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Round|Natural|GIA

1.04ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2556880911

Certificate GIA 2556880911

Diamond specifications and retailer prices

From £1,508 GBP
As of November 4, 2026
Save £1,712 GBP (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,220 GBP at MOH London · As of November 4, 2026
View at MOH London

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 2556880911. Listed at 7 retailers as of November 4, 2026, with prices from £1,508 to £3,220, a £1,712 spread on the same certified stone. MOH London lists it at £3,220. 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
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556880911
Dimensions6.46 × 6.48 × 4.06 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle, Natural
Top View
6.46 mm6.48 mm1.04 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556880911
Side View
Table 58.0%Crown 35°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.7%

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 4
Current: £3,220 GBP|Low: £1,508 GBP|High: £3,220 GBP|Avg: £2,117 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5£1,508 GBP
Retailer 7£1,708 GBP
Retailer 6£1,894 GBP
Retailer 2£1,938 GBP
Retailer 4£2,250 GBP
Retailer 3£2,288 GBP
MOH London£3,220 GBP

4 data points across 7 retailers

7 retailers£1,508 GBP to £3,220 GBP

B+
Cheapest Retailer
-
£1,508 GBP
B+
Retailer 2
-
£1,708 GBP
View
B
Retailer 3
-
£1,894 GBP
View
B+
Retailer 4
-
£1,938 GBP
View
B
Retailer 5
-
£2,250 GBP
View
B
Retailer 6
-
£2,288 GBP
View
Most Expensive
B
MOH London
F1986700C · Nov 4
£3,220 GBP
View
6 more retailers have this diamond
Prices start from £1,508 GBPSave up to £1,712 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
£1,508 GBP