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Round|Natural|GIA

1.04ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2557105674

Certificate GIA 2557105674

Diamond specifications and retailer prices

From £1,807 GBP
As of November 6, 2026
Save £2,050 GBP (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,124 GBP at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.04ct natural round diamond

This 1.04ct 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 2557105674. Listed at 17 retailers as of November 4, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.04
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557105674
Dimensions6.48 × 6.50 × 4.03 mm
L/W Ratio1.00
Top View
6.48 mm6.50 mm1.04 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557105674
Side View
Table 56.0%Crown 33°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.0%

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: £2,354 GBP|Low: £1,788 GBP|High: £3,962 GBP|Avg: £2,436 GBP|-3.7%
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 17£1,807 GBP
Retailer 4£1,889 GBP
Retailer 2£1,891 GBP
Retailer 3£1,907 GBP
Retailer 15£1,916 GBP
Retailer 5£2,016 GBP
Retailer 10£2,038 GBP
Retailer 9£2,156 GBP
Retailer 6£2,162 GBP
Retailer 8£2,209 GBP
Retailer 1£2,354 GBP
Retailer 11£2,354 GBP
Retailer 12£2,661 GBP
Retailer 13£2,797 GBP
Retailer 7£3,343 GBP
Retailer 16£3,616 GBP
Retailer 14£3,857 GBP

15 data points across 17 retailers

17 retailers£1,807 GBP to £3,857 GBP

A
Cheapest Retailer
-
£1,807 GBP
A
Retailer 2
-
£1,889 GBP
View
A
Retailer 3
-
£1,891 GBP
View
A
Retailer 4
-
£1,907 GBP
View
A
Retailer 5
-
£1,916 GBP
View
Final sale: no returns
Retailer 6
-
£2,016 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£2,038 GBP
View
B+
Retailer 8
-
£2,162 GBP
View
B+
Retailer 9
-
£2,209 GBP
View
B+
Retailer 10
-
£2,354 GBP
View
B+
Retailer 11
-
£2,354 GBP
View
B+
Retailer 12
-
£2,661 GBP
View
B+
Retailer 13
-
£2,797 GBP
View
B
Retailer 14
-
£3,343 GBP
View
B
Retailer 15
-
£3,616 GBP
View
B
Retailer 16
-
£3,857 GBP
View
Most Expensive
NZ Jewellers
4e1e2edf-37d6-49b4-972b-19b4a501f5d2 · Sep 21
£4,124 GBP
$5,551 USD
View
Price last confirmed 45 days ago
16 more retailers have this diamond
Prices start from £1,807 GBPSave up to £2,050 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
1.04ct Round
£1,807 GBP