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Round|Natural|GIA

3.13ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7506865109

Certificate GIA 7506865109

Diamond specifications and retailer prices

From £18,793 GBP
$25,180 USD
As of October 31, 2026
Save £9,752 GBP (34%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £28,544 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3.13ct natural round diamond

This 3.13ct 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 GIA 7506865109. Listed at 7 retailers as of October 31, 2026, with prices from £18,793 to £28,544, a £9,752 spread on the same certified stone. MOH London lists it at £28,544. 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

3.13
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7506865109
Dimensions9.32 × 9.37 × 5.75 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
9.32 mm9.37 mm3.13 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7506865109
Side View
Table 61.0%Crown 34°Girdle: STK-STKPavilion 41.4°Culet: NoneDepth 61.6%

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: Oct 31
Current: £28,544 GBP|Low: £16,343 GBP|High: £28,888 GBP|Avg: £21,839 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 4£18,793 GBP
Retailer 3£19,334 GBP
Retailer 7£19,594 GBP
Retailer 6£20,561 GBP
Retailer 2£21,632 GBP
Retailer 5£25,892 GBP
MOH London£28,544 GBP

27 data points across 7 retailers

7 retailers£18,793 GBP to £28,544 GBP

B+
Cheapest Retailer
-
£18,793 GBP
$25,180 USD
B+
Retailer 2
-
£19,334 GBP
$25,905 USD
View
Final sale: no returns
B+
Retailer 3
-
£19,594 GBP
$26,254 USD
View
B+
Retailer 4
-
£20,561 GBP
$27,550 USD
View
B+
Retailer 5
-
£21,632 GBP
€27,604 EUR
View
B
Retailer 6
-
£25,892 GBP
$34,693 USD
View
Most Expensive
B
MOH London
D15389C9A · Nov 1
£28,544 GBP
View
6 more retailers have this diamond
Prices start from £18,793 GBPSave up to £9,752 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+
3.13ct Round
£18,793 GBP