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Round|Natural|GIA

6.03ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6233855452

Certificate GIA 6233855452

Diamond specifications and retailer prices

From £56,710 GBP
$75,986 USD
As of October 31, 2026
Save £13,469 GBP (19%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £98,485 GBP at MOH London · As of October 19, 2026
View at MOH London

About this 6.03ct natural round diamond

This 6.03ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6233855452. Listed at 9 retailers as of October 30, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

6.03
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle31.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6233855452
Dimensions11.69 × 11.78 × 7.15 mm
L/W Ratio1.01
Top View
11.69 mm11.78 mm6.03 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6233855452
Side View
Table 60.0%Crown 31.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.0%

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: £98,485 GBP|Low: £56,710 GBP|High: £99,009 GBP|Avg: £68,512 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 6£56,710 GBP
Retailer 2£58,753 GBP
Retailer 8£59,974 GBP
Retailer 5£61,445 GBP
Retailer 3£62,659 GBP
Retailer 4£62,659 GBP
Retailer 7£70,179 GBP
Retailer 9£70,481 GBP
MOH London£98,485 GBP

11 data points across 9 retailers

9 retailers£56,710 GBP to £70,179 GBP

B+
Cheapest Retailer
-
£56,710 GBP
$75,986 USD
B+
Retailer 2
-
£58,753 GBP
View
Retailer 3
-
£59,974 GBP
$80,358 USD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
£61,445 GBP
$82,330 USD
View
B+
Retailer 5
-
£62,659 GBP
$83,956 USD
View
B+
Retailer 6
-
£62,659 GBP
$83,956 USD
View
B
Retailer 7
-
£70,179 GBP
€89,555 EUR
View
Retailer 8
-
£70,481 GBP
$94,437 USD
View
Price last confirmed 12 days ago
Most Expensive
MOH London
69A096F00 · Oct 19
£98,485 GBP
View
Price last confirmed 13 days ago
8 more retailers have this diamond
Prices start from £56,710 GBPSave up to £13,469 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+
6.03ct Round
£56,710 GBP