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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

GD • H/SI2 • GIA 3565508601

Certificate GIA 3565508601

Diamond specifications and retailer prices

From £979 GBP
As of November 6, 2026
Save £2,225 GBP (69%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,205 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by GIA 3565508601. Listed at 19 retailers as of November 5, 2026, with prices from £979 to £3,205, a £2,225 spread on the same certified stone. NZ Jewellers lists it at £3,205. 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
H
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 3565508601
Dimensions6.06 × 6.13 × 4.07 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.06 mm6.13 mm1.00 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3565508601
Side View
Table 55.0%Crown 39.5°Girdle: THN-VTKPavilion 39.8°Culet: NoneDepth 66.8%

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: £3,205 GBP|Low: £979 GBP|High: £3,205 GBP|Avg: £1,444 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
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 7£979 GBP
Retailer 16£991 GBP
Retailer 3£1,155 GBP
Retailer 17£1,195 GBP
Retailer 18£1,208 GBP
Retailer 10£1,209 GBP
Retailer 9£1,213 GBP
Retailer 2£1,222 GBP
Retailer 8£1,314 GBP
Retailer 12£1,367 GBP
Retailer 5£1,375 GBP
Retailer 11£1,413 GBP
Retailer 13£1,464 GBP
Retailer 6£1,516 GBP
Retailer 15£1,524 GBP
Retailer 14£1,684 GBP
Retailer 4£1,899 GBP
Retailer 19£2,295 GBP
NZ Jewellers£3,205 GBP

20 data points across 19 retailers

19 retailers£979 GBP to £3,205 GBP

A
Cheapest Retailer
-
£979 GBP
A
Retailer 2
-
£991 GBP
View
A
Retailer 3
-
£1,155 GBP
View
A
Retailer 4
-
£1,195 GBP
View
A
Retailer 5
-
£1,208 GBP
View
B+
Retailer 6
-
£1,209 GBP
View
B+
Retailer 7
-
£1,213 GBP
View
Final sale: no returns
A
Retailer 8
-
£1,222 GBP
View
A
Retailer 9
-
£1,314 GBP
View
B+
Retailer 10
-
£1,367 GBP
View
B+
Retailer 11
-
£1,375 GBP
View
B+
Retailer 12
-
£1,413 GBP
View
B+
Retailer 13
-
£1,464 GBP
View
B+
Retailer 14
-
£1,516 GBP
View
B+
Retailer 15
-
£1,524 GBP
View
B+
Retailer 16
-
£1,684 GBP
View
B+
Retailer 17
-
£1,899 GBP
View
B
Retailer 18
-
£2,295 GBP
View
Most Expensive
B
NZ Jewellers
96f8ff34-70b0-4e6a-b5cf-08acfa6b1b4a · Nov 5
£3,205 GBP
$4,313 USD
View
18 more retailers have this diamond
Prices start from £979 GBPSave up to £2,225 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
£979 GBP