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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 7536520006

Certificate GIA 7536520006

Diamond specifications and retailer prices

From £406 GBP
$545 USD
As of October 28, 2026
Save £833 GBP (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,239 GBP at NZ Jewellers · As of October 27, 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 7536520006. Listed at 12 retailers as of October 27, 2026, with prices from £406 to £1,239, a £833 spread on the same certified stone. NZ Jewellers lists it at £1,239. 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
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7536520006
Dimensions8.77 × 4.09 × 2.44 mm
L/W Ratio2.14
Key to symbols
Crystal
Top View
8.77 mm4.09 mm0.50 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 7536520006
Side View
Table 54.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.7%

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 28
Current: £1,239 GBP|Low: £334 GBP|High: £1,239 GBP|Avg: £565 GBP
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
October 28, 2026
Retailer 9£364 GBP
Retailer 3£395 GBP
Retailer 10£406 GBP
Retailer 5£426 GBP
Retailer 11£426 GBP
Retailer 4£456 GBP
Retailer 12£456 GBP
Retailer 6£474 GBP
Retailer 2£493 GBP
Retailer 13£523 GBP
Retailer 7£587 GBP
Retailer 8£913 GBP
NZ Jewellers£1,239 GBP

41 data points across 13 retailers

12 retailers£406 GBP to £1,239 GBP

Retailer 1
-
£395 GBP
$530 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
£406 GBP
$545 USD
View
Retailer 3
-
£426 GBP
$571 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£426 GBP
$571 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£456 GBP
$612 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£456 GBP
$612 USD
View
B+
Retailer 7
-
£474 GBP
View
B+
Retailer 8
-
£493 GBP
View
Retailer 9
-
£523 GBP
$702 USD
View
Price last confirmed 7 days ago
B
Retailer 10
-
£587 GBP
€750 EUR
View
Retailer 11
-
£913 GBP
View
Price last confirmed 7 days ago
Most Expensive
C
NZ Jewellers
8605db2d-c68b-4fa8-8b6b-34542580c7b8 · Oct 27
£1,239 GBP
$1,663 USD
View
11 more retailers have this diamond
Prices start from £406 GBPSave up to £833 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
£406 GBP