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Round|Natural|GIA

3.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2558674001

Certificate GIA 2558674001

Diamond specifications and retailer prices

From £17,647 GBP
As of October 30, 2026
Save £9,829 GBP (36%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £27,477 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.5ct natural round diamond

This 3.5ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2558674001. Listed at 11 retailers as of October 29, 2026, with prices from £17,647 to £27,477, a £9,829 spread on the same certified stone. MOH London lists it at £27,477. 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

3.50
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2558674001
Dimensions9.76 × 9.82 × 5.86 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle, Indented Natural
Top View
9.76 mm9.82 mm3.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558674001
Side View
Table 61.0%Crown 33°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 59.9%

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: Oct 30
Current: £27,477 GBP|Low: £17,541 GBP|High: £27,660 GBP|Avg: £21,180 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 4£17,647 GBP
Retailer 8£17,897 GBP
Retailer 7£18,511 GBP
Retailer 6£19,317 GBP
Retailer 5£21,289 GBP
Retailer 2£21,731 GBP
Retailer 9£23,350 GBP
Retailer 3£23,677 GBP
MOH London£27,477 GBP

26 data points across 9 retailers

11 retailers£17,647 GBP to £27,477 GBP

A
Cheapest Retailer
-
£17,647 GBP
A
Retailer 2
-
£17,897 GBP
$23,980 USD
View
B+
Retailer 3
-
£18,511 GBP
$24,803 USD
View
Final sale: no returns
B+
Retailer 4
-
£19,317 GBP
$25,882 USD
View
B+
Retailer 5
-
£19,317 GBP
$25,882 USD
View
Retailer 6
-
£19,317 GBP
$25,882 USD
View
Price last confirmed 23 days ago
Retailer 7
-
£20,926 GBP
$28,039 USD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
£21,289 GBP
€27,167 EUR
View
B+
Retailer 9
-
£21,731 GBP
$29,117 USD
View
B+
Retailer 10
-
£23,677 GBP
View
Most Expensive
B
MOH London
3EF0822B2 · Oct 29
£27,477 GBP
View
10 more retailers have this diamond
Prices start from £17,647 GBPSave up to £9,829 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
3.50ct Round
£17,647 GBP