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Marquise|Natural|GIA

0.50ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 6555715955

Certificate GIA 6555715955

Diamond specifications and retailer prices

From £279 GBP
As of November 6, 2026
Save £923 GBP (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,201 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555715955. Listed at 15 retailers as of November 5, 2026, with prices from £279 to £1,201, a £923 spread on the same certified stone. NZ Jewellers lists it at £1,201. 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
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555715955
Dimensions8.06 × 4.22 × 2.59 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
8.06 mm4.22 mm0.50 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555715955
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 61.4%

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: £1,201 GBP|Low: £279 GBP|High: £1,219 GBP|Avg: £525 GBP|-1.5%
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
Retailer 15
November 6, 2026
Retailer 2£279 GBP
Retailer 6£325 GBP
Retailer 11£383 GBP
Retailer 5£400 GBP
Retailer 3£412 GBP
Retailer 12£412 GBP
Retailer 4£442 GBP
Retailer 10£442 GBP
Retailer 8£455 GBP
Retailer 9£472 GBP
Retailer 7£476 GBP
Retailer 15£481 GBP
Retailer 14£573 GBP
Retailer 13£884 GBP
NZ Jewellers£1,201 GBP

24 data points across 15 retailers

15 retailers£279 GBP to £1,201 GBP

A
Cheapest Retailer
-
£279 GBP
B+
Retailer 2
-
£325 GBP
View
B+
Retailer 3
-
£383 GBP
View
B+
Retailer 4
-
£400 GBP
View
Retailer 5
-
£412 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£412 GBP
View
B+
Retailer 7
-
£442 GBP
View
B+
Retailer 8
-
£442 GBP
View
B+
Retailer 9
-
£455 GBP
View
B+
Retailer 10
-
£472 GBP
View
B+
Retailer 11
-
£476 GBP
View
B+
Retailer 12
-
£481 GBP
View
B
Retailer 13
-
£573 GBP
View
B
Retailer 14
-
£884 GBP
View
Most Expensive
C
NZ Jewellers
dffc7c84-d095-4742-8a74-67799d08f478 · Nov 5
£1,201 GBP
$1,608 USD
View
14 more retailers have this diamond
Prices start from £279 GBPSave up to £923 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
£279 GBP