, 2026
Retailer 8£1,132 GBP
Retailer 16£1,135 GBP
Retailer 7£1,298 GBP
Retailer 9£1,334 GBP
Retailer 11£1,358 GBP
Retailer 17£1,360 GBP
Retailer 19£1,372 GBP
Retailer 6£1,388 GBP
Retailer 2£1,399 GBP
Retailer 10£1,504 GBP
Retailer 12£1,563 GBP
Retailer 13£1,567 GBP
Retailer 4£1,574 GBP
Retailer 18£1,640 GBP
Retailer 5£1,736 GBP
Retailer 15£1,736 GBP
Retailer 14£1,930 GBP
Retailer 3£2,178 GBP
Retailer 20£2,627 GBP
NZ Jewellers£3,144 GBP

20 data points across 20 retailers

20 retailers£1,132 GBP to £3,144 GBP

A
Cheapest Retailer
-
£1,132 GBP
A
Retailer 2
-
£1,135 GBP
View
A
Retailer 3
-
£1,298 GBP
View
A
Retailer 4
-
£1,334 GBP
View
A
Retailer 5
-
£1,358 GBP
View
A
Retailer 6
-
£1,360 GBP
View
A
Retailer 7
-
£1,372 GBP
View
B+
Retailer 8
-
£1,388 GBP
View
Final sale: no returns
A
Retailer 9
-
£1,399 GBP
View
A
Retailer 10
-
£1,504 GBP
View
B+
Retailer 11
-
£1,563 GBP
View
B+
Retailer 12
-
£1,567 GBP
View
B+
Retailer 13
-
£1,574 GBP
View
B+
Retailer 14
-
£1,640 GBP
View
B+
Retailer 15
-
£1,736 GBP
View
B+
Retailer 16
-
£1,736 GBP
View
B+
Retailer 17
-
£1,930 GBP
View
B
Retailer 18
-
£2,178 GBP
View
B
Retailer 19
-
£2,627 GBP
View
Most Expensive
B
NZ Jewellers
eb83822e-2d03-435e-a033-308e9c585d88 · Nov 5
£3,144 GBP
$4,232 USD
View
19 more retailers have this diamond
Prices start from £1,132 GBPSave up to £2,013 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
£1,132 GBP