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Round|Natural|GIA

5.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6555651930

Certificate GIA 6555651930

Diamond specifications and retailer prices

From £42,260 GBP
$56,624 USD
As of October 30, 2026
Save £32,269 GBP (43%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £74,530 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 5.5ct natural round diamond

This 5.5ct 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 6555651930. Listed at 12 retailers as of October 29, 2026, with prices from £42,260 to £74,530, a £32,269 spread on the same certified stone. MOH London lists it at £74,530. 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

5.50
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555651930
Dimensions11.62 × 11.58 × 6.79 mm
L/W Ratio1.00
Key to symbols
Feather, Crystal, Needle
Top View
11.62 mm11.58 mm5.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555651930
Side View
Table 60.0%Crown 32°GirdlePavilion 41°Culet: NoneDepth 58.5%

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: £74,530 GBP|Low: £42,260 GBP|High: £74,530 GBP|Avg: £51,167 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 5£42,260 GBP
Retailer 12£43,016 GBP
Retailer 8£47,185 GBP
Retailer 9£47,467 GBP
Retailer 3£49,445 GBP
Retailer 10£49,445 GBP
Retailer 7£50,246 GBP
Retailer 6£50,780 GBP
Retailer 11£51,423 GBP
Retailer 4£53,401 GBP
Retailer 2£57,595 GBP
MOH London£74,530 GBP

4 data points across 12 retailers

12 retailers£42,260 GBP to £74,530 GBP

A
Cheapest Retailer
-
£42,260 GBP
$56,624 USD
A
Retailer 2
-
£43,016 GBP
$57,637 USD
View
B+
Retailer 3
-
£47,185 GBP
View
B+
Retailer 4
-
£47,467 GBP
$63,601 USD
View
B+
Retailer 5
-
£49,445 GBP
$66,251 USD
View
B+
Retailer 6
-
£49,445 GBP
$66,251 USD
View
B+
Retailer 7
-
£50,246 GBP
View
B+
Retailer 8
-
£50,780 GBP
$68,039 USD
View
B+
Retailer 9
-
£51,423 GBP
$68,901 USD
View
B+
Retailer 10
-
£53,401 GBP
$71,551 USD
View
B
Retailer 11
-
£57,595 GBP
€73,496 EUR
View
Most Expensive
B
MOH London
E482B605D · Oct 29
£74,530 GBP
View
11 more retailers have this diamond
Prices start from £42,260 GBPSave up to £32,269 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
5.50ct Round
£42,260 GBP