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Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1569388017

Certificate GIA 1569388017

Diamond specifications and retailer prices

From £285 GBP
As of November 6, 2026
Save £1,100 GBP (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,384 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 1569388017. Listed at 21 retailers as of November 4, 2026, with prices from £285 to £1,384, a £1,100 spread on the same certified stone. NZ Jewellers lists it at £1,384. 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
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1569388017
Dimensions5.04 × 5.09 × 3.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
5.04 mm5.09 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1569388017
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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: £1,384 GBP|Low: £285 GBP|High: £1,384 GBP|Avg: £499 GBP|+14.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 2£285 GBP
Retailer 4£348 GBP
Retailer 17£353 GBP
Retailer 9£357 GBP
Retailer 6£386 GBP
Retailer 16£389 GBP
Retailer 10£392 GBP
Retailer 13£406 GBP
Retailer 8£416 GBP
Retailer 3£447 GBP
Retailer 14£482 GBP
Retailer 15£486 GBP
Retailer 12£497 GBP
Retailer 11£524 GBP
Retailer 5£536 GBP
Retailer 7£545 GBP
Retailer 18£892 GBP
NZ Jewellers£1,384 GBP

22 data points across 18 retailers

21 retailers£285 GBP to £1,384 GBP

A
Cheapest Retailer
-
£285 GBP
A
Retailer 2
-
£333 GBP
View
A
Retailer 3
-
£348 GBP
View
A
Retailer 4
-
£353 GBP
View
A
Retailer 5
-
£357 GBP
View
Final sale: no returns
A
Retailer 6
-
£386 GBP
View
A
Retailer 7
-
£389 GBP
View
Retailer 8
-
£392 GBP
View
Price last confirmed 19 days ago
A
Retailer 9
-
£406 GBP
View
A
Retailer 10
-
£416 GBP
View
A
Retailer 11
-
£447 GBP
View
A
Retailer 12
-
£482 GBP
View
B+
Retailer 13
-
£486 GBP
View
B+
Retailer 14
-
£497 GBP
View
B+
Retailer 15
-
£524 GBP
View
B+
Retailer 16
-
£536 GBP
View
B+
Retailer 17
-
£545 GBP
View
Retailer 18
-
£603 GBP
View
Price last confirmed 36 days ago
Retailer 19
-
£620 GBP
View
Price last confirmed 37 days ago
B
Retailer 20
-
£892 GBP
View
Most Expensive
C
NZ Jewellers
1572845e-f818-4d3b-bd7e-35ce98bf23b7 · Nov 4
£1,384 GBP
$1,863 USD
View
20 more retailers have this diamond
Prices start from £285 GBPSave up to £1,100 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
£285 GBP