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Round|Natural|GIA

0.50ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 1515555934

Certificate GIA 1515555934

Diamond specifications and retailer prices

From £643 GBP
As of November 4, 2026
Save £1,273 GBP (66%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,915 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1515555934. Listed at 19 retailers as of November 4, 2026, with prices from £643 to £1,915, a £1,273 spread on the same certified stone. NZ Jewellers lists it at £1,915. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1515555934
Dimensions5.16 × 5.15 × 3.11 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
5.16 mm5.15 mm0.50 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1515555934
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.3%

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: £906 GBP|Low: £547 GBP|High: £1,456 GBP|Avg: £901 GBP|+3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3£643 GBP
Retailer 5£656 GBP
Retailer 6£707 GBP
Retailer 1£906 GBP
Retailer 2£1,009 GBP
Retailer 4£1,440 GBP

40 data points across 6 retailers

19 retailers£643 GBP to £1,915 GBP

A
Cheapest Retailer
-
£643 GBP
B+
Retailer 2
-
£656 GBP
View
Final sale: no returns
B+
Retailer 3
-
£702 GBP
View
B+
Retailer 4
-
£707 GBP
View
B+
Retailer 5
-
£707 GBP
View
B+
Retailer 6
-
£711 GBP
View
B+
Retailer 7
-
£718 GBP
View
B+
Retailer 8
-
£739 GBP
View
B+
Retailer 9
-
£821 GBP
View
B+
Retailer 10
-
£862 GBP
View
B+
Retailer 11
-
£862 GBP
View
B+
Retailer 12
-
£884 GBP
View
B+
Retailer 13
-
£892 GBP
View
B+
Retailer 14
-
£906 GBP
View
B
Retailer 15
-
£1,009 GBP
View
B
Retailer 16
-
£1,061 GBP
View
B
Retailer 17
-
£1,273 GBP
View
Retailer 18
-
£1,440 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
NZ Jewellers
d2356e8f-e465-48bd-bc69-bade18fb2a99 · Nov 4
£1,915 GBP
$2,578 USD
View
18 more retailers have this diamond
Prices start from £643 GBPSave up to £1,273 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
£643 GBP