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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2546306199

Certificate GIA 2546306199

Diamond specifications and retailer prices

From £573 GBP
As of November 4, 2026
Save £773 GBP (57%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £2,309 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 2546306199. Listed at 27 retailers as of November 4, 2026, with a 135% 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
Pavilion angle40.5°
OriginNatural
Grading LabGIA
CertificateGIA 2546306199
Dimensions7.92 × 4.07 × 2.59 mm
L/W Ratio1.95
Top View
7.92 mm4.07 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546306199
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 40.5°Culet: NoneDepth 63.6%

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: £2,309 GBP|Low: £573 GBP|High: £2,309 GBP|Avg: £992 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
November 6, 2026
Retailer 11£573 GBP
Retailer 7£643 GBP
Retailer 3£665 GBP
Retailer 4£667 GBP
Retailer 13£692 GBP
Retailer 5£770 GBP
Retailer 10£784 GBP
Retailer 6£854 GBP
Retailer 2£1,030 GBP
Retailer 12£1,107 GBP
Retailer 8£1,136 GBP
Retailer 9£1,346 GBP
NZ Jewellers£2,309 GBP

45 data points across 13 retailers

27 retailers£573 GBP to £1,346 GBP

A
Cheapest Retailer
-
£573 GBP
Final sale: no returns
B+
Retailer 2
-
£617 GBP
View
B+
Retailer 3
-
£643 GBP
View
B+
Retailer 4
-
£655 GBP
View
B+
Retailer 5
-
£661 GBP
View
B+
Retailer 6
-
£665 GBP
View
B+
Retailer 7
-
£667 GBP
View
Retailer 8
-
£667 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£667 GBP
View
B+
Retailer 10
-
£675 GBP
View
B+
Retailer 11
-
£692 GBP
View
B+
Retailer 12
-
£742 GBP
View
B+
Retailer 13
-
£770 GBP
View
B
Retailer 14
-
£784 GBP
View
B+
Retailer 15
-
£817 GBP
View
B+
Retailer 16
-
£817 GBP
View
B+
Retailer 17
-
£828 GBP
View
B+
Retailer 18
-
£840 GBP
View
B+
Retailer 19
-
£854 GBP
View
B
Retailer 20
-
£908 GBP
View
B
Retailer 21
-
£975 GBP
View
B
Retailer 22
-
£1,030 GBP
View
Retailer 23
-
£1,107 GBP
View
Price last confirmed 32 days ago
B
Retailer 24
-
£1,136 GBP
View
B
Retailer 25
-
£1,191 GBP
View
B
Retailer 26
-
£1,346 GBP
View
Most Expensive
NZ Jewellers
28f8e5c3-ca23-4b8a-a260-8f98ca41cfbc · Nov 5
£2,309 GBP
$3,108 USD
View
Price under review
26 more retailers have this diamond
Prices start from £573 GBPSave up to £773 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 Marquise
£573 GBP