CaratHunter
Plans
Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6551294218

Certificate GIA 6551294218

Diamond specifications and retailer prices

From $842 USD
As of November 1, 2026
Save $886 USD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,728 USD 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 $842 to $1,728, a $886 spread on the same certified stone. MOH London lists it at $1,728. 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: $1,728 USD|Low: $798 USD|High: $2,959 USD|Avg: $1,241 USD|-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$842 USD
Retailer 15$870 USD
Retailer 8$943 USD
Retailer 10$943 USD
Retailer 16$953 USD
Retailer 4$980 USD
Retailer 5$1,023 USD
Retailer 6$1,077 USD
Retailer 9$1,089 USD
Retailer 17$1,095 USD
Retailer 14$1,102 USD
Retailer 11$1,104 USD
Retailer 2$1,158 USD
Retailer 12$1,328 USD
Retailer 3$1,419 USD
Retailer 13$1,456 USD
MOH London$1,728 USD
Retailer 7$2,959 USD

36 data points across 18 retailers

18 retailers$842 USD to $1,728 USD

B+
Cheapest Retailer
-
$842 USD
B+
Retailer 2
-
$870 USD
View
Final sale: no returns
B+
Retailer 3
-
$943 USD
View
B+
Retailer 4
-
$943 USD
View
B
Retailer 5
-
$953 USD
View
B
Retailer 6
-
$980 USD
View
B+
Retailer 7
-
$1,023 USD
View
B
Retailer 8
-
$1,077 USD
View
B
Retailer 9
-
$1,089 USD
View
B
Retailer 10
-
$1,095 USD
View
B
Retailer 11
-
$1,102 USD
View
B
Retailer 12
-
$1,104 USD
£870 GBP
View
B
Retailer 13
-
$1,158 USD
£912 GBP
View
B
Retailer 14
-
$1,328 USD
€1,265 EUR
View
Retailer 15
-
$1,419 USD
A$2,183 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$1,456 USD
ZAR 23,528 ZAR
View
Most Expensive
B
MOH London
C022C720D · Nov 1
$1,728 USD
£1,361 GBP
View
16 more retailers have this diamond
Prices start from $842 USDSave up to $886 USD

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
$842 USD