CaratHunter
Plans
Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 6561734759

Certificate GIA 6561734759

Diamond specifications and retailer prices

From £384 GBP
$515 USD
As of November 1, 2026
Save £819 GBP (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,203 GBP at NZ Jewellers · As of October 30, 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 I 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 6561734759. Listed at 7 retailers as of October 30, 2026, with prices from £384 to £1,203, a £819 spread on the same certified stone. NZ Jewellers lists it at £1,203. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561734759
Dimensions8.87 × 4.00 × 2.58 mm
L/W Ratio2.22
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
8.87 mm4.00 mm0.50 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561734759
Side View
Table 57.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 64.4%

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 1
Current: £1,203 GBP|Low: £384 GBP|High: £1,203 GBP|Avg: £702 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5£384 GBP
Retailer 2£413 GBP
Retailer 3£458 GBP
Retailer 4£544 GBP
Retailer 6£886 GBP
NZ Jewellers£1,203 GBP

4 data points across 6 retailers

7 retailers£384 GBP to £1,203 GBP

A
Cheapest Retailer
-
£384 GBP
$515 USD
A
Retailer 2
-
£390 GBP
SGD 707 SGD
View
B+
Retailer 3
-
£413 GBP
$554 USD
View
B+
Retailer 4
-
£458 GBP
View
B+
Retailer 5
-
£544 GBP
€695 EUR
View
C
Retailer 6
-
£886 GBP
View
Most Expensive
C
NZ Jewellers
4fd195cc-9511-49d6-9086-2a765a2135eb · Oct 30
£1,203 GBP
$1,614 USD
View
6 more retailers have this diamond
Prices start from £384 GBPSave up to £819 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
£384 GBP