Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552464721

Certificate GIA 6552464721

Diamond specifications and retailer prices

From £472 GBP
As of November 4, 2026
Save £568 GBP (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,785 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552464721. Listed at 20 retailers as of November 4, 2026, with a 120% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6552464721
Dimensions5.01 × 5.05 × 3.19 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal
Top View
5.01 mm5.05 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552464721
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.4%

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 4
Current: £673 GBP|Low: £363 GBP|High: £1,054 GBP|Avg: £693 GBP|+4.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8£476 GBP
Retailer 10£506 GBP
Retailer 2£536 GBP
Retailer 3£566 GBP
Retailer 11£650 GBP
Retailer 1£673 GBP
Retailer 4£721 GBP
Retailer 5£732 GBP
Retailer 9£855 GBP
Retailer 6£878 GBP
Retailer 7£1,040 GBP

45 data points across 11 retailers

20 retailers£472 GBP to £1,040 GBP

A
Cheapest Retailer
-
£472 GBP
A
Retailer 2
-
£476 GBP
View
Final sale: no returns
Retailer 3
-
£506 GBP
View
Price last confirmed 26 days ago
Retailer 4
-
£516 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£516 GBP
View
B+
Retailer 6
-
£523 GBP
View
B+
Retailer 7
-
£536 GBP
View
B+
Retailer 8
-
£566 GBP
View
B+
Retailer 9
-
£595 GBP
View
B
Retailer 10
-
£650 GBP
View
B+
Retailer 11
-
£673 GBP
View
B+
Retailer 12
-
£684 GBP
View
B+
Retailer 13
-
£721 GBP
View
B+
Retailer 14
-
£732 GBP
View
B
Retailer 15
-
£796 GBP
View
Retailer 16
-
£855 GBP
View
Price last confirmed 32 days ago
B
Retailer 17
-
£878 GBP
View
B
Retailer 18
-
£1,040 GBP
View
Retailer 19
-
£1,643 GBP
View
Price under review
Most Expensive
NZ Jewellers
be8c8f58-9d90-4806-9b58-abe7e190a120 · Nov 4
£1,785 GBP
$2,402 USD
View
Price under review
19 more retailers have this diamond
Prices start from £472 GBPSave up to £568 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
0.50ct Round
£472 GBP