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3.05ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 623473225

Shape and cutting style on the report: Round brilliant

Certificate IGI 623473225

Diamond specifications and retailer prices

From £11,897 GBP
$15,940 USD
As of November 1, 2026
Save £6,993 GBP (37%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £18,889 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3.05ct natural round diamond

This 3.05ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 623473225. Listed at 15 retailers as of November 1, 2026, with prices from £11,897 to £18,889, a £6,993 spread on the same certified stone. MOH London lists it at £18,889. 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

3.05
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 623473225
Dimensions9.41 × 9.35 × 5.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.41 mm9.35 mm3.05 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 623473225
Side View
Table 60.0%Crown 32.4°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.7%

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 1
Current: £18,889 GBP|Low: £11,897 GBP|High: £20,181 GBP|Avg: £14,610 GBP|-6.4%
MOH London
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
November 1, 2026
Retailer 8£11,897 GBP
Retailer 14£12,152 GBP
Retailer 15£12,274 GBP
Retailer 10£12,736 GBP
Retailer 12£13,053 GBP
Retailer 9£13,245 GBP
Retailer 5£13,351 GBP
Retailer 6£14,241 GBP
Retailer 7£14,463 GBP
Retailer 2£14,611 GBP
Retailer 4£14,838 GBP
Retailer 13£15,020 GBP
Retailer 11£15,679 GBP
Retailer 3£17,135 GBP
MOH London£18,889 GBP

18 data points across 15 retailers

15 retailers£11,897 GBP to £18,889 GBP

A
Cheapest Retailer
-
£11,897 GBP
$15,940 USD
A
Retailer 2
-
£12,152 GBP
$16,283 USD
View
A
Retailer 3
-
£12,274 GBP
$16,446 USD
View
A
Retailer 4
-
£12,736 GBP
View
A
Retailer 5
-
£13,053 GBP
$17,490 USD
View
A
Retailer 6
-
£13,245 GBP
View
A
Retailer 7
-
£13,351 GBP
$17,889 USD
View
A
Retailer 8
-
£14,241 GBP
$19,081 USD
View
A
Retailer 9
-
£14,463 GBP
$19,379 USD
View
A
Retailer 10
-
£14,611 GBP
€18,645 EUR
View
A
Retailer 11
-
£14,838 GBP
$19,882 USD
View
A
Retailer 12
-
£15,020 GBP
$20,125 USD
View
A
Retailer 13
-
£15,679 GBP
ZAR 339,394 ZAR
View
B+
Retailer 14
-
£17,135 GBP
$22,959 USD
View
Most Expensive
B+
MOH London
A3C8E18F0 · Nov 1
£18,889 GBP
View
14 more retailers have this diamond
Prices start from £11,897 GBPSave up to £6,993 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
3.05ct Round
£11,897 GBP