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Round|Natural|GIA

1.00ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 6315036607

Certificate GIA 6315036607

Diamond specifications and retailer prices

From £1,872 GBP
As of November 6, 2026
Save £3,222 GBP (63%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: £5,093 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 6315036607. Listed at 29 retailers as of November 5, 2026, with prices from £1,872 to £5,093, a £3,222 spread on the same certified stone. Diamond Quarter lists it at £5,093. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6315036607
Dimensions6.39 × 6.35 × 3.97 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.39 mm6.35 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6315036607
Side View
Table 60.0%Crown 34°Girdle: STK-THKPavilion 41.8°Culet: NoneDepth 62.3%

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: £2,207 GBP|Low: £1,872 GBP|High: £4,193 GBP|Avg: £2,461 GBP|-1.9%
Retailer 1
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
November 6, 2026
Retailer 2£1,872 GBP
Retailer 14£1,898 GBP
Retailer 9£1,980 GBP
Retailer 3£2,051 GBP
Retailer 4£2,089 GBP
Retailer 6£2,113 GBP
Retailer 5£2,129 GBP
Retailer 10£2,131 GBP
Retailer 1£2,207 GBP
Retailer 16£2,382 GBP
Retailer 8£2,411 GBP
Retailer 17£2,486 GBP
Retailer 7£2,676 GBP
Retailer 13£2,691 GBP
Retailer 11£2,815 GBP
Retailer 12£3,846 GBP
Retailer 15£4,150 GBP

30 data points across 17 retailers

29 retailers£1,872 GBP to £5,093 GBP

A
Cheapest Retailer
-
£1,872 GBP
A
Retailer 2
-
£1,898 GBP
View
B+
Retailer 3
-
£1,980 GBP
View
B+
Retailer 4
-
£2,051 GBP
View
Retailer 5
-
£2,089 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£2,089 GBP
View
B+
Retailer 7
-
£2,113 GBP
View
B+
Retailer 8
-
£2,129 GBP
View
Final sale: no returns
B+
Retailer 9
-
£2,131 GBP
View
B+
Retailer 10
-
£2,144 GBP
View
B+
Retailer 11
-
£2,155 GBP
View
B+
Retailer 12
-
£2,170 GBP
View
B+
Retailer 13
-
£2,207 GBP
View
B+
Retailer 14
-
£2,259 GBP
View
B+
Retailer 15
-
£2,259 GBP
View
B+
Retailer 16
-
£2,333 GBP
View
Retailer 17
-
£2,382 GBP
View
Price last confirmed 11 days ago
Retailer 18
-
£2,407 GBP
View
Price last confirmed 30 days ago
B+
Retailer 19
-
£2,411 GBP
View
Retailer 20
-
£2,464 GBP
View
Price last confirmed 30 days ago
Retailer 21
-
£2,486 GBP
View
Price last confirmed 12 days ago
Retailer 22
-
£2,676 GBP
View
Price last confirmed 14 days ago
B+
Retailer 23
-
£2,691 GBP
View
B+
Retailer 24
-
£2,815 GBP
View
B
Retailer 25
-
£3,846 GBP
View
B
Retailer 26
-
£4,019 GBP
View
Retailer 27
-
£4,150 GBP
View
Price last confirmed 10 days ago
Retailer 28
-
£4,193 GBP
View
Price last confirmed 31 days ago
Most Expensive
B
Diamond Quarter
1.0SI1G63072626N · Nov 5
£5,093 GBP
View
28 more retailers have this diamond
Prices start from £1,872 GBPSave up to £3,222 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
£1,872 GBP