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Round|Natural|GIA

1.04ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2454565443

Certificate GIA 2454565443

Diamond specifications and retailer prices

From £1,582 GBP
As of November 6, 2026
Save £2,525 GBP (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,107 GBP at NZ Jewellers · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2454565443. Listed at 10 retailers as of November 5, 2026, with prices from £1,582 to £4,107, a £2,525 spread on the same certified stone. NZ Jewellers lists it at £4,107. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2454565443
Dimensions6.48 × 6.45 × 4.04 mm
L/W Ratio1.00
Top View
6.48 mm6.45 mm1.04 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2454565443
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,107 GBP|Low: £1,369 GBP|High: £4,107 GBP|Avg: £2,486 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5£1,582 GBP
Retailer 6£1,643 GBP
Retailer 7£1,862 GBP
Retailer 2£2,086 GBP
Retailer 3£2,437 GBP
Retailer 4£3,433 GBP
NZ Jewellers£4,107 GBP

43 data points across 7 retailers

10 retailers£1,582 GBP to £4,107 GBP

B+
Cheapest Retailer
-
£1,582 GBP
B+
Retailer 2
-
£1,643 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,779 GBP
View
B
Retailer 4
-
£1,862 GBP
View
B
Retailer 5
-
£2,054 GBP
View
B+
Retailer 6
-
£2,086 GBP
View
B
Retailer 7
-
£2,437 GBP
View
B
Retailer 8
-
£2,855 GBP
View
B
Retailer 9
-
£3,433 GBP
View
Most Expensive
B
NZ Jewellers
957a97db-ebf9-4a1a-8701-582946eb55b2 · Nov 5
£4,107 GBP
$5,528 USD
View
9 more retailers have this diamond
Prices start from £1,582 GBPSave up to £2,525 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.

B+
1.04ct Round
£1,582 GBP