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Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 6485924249

Certificate GIA 6485924249

Diamond specifications and retailer prices

From £1,512 GBP
As of November 6, 2026
Save £2,724 GBP (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,236 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6485924249. Listed at 22 retailers as of November 5, 2026, with prices from £1,512 to £4,236, a £2,724 spread on the same certified stone. NZ Jewellers lists it at £4,236. 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
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 6485924249
Dimensions6.24 × 6.17 × 4.00 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.24 mm6.17 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6485924249
Side View
Table 57.0%Crown 38°Girdle: ThickPavilion 40.2°Culet: NoneDepth 64.4%

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: £4,236 GBP|Low: £1,493 GBP|High: £4,236 GBP|Avg: £2,232 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£1,512 GBP
Retailer 21£1,631 GBP
Retailer 6£1,815 GBP
Retailer 10£1,869 GBP
Retailer 11£1,875 GBP
Retailer 2£1,938 GBP
Retailer 8£1,995 GBP
Retailer 4£2,026 GBP
Retailer 12£2,026 GBP
Retailer 9£2,066 GBP
Retailer 13£2,097 GBP
Retailer 7£2,104 GBP
Retailer 3£2,131 GBP
Retailer 15£2,132 GBP
Retailer 14£2,223 GBP
Retailer 5£2,338 GBP
Retailer 16£2,373 GBP
Retailer 18£2,473 GBP
Retailer 17£2,511 GBP
Retailer 19£3,540 GBP
NZ Jewellers£4,236 GBP

28 data points across 21 retailers

22 retailers£1,512 GBP to £4,236 GBP

A
Cheapest Retailer
-
£1,512 GBP
B+
Retailer 2
-
£1,631 GBP
View
B+
Retailer 3
-
£1,815 GBP
View
B+
Retailer 4
-
£1,869 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,875 GBP
View
B+
Retailer 6
-
£1,938 GBP
View
B+
Retailer 7
-
£1,995 GBP
View
Retailer 8
-
£2,026 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£2,026 GBP
View
B+
Retailer 10
-
£2,066 GBP
View
B+
Retailer 11
-
£2,097 GBP
View
B+
Retailer 12
-
£2,104 GBP
View
B+
Retailer 13
-
£2,131 GBP
View
B+
Retailer 14
-
£2,132 GBP
View
Retailer 15
-
£2,223 GBP
View
Price last confirmed 30 days ago
B+
Retailer 16
-
£2,338 GBP
View
B+
Retailer 17
-
£2,373 GBP
View
B
Retailer 18
-
£2,473 GBP
View
B
Retailer 19
-
£2,511 GBP
View
B
Retailer 20
-
£3,540 GBP
View
B
Retailer 21
-
£3,930 GBP
View
Most Expensive
C
NZ Jewellers
be3caa5f-79b1-4bc8-a275-92672e6c89a4 · Nov 5
£4,236 GBP
$5,701 USD
View
21 more retailers have this diamond
Prices start from £1,512 GBPSave up to £2,724 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
£1,512 GBP