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Marquise|Natural|GIA

0.50ct J SI2 Marquise Natural Diamond

GD • J/SI2 • GIA 2556199456

Certificate GIA 2556199456

Diamond specifications and retailer prices

From £313 GBP
MYR 1,708 MYR
As of October 30, 2026
Save £91 GBP (23%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £404 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556199456. Listed at 3 retailers as of October 30, 2026, with prices from £313 to £404, a £91 spread on the same certified stone. 77 Diamonds lists it at £404. 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
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556199456
Dimensions8.02 × 4.09 × 2.66 mm
L/W Ratio1.96
Top View
8.02 mm4.09 mm0.50 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2556199456
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £404 GBP|Low: £267 GBP|High: £404 GBP|Avg: £332 GBP|+3.7%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£313 GBP
Retailer 3£323 GBP
77 Diamonds£404 GBP

40 data points across 3 retailers

3 retailers£313 GBP to £404 GBP

B+
Cheapest Retailer
-
£313 GBP
MYR 1,708 MYR
B+
Retailer 2
-
£323 GBP
$433 USD
View
Final sale: no returns
Most Expensive
B+
77 Diamonds
MQCPWAFGV6ZY · Nov 2
£404 GBP
View
2 more retailers have this diamond
Prices start from £313 GBPSave up to £91 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.

B+
0.50ct Marquise
£313 GBP