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1.04ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7551891973

Certificate GIA 7551891973

Diamond specifications and retailer prices

From £1,074 GBP
As of November 6, 2026
Save £947 GBP (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,021 GBP at With Clarity · As of November 4, 2026
View at With Clarity

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 7551891973. Listed at 8 retailers as of November 4, 2026, with prices from £1,074 to £2,021, a £947 spread on the same certified stone. With Clarity lists it at £2,021. 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
FluorescenceMedium
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7551891973
Dimensions6.40 × 6.44 × 4.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
6.40 mm6.44 mm1.04 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7551891973
Side View
Table 57.0%Crown 35.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 63.1%

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: £1,493 GBP|Low: £1,065 GBP|High: £2,002 GBP|Avg: £1,451 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
November 6, 2026
Retailer 3£1,074 GBP
Retailer 6£1,314 GBP
Retailer 4£1,350 GBP
Retailer 2£1,352 GBP
Retailer 7£1,449 GBP
Retailer 1£1,493 GBP
Retailer 8£1,561 GBP
Retailer 5£1,586 GBP
With Clarity£2,002 GBP

12 data points across 9 retailers

8 retailers£1,074 GBP to £2,021 GBP

A
Cheapest Retailer
-
£1,074 GBP
B+
Retailer 2
-
£1,314 GBP
View
B+
Retailer 3
-
£1,350 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,352 GBP
View
B+
Retailer 5
-
£1,449 GBP
View
B+
Retailer 6
-
£1,493 GBP
View
B+
Retailer 7
-
£1,586 GBP
View
Most Expensive
B
With Clarity
7551891973 · Nov 4
£2,021 GBP
$2,720 USD
View
7 more retailers have this diamond
Prices start from £1,074 GBPSave up to £947 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
£1,074 GBP