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Round|Natural|GIA

1.01ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2507300122

Certificate GIA 2507300122

Diamond specifications and retailer prices

From £1,924 GBP
As of November 6, 2026
Save £3,097 GBP (62%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £5,020 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2507300122. Listed at 24 retailers as of November 5, 2026, with prices from £1,924 to £5,020, a £3,097 spread on the same certified stone. Diamond Quarter lists it at £5,020. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2507300122
Dimensions6.41 × 6.39 × 4.03 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.41 mm6.39 mm1.01 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507300122
Side View
Table 56.0%Crown 36.5°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 63.0%

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 6
Current: £1,924 GBP|Low: £1,911 GBP|High: £4,497 GBP|Avg: £2,780 GBP|-4.8%
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
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 1£1,924 GBP
Retailer 19£1,930 GBP
Retailer 11£2,204 GBP
Retailer 5£2,291 GBP
Retailer 18£2,326 GBP
Retailer 3£2,339 GBP
Retailer 10£2,382 GBP
Retailer 6£2,485 GBP
Retailer 4£2,581 GBP
Retailer 9£2,581 GBP
Retailer 14£2,638 GBP
Retailer 12£2,679 GBP
Retailer 7£2,681 GBP
Retailer 8£2,688 GBP
Retailer 13£2,809 GBP
Retailer 16£2,817 GBP
Retailer 2£2,978 GBP
Retailer 15£3,150 GBP
Retailer 17£4,304 GBP
Retailer 20£4,497 GBP

30 data points across 20 retailers

24 retailers£1,924 GBP to £5,020 GBP

A
Cheapest Retailer
-
£1,924 GBP
A
Retailer 2
-
£1,930 GBP
View
B+
Retailer 3
-
£2,204 GBP
View
B+
Retailer 4
-
£2,291 GBP
View
B+
Retailer 5
-
£2,326 GBP
View
B+
Retailer 6
-
£2,339 GBP
View
B+
Retailer 7
-
£2,382 GBP
View
Final sale: no returns
B+
Retailer 8
-
£2,485 GBP
View
B+
Retailer 9
-
£2,581 GBP
View
Retailer 10
-
£2,581 GBP
View
Price last confirmed 8 days ago
Retailer 11
-
£2,623 GBP
View
Price last confirmed 43 days ago
B+
Retailer 12
-
£2,638 GBP
View
B+
Retailer 13
-
£2,679 GBP
View
B
Retailer 14
-
£2,681 GBP
View
B
Retailer 15
-
£2,688 GBP
View
Retailer 16
-
£2,809 GBP
View
Price last confirmed 29 days ago
B+
Retailer 17
-
£2,817 GBP
View
B
Retailer 18
-
£2,978 GBP
View
Retailer 19
-
£3,027 GBP
View
Price last confirmed 45 days ago
B+
Retailer 20
-
£3,150 GBP
View
B
Retailer 21
-
£4,304 GBP
View
B
Retailer 22
-
£4,497 GBP
View
Retailer 23
-
£4,570 GBP
View
Price last confirmed 42 days ago
Most Expensive
B
Diamond Quarter
1.01SI1G252251BDN · Nov 5
£5,020 GBP
View
23 more retailers have this diamond
Prices start from £1,924 GBPSave up to £3,097 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
1.01ct Round
£1,924 GBP