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Round|Natural|GIA

1.00ct D SI1 Round Natural Diamond

GD • D/SI1 • GIA 6332613666

Certificate GIA 6332613666

Diamond specifications and retailer prices

From £1,712 GBP
As of November 4, 2026
Save £2,222 GBP (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,934 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 6332613666. Listed at 21 retailers as of November 4, 2026, with prices from £1,712 to £3,934, a £2,222 spread on the same certified stone. NZ Jewellers lists it at £3,934. 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
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6332613666
Dimensions6.24 × 6.18 × 4.08 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Top View
6.24 mm6.18 mm1.00 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6332613666
Side View
Table 57.0%Crown 38.5°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 66.0%

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: £3,934 GBP|Low: £1,693 GBP|High: £3,934 GBP|Avg: £2,233 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
Retailer 20
Retailer 21
November 6, 2026
Retailer 20£1,712 GBP
Retailer 12£1,771 GBP
Retailer 14£1,791 GBP
Retailer 8£1,794 GBP
Retailer 18£1,814 GBP
Retailer 5£1,841 GBP
Retailer 19£1,861 GBP
Retailer 10£1,878 GBP
Retailer 9£1,895 GBP
Retailer 7£2,010 GBP
Retailer 3£2,046 GBP
Retailer 6£2,046 GBP
Retailer 4£2,125 GBP
Retailer 21£2,237 GBP
Retailer 2£2,308 GBP
Retailer 11£2,360 GBP
Retailer 13£2,377 GBP
Retailer 16£2,462 GBP
Retailer 15£2,756 GBP
Retailer 17£3,766 GBP
NZ Jewellers£3,934 GBP

32 data points across 21 retailers

21 retailers£1,712 GBP to £3,934 GBP

A
Cheapest Retailer
-
£1,712 GBP
A
Retailer 2
-
£1,771 GBP
View
A
Retailer 3
-
£1,791 GBP
View
B+
Retailer 4
-
£1,794 GBP
View
B+
Retailer 5
-
£1,841 GBP
View
A
Retailer 6
-
£1,861 GBP
View
B+
Retailer 7
-
£1,878 GBP
View
Final sale: no returns
B+
Retailer 8
-
£1,895 GBP
View
B+
Retailer 9
-
£2,010 GBP
View
Retailer 10
-
£2,046 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£2,046 GBP
View
B+
Retailer 12
-
£2,125 GBP
View
B+
Retailer 13
-
£2,237 GBP
View
B+
Retailer 14
-
£2,308 GBP
View
B+
Retailer 15
-
£2,360 GBP
View
B+
Retailer 16
-
£2,377 GBP
View
B+
Retailer 17
-
£2,462 GBP
View
Retailer 18
-
£2,479 GBP
View
Price last confirmed 33 days ago
B
Retailer 19
-
£2,756 GBP
View
B
Retailer 20
-
£3,766 GBP
View
Most Expensive
B
NZ Jewellers
0223bb7a-53df-400b-b13d-e56eb8da2878 · Nov 5
£3,934 GBP
$5,295 USD
View
20 more retailers have this diamond
Prices start from £1,712 GBPSave up to £2,222 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
£1,712 GBP