Round|Natural|GIA

0.50ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1433817949

Certificate GIA 1433817949

Diamond specifications and retailer prices

From £475 GBP
As of October 31, 2026
Save £1,584 GBP (77%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,059 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1433817949. Listed at 24 retailers as of October 31, 2026, with prices from £475 to £2,059, a £1,584 spread on the same certified stone. NZ Jewellers lists it at £2,059. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1433817949
Dimensions5.10 × 5.08 × 3.13 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
5.10 mm5.08 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1433817949
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

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 31
Current: £845 GBP|Low: £473 GBP|High: £1,208 GBP|Avg: £764 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11£475 GBP
Retailer 12£484 GBP
Retailer 4£606 GBP
Retailer 9£632 GBP
Retailer 5£669 GBP
Retailer 2£734 GBP
Retailer 6£756 GBP
Retailer 3£776 GBP
Retailer 7£821 GBP
Retailer 1£845 GBP
Retailer 8£1,013 GBP
Retailer 10£1,201 GBP

28 data points across 12 retailers

24 retailers£475 GBP to £2,059 GBP

A
Cheapest Retailer
-
£475 GBP
A
Retailer 2
-
£484 GBP
View
A
Retailer 3
-
£586 GBP
View
B+
Retailer 4
-
£606 GBP
View
Final sale: no returns
B+
Retailer 5
-
£632 GBP
View
B+
Retailer 6
-
£657 GBP
View
B+
Retailer 7
-
£664 GBP
View
B+
Retailer 8
-
£669 GBP
View
B+
Retailer 9
-
£682 GBP
View
B+
Retailer 10
-
£734 GBP
View
B+
Retailer 11
-
£755 GBP
View
B+
Retailer 12
-
£756 GBP
View
B+
Retailer 13
-
£758 GBP
View
B
Retailer 14
-
£776 GBP
View
B+
Retailer 15
-
£810 GBP
View
B+
Retailer 16
-
£821 GBP
View
B+
Retailer 17
-
£845 GBP
View
B+
Retailer 18
-
£869 GBP
View
B
Retailer 19
-
£985 GBP
View
Retailer 20
-
£987 GBP
View
Price last confirmed 33 days ago
B
Retailer 21
-
£1,013 GBP
View
B
Retailer 22
-
£1,201 GBP
View
B
Retailer 23
-
£1,366 GBP
View
Most Expensive
B
NZ Jewellers
e0159d74-02fa-4072-a3b9-2aa353d35d88 · Nov 4
£2,059 GBP
$2,771 USD
View
23 more retailers have this diamond
Prices start from £475 GBPSave up to £1,584 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
£475 GBP