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0.52ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 3555978164

Certificate GIA 3555978164

Diamond specifications and retailer prices

From £322 GBP
As of November 6, 2026
Save £665 GBP (67%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £987 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.52ct natural round diamond

This 0.52ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555978164. Listed at 10 retailers as of November 4, 2026, with prices from £322 to £987, a £665 spread on the same certified stone. MOH London lists it at £987. 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

0.52
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 3555978164
Dimensions5.17 × 5.19 × 3.17 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
5.17 mm5.19 mm0.52 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555978164
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.1%

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 6
Current: £987 GBP|Low: £322 GBP|High: £1,065 GBP|Avg: £558 GBP|-7.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£322 GBP
Retailer 5£348 GBP
Retailer 6£371 GBP
Retailer 7£428 GBP
Retailer 8£458 GBP
Retailer 3£517 GBP
Retailer 4£589 GBP
Retailer 9£594 GBP
MOH London£987 GBP

29 data points across 9 retailers

10 retailers£322 GBP to £987 GBP

A
Cheapest Retailer
-
£322 GBP
A
Retailer 2
-
£348 GBP
View
A
Retailer 3
-
£371 GBP
View
A
Retailer 4
-
£428 GBP
View
A
Retailer 5
-
£458 GBP
View
A
Retailer 6
-
£517 GBP
View
B+
Retailer 7
-
£589 GBP
View
B+
Retailer 8
-
£594 GBP
View
Retailer 9
-
£694 GBP
View
Price last confirmed 40 days ago
Most Expensive
B
MOH London
78CD1C4C5 · Nov 4
£987 GBP
View
9 more retailers have this diamond
Prices start from £322 GBPSave up to £665 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
0.52ct Round
£322 GBP