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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6415572811

Certificate GIA 6415572811

Diamond specifications and retailer prices

From £941 GBP
As of November 6, 2026
Save £2,154 GBP (70%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,095 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6415572811. Listed at 16 retailers as of November 5, 2026, with prices from £941 to £3,095, a £2,154 spread on the same certified stone. NZ Jewellers lists it at £3,095. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6415572811
Dimensions6.32 × 6.29 × 3.97 mm
L/W Ratio1.00
Top View
6.32 mm6.29 mm1.00 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6415572811
Side View
Table 55.0%CrownGirdle: SLI-THKPavilionCulet: NoneDepth 62.9%

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 6
Current: £3,095 GBP|Low: £932 GBP|High: £3,095 GBP|Avg: £1,462 GBP
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
November 6, 2026
Retailer 13£941 GBP
Retailer 7£1,156 GBP
Retailer 4£1,171 GBP
Retailer 8£1,198 GBP
Retailer 2£1,214 GBP
Retailer 5£1,244 GBP
Retailer 14£1,269 GBP
Retailer 16£1,269 GBP
Retailer 9£1,308 GBP
Retailer 15£1,328 GBP
Retailer 6£1,370 GBP
Retailer 10£1,400 GBP
Retailer 3£1,464 GBP
Retailer 11£1,720 GBP
Retailer 12£2,217 GBP
NZ Jewellers£3,095 GBP

34 data points across 16 retailers

16 retailers£941 GBP to £3,095 GBP

A
Cheapest Retailer
-
£941 GBP
B+
Retailer 2
-
£1,156 GBP
View
B+
Retailer 3
-
£1,171 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,214 GBP
View
B+
Retailer 5
-
£1,244 GBP
View
B+
Retailer 6
-
£1,269 GBP
View
Retailer 7
-
£1,269 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£1,285 GBP
View
B+
Retailer 9
-
£1,308 GBP
View
B+
Retailer 10
-
£1,328 GBP
View
B+
Retailer 11
-
£1,370 GBP
View
B+
Retailer 12
-
£1,400 GBP
View
B+
Retailer 13
-
£1,464 GBP
View
B
Retailer 14
-
£1,720 GBP
View
B
Retailer 15
-
£2,217 GBP
View
Most Expensive
C
NZ Jewellers
dca75a36-cb8a-453c-b424-2e578d9a0dfe · Nov 5
£3,095 GBP
$4,166 USD
View
15 more retailers have this diamond
Prices start from £941 GBPSave up to £2,154 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
£941 GBP