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Marquise|Natural|GIA

0.50ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 6552462080

Certificate GIA 6552462080

Diamond specifications and retailer prices

From £408 GBP
As of November 6, 2026
Save £1,121 GBP (73%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,529 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552462080. Listed at 21 retailers as of November 5, 2026, with prices from £408 to £1,529, a £1,121 spread on the same certified stone. NZ Jewellers lists it at £1,529. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle39.9°
OriginNatural
Grading LabGIA
CertificateGIA 6552462080
Dimensions8.38 × 4.02 × 2.54 mm
L/W Ratio2.08
Girdle conditionFaceted
Top View
8.38 mm4.02 mm0.50 ctG / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552462080
Side View
Table 60.0%Crown 37.5°Girdle: STK-THKPavilion 39.9°Culet: NDepth 63.2%

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: £1,529 GBP|Low: £408 GBP|High: £1,602 GBP|Avg: £612 GBP|-4.6%
NZ Jewellers
Retailer 2
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Retailer 21
November 6, 2026
Retailer 19£408 GBP
Retailer 10£426 GBP
Retailer 21£439 GBP
Retailer 3£442 GBP
Retailer 7£476 GBP
Retailer 14£484 GBP
Retailer 2£488 GBP
Retailer 4£501 GBP
Retailer 9£506 GBP
Retailer 18£510 GBP
Retailer 12£526 GBP
Retailer 5£545 GBP
Retailer 6£545 GBP
Retailer 11£568 GBP
Retailer 13£579 GBP
Retailer 17£595 GBP
Retailer 16£610 GBP
Retailer 20£625 GBP
Retailer 15£650 GBP
Retailer 8£1,144 GBP
NZ Jewellers£1,529 GBP

23 data points across 21 retailers

21 retailers£408 GBP to £1,529 GBP

A
Cheapest Retailer
-
£408 GBP
Final sale: no returns
A
Retailer 2
-
£426 GBP
View
A
Retailer 3
-
£439 GBP
View
A
Retailer 4
-
£442 GBP
View
A
Retailer 5
-
£476 GBP
View
Retailer 6
-
£484 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£488 GBP
View
A
Retailer 8
-
£501 GBP
View
A
Retailer 9
-
£506 GBP
View
B+
Retailer 10
-
£510 GBP
View
B+
Retailer 11
-
£526 GBP
View
B+
Retailer 12
-
£545 GBP
View
B+
Retailer 13
-
£545 GBP
View
B+
Retailer 14
-
£568 GBP
View
B+
Retailer 15
-
£579 GBP
View
B+
Retailer 16
-
£595 GBP
View
B+
Retailer 17
-
£610 GBP
View
B+
Retailer 18
-
£625 GBP
View
B+
Retailer 19
-
£650 GBP
View
B
Retailer 20
-
£1,144 GBP
View
Most Expensive
B
NZ Jewellers
e4a29086-a210-4eb4-9250-1c4fdf02e3cd · Nov 5
£1,529 GBP
$2,046 USD
View
20 more retailers have this diamond
Prices start from £408 GBPSave up to £1,121 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
£408 GBP