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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6551294218

Certificate GIA 6551294218

Diamond specifications and retailer prices

From €751 EUR
$842 USD
As of November 1, 2026
Save €790 EUR (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,541 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551294218. Listed at 18 retailers as of November 1, 2026, with prices from €751 to €1,541, a €790 spread on the same certified stone. MOH London lists it at €1,541. 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
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.67°
OriginNatural
Grading LabGIA
CertificateGIA 6551294218
Dimensions8.23 × 4.25 × 2.55 mm
L/W Ratio1.94
Key to symbols
Feather
Top View
8.23 mm4.25 mm0.50 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551294218
Side View
Table 64.0%Crown 32.67°Girdle: STK-VTKPavilionCulet: NoneDepth 60.0%

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: Nov 1
Current: €1,541 EUR|Low: €711 EUR|High: €2,638 EUR|Avg: €1,107 EUR|-1.2%
MOH London
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 18€751 EUR
Retailer 15€776 EUR
Retailer 8€841 EUR
Retailer 10€841 EUR
Retailer 16€850 EUR
Retailer 4€874 EUR
Retailer 5€912 EUR
Retailer 6€960 EUR
Retailer 9€971 EUR
Retailer 17€976 EUR
Retailer 14€983 EUR
Retailer 11€985 EUR
Retailer 2€1,033 EUR
Retailer 12€1,184 EUR
Retailer 3€1,265 EUR
Retailer 13€1,298 EUR
MOH London€1,541 EUR
Retailer 7€2,638 EUR

36 data points across 18 retailers

18 retailers€751 EUR to €1,541 EUR

B+
Cheapest Retailer
-
€751 EUR
$842 USD
B+
Retailer 2
-
€776 EUR
$870 USD
View
Final sale: no returns
B+
Retailer 3
-
€841 EUR
$943 USD
View
B+
Retailer 4
-
€841 EUR
$943 USD
View
B
Retailer 5
-
€850 EUR
$953 USD
View
B
Retailer 6
-
€874 EUR
$980 USD
View
B+
Retailer 7
-
€912 EUR
$1,023 USD
View
B
Retailer 8
-
€960 EUR
$1,077 USD
View
B
Retailer 9
-
€971 EUR
$1,089 USD
View
B
Retailer 10
-
€976 EUR
$1,095 USD
View
B
Retailer 11
-
€983 EUR
$1,102 USD
View
B
Retailer 12
-
€985 EUR
£870 GBP
View
B
Retailer 13
-
€1,033 EUR
£912 GBP
View
B
Retailer 14
-
€1,184 EUR
View
Retailer 15
-
€1,265 EUR
A$2,183 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
€1,298 EUR
ZAR 23,528 ZAR
View
Most Expensive
B
MOH London
C022C720D · Nov 1
€1,541 EUR
£1,361 GBP
View
16 more retailers have this diamond
Prices start from €751 EURSave up to €790 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.

B+
0.50ct Marquise
€751 EUR