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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

GD • H/SI2 • GIA 6465009958

Certificate GIA 6465009958

Diamond specifications and retailer prices

From £1,050 GBP
As of November 5, 2026
Save £2,528 GBP (71%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,577 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 6465009958. Listed at 21 retailers as of November 5, 2026, with prices from £1,050 to £3,577, a £2,528 spread on the same certified stone. NZ Jewellers lists it at £3,577. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6465009958
Dimensions6.16 × 6.10 × 4.05 mm
L/W Ratio1.01
Top View
6.16 mm6.10 mm1.00 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6465009958
Side View
Table 61.0%Crown 38.5°Girdle: STK-VTKPavilion 41.6°Culet: NoneDepth 66.1%

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 5
Current: £1,364 GBP|Low: £1,050 GBP|High: £2,600 GBP|Avg: £1,511 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6£1,050 GBP
Retailer 11£1,065 GBP
Retailer 2£1,325 GBP
Retailer 10£1,337 GBP
Retailer 8£1,352 GBP
Retailer 3£1,354 GBP
Retailer 1£1,364 GBP
Retailer 4£1,479 GBP
Retailer 5£1,583 GBP
Retailer 9£1,784 GBP
Retailer 7£2,563 GBP

29 data points across 11 retailers

21 retailers£1,050 GBP to £3,577 GBP

A
Cheapest Retailer
-
£1,050 GBP
B+
Retailer 2
-
£1,065 GBP
View
B+
Retailer 3
-
£1,297 GBP
View
B+
Retailer 4
-
£1,325 GBP
View
B+
Retailer 5
-
£1,337 GBP
View
B+
Retailer 6
-
£1,352 GBP
View
B+
Retailer 7
-
£1,354 GBP
View
Final sale: no returns
B+
Retailer 8
-
£1,364 GBP
View
B+
Retailer 9
-
£1,433 GBP
View
Retailer 10
-
£1,467 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£1,467 GBP
View
B+
Retailer 12
-
£1,479 GBP
View
B+
Retailer 13
-
£1,534 GBP
View
B+
Retailer 14
-
£1,568 GBP
View
B+
Retailer 15
-
£1,583 GBP
View
B+
Retailer 16
-
£1,693 GBP
View
B+
Retailer 17
-
£1,784 GBP
View
B
Retailer 18
-
£2,563 GBP
View
B
Retailer 19
-
£2,785 GBP
View
B
Retailer 20
-
£2,798 GBP
View
Most Expensive
C
NZ Jewellers
10364019-0bd2-499c-a76b-98a3f2f7ad68 · Nov 5
£3,577 GBP
$4,815 USD
View
20 more retailers have this diamond
Prices start from £1,050 GBPSave up to £2,528 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
£1,050 GBP