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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 1553995737

Certificate GIA 1553995737

Diamond specifications and retailer prices

From €411 EUR
HK$3,600 HKD
As of November 1, 2026
Save €1,126 EUR (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,537 EUR 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553995737. Listed at 14 retailers as of October 30, 2026, with prices from €411 to €1,537, a €1,126 spread on the same certified stone. NZ Jewellers lists it at €1,537. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1553995737
Dimensions7.77 × 4.33 × 2.61 mm
L/W Ratio1.79
Key to symbols
Twinning Wisp, Feather
Top View
7.77 mm4.33 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 1553995737
Side View
Table 62.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 60.2%

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: €1,537 EUR|Low: €399 EUR|High: €1,537 EUR|Avg: €663 EUR|+3.7%
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
November 2, 2026
Retailer 3€411 EUR
Retailer 14€451 EUR
Retailer 11€490 EUR
Retailer 5€512 EUR
Retailer 12€528 EUR
Retailer 13€528 EUR
Retailer 6€565 EUR
Retailer 10€565 EUR
Retailer 2€585 EUR
Retailer 4€613 EUR
Retailer 7€619 EUR
Retailer 9€728 EUR
Retailer 8€1,132 EUR
NZ Jewellers€1,537 EUR

31 data points across 14 retailers

14 retailers€411 EUR to €1,537 EUR

A
Cheapest Retailer
-
€411 EUR
HK$3,600 HKD
B+
Retailer 2
-
€451 EUR
$506 USD
View
Final sale: no returns
A
Retailer 3
-
€490 EUR
$550 USD
View
B+
Retailer 4
-
€512 EUR
SGD 776 SGD
View
B+
Retailer 5
-
€528 EUR
$592 USD
View
A
Retailer 6
-
€528 EUR
$592 USD
View
B+
Retailer 7
-
€565 EUR
$634 USD
View
Retailer 8
-
€565 EUR
$634 USD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
€585 EUR
£517 GBP
View
B+
Retailer 10
-
€613 EUR
$688 USD
View
B+
Retailer 11
-
€619 EUR
£547 GBP
View
B
Retailer 12
-
€728 EUR
View
B
Retailer 13
-
€1,132 EUR
£1,000 GBP
View
Most Expensive
B
NZ Jewellers
f71baf55-1e42-41d2-9725-8ffb66d927e9 · Oct 30
€1,537 EUR
$1,724 USD
View
13 more retailers have this diamond
Prices start from €411 EURSave up to €1,126 EUR

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
€411 EUR