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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2556716912

Certificate GIA 2556716912

Diamond specifications and retailer prices

From €368 EUR
₹39,302 INR
As of November 2, 2026
Save €773 EUR (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,550 EUR at NZ Jewellers · As of October 3, 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 2556716912. Listed at 17 retailers as of November 2, 2026, with a 210% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556716912
Dimensions7.93 × 4.17 × 2.67 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
7.93 mm4.17 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556716912
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.2%

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 2
Current: €368 EUR|Low: €313 EUR|High: €1,175 EUR|Avg: €570 EUR|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 1€368 EUR
Retailer 9€422 EUR
Retailer 2€424 EUR
Retailer 8€456 EUR
Retailer 7€492 EUR
Retailer 10€520 EUR
Retailer 3€590 EUR
Retailer 4€611 EUR
Retailer 6€688 EUR
Retailer 5€1,141 EUR

31 data points across 10 retailers

17 retailers€368 EUR to €1,141 EUR

A
Cheapest Retailer
-
€368 EUR
₹39,302 INR
A
Retailer 2
-
€422 EUR
HK$3,700 HKD
View
A
Retailer 3
-
€424 EUR
$475 USD
View
A
Retailer 4
-
€456 EUR
$511 USD
View
Final sale: no returns
Retailer 5
-
€490 EUR
$550 USD
View
Price last confirmed 41 days ago
A
Retailer 6
-
€492 EUR
SGD 745 SGD
View
Retailer 7
-
€495 EUR
$555 USD
View
Price last confirmed 25 days ago
Retailer 8
-
€520 EUR
SGD 788 SGD
View
Price last confirmed 7 days ago
Retailer 9
-
€542 EUR
$608 USD
View
Price last confirmed 32 days ago
Retailer 10
-
€565 EUR
$634 USD
View
Price last confirmed 41 days ago
Retailer 11
-
€571 EUR
$640 USD
View
Price last confirmed 24 days ago
B+
Retailer 12
-
€590 EUR
£521 GBP
View
B+
Retailer 13
-
€611 EUR
£540 GBP
View
B+
Retailer 14
-
€688 EUR
$772 USD
View
B
Retailer 15
-
€1,141 EUR
£1,008 GBP
View
Retailer 16
-
€1,537 EUR
$1,724 USD
View
Price last confirmed 42 days ago
Most Expensive
NZ Jewellers
c39abb66-5349-4569-9cd2-eb196732ba02 · Oct 3
€1,550 EUR
$1,739 USD
View
Price last confirmed 30 days ago
16 more retailers have this diamond
Prices start from €368 EURSave up to €773 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
€368 EUR