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Marquise|Natural|GIA

0.50ct H I1 Marquise Natural Diamond

H/I1 • GIA 6555378061

Certificate GIA 6555378061

Diamond specifications and retailer prices

From £276 GBP
₹35,315 INR
As of November 2, 2026
Save £124 GBP (31%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,423 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 H colour (near-colourless) and I1 clarity (included) and certified by GIA 6555378061. Listed at 5 retailers as of October 29, 2026, with a 45% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
I1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555378061
Dimensions8.61 × 3.91 × 2.44 mm
L/W Ratio2.20
Girdle conditionThick to Very Thick
Key to symbols
Twinning Wisp, Feather
Top View
8.61 mm3.91 mm0.50 ctH / I1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555378061
Side View
Table 55.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.5%

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 2
Current: £1,423 GBP|Low: £276 GBP|High: £1,423 GBP|Avg: £554 GBP|+8.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2£276 GBP
Retailer 5£315 GBP
Retailer 3£371 GBP
Retailer 4£400 GBP
NZ Jewellers£1,423 GBP

42 data points across 5 retailers

5 retailers£276 GBP to £400 GBP

A
Cheapest Retailer
-
£276 GBP
₹35,315 INR
B+
Retailer 2
-
£315 GBP
HK$3,300 HKD
View
B+
Retailer 3
-
£371 GBP
$498 USD
View
B+
Retailer 4
-
£400 GBP
$537 USD
View
Most Expensive
NZ Jewellers
5bb06ac1-b3a2-4b9c-81d3-296ff4deebc9 · Oct 30
£1,423 GBP
$1,910 USD
View
Price under review
4 more retailers have this diamond
Prices start from £276 GBPSave up to £124 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
£276 GBP