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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 3555673014

Certificate GIA 3555673014

Diamond specifications and retailer prices

From £625 GBP
As of November 4, 2026
Save £741 GBP (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,343 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555673014. Listed at 23 retailers as of November 4, 2026, with a 119% 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.8°
Pavilion angle38.5°
OriginNatural
Grading LabGIA
CertificateGIA 3555673014
Dimensions8.04 × 4.23 × 2.56 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Top View
8.04 mm4.23 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555673014
Side View
Table 61.0%Crown 37.8°Girdle: MED-THKPavilion 38.5°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,343 GBP|Low: £521 GBP|High: £2,343 GBP|Avg: £971 GBP
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
November 6, 2026
Retailer 12£625 GBP
Retailer 10£628 GBP
Retailer 3£664 GBP
Retailer 5£677 GBP
Retailer 4£680 GBP
Retailer 14£703 GBP
Retailer 6£781 GBP
Retailer 11£795 GBP
Retailer 7£867 GBP
Retailer 13£976 GBP
Retailer 2£1,043 GBP
Retailer 8£1,152 GBP
Retailer 9£1,366 GBP
NZ Jewellers£2,343 GBP

45 data points across 14 retailers

23 retailers£625 GBP to £1,366 GBP

Retailer 1
-
£437 GBP
Price last confirmed 63 days ago
Retailer 2
-
£542 GBP
View
Price last confirmed 66 days ago
B+
Retailer 3
-
£625 GBP
View
Final sale: no returns
B+
Retailer 4
-
£626 GBP
View
Retailer 5
-
£628 GBP
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£664 GBP
View
B+
Retailer 7
-
£670 GBP
View
Retailer 8
-
£677 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£677 GBP
View
B+
Retailer 10
-
£680 GBP
View
B+
Retailer 11
-
£684 GBP
View
B+
Retailer 12
-
£703 GBP
View
B
Retailer 13
-
£781 GBP
View
B
Retailer 14
-
£795 GBP
View
B+
Retailer 15
-
£840 GBP
View
B+
Retailer 16
-
£867 GBP
View
Retailer 17
-
£976 GBP
View
Price last confirmed 33 days ago
B
Retailer 18
-
£986 GBP
View
B
Retailer 19
-
£1,043 GBP
View
B
Retailer 20
-
£1,152 GBP
View
B
Retailer 21
-
£1,209 GBP
View
B
Retailer 22
-
£1,366 GBP
View
Most Expensive
NZ Jewellers
a4464c76-57a6-4d98-832a-e3dcbcb31472 · Nov 5
£2,343 GBP
$3,153 USD
View
Price under review
22 more retailers have this diamond
Prices start from £625 GBPSave up to £741 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.

B+
0.50ct Marquise
£625 GBP