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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 $1,077 SGD
$842 USD
As of November 1, 2026
Save $1,134 SGD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,211 SGD 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 $1,077 to $2,211, a $1,134 spread on the same certified stone. MOH London lists it at $2,211. 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
Colour
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: $2,211 SGD|Low: $1,021 SGD|High: $3,784 SGD|Avg: $1,586 SGD|-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 3, 2026
Retailer 18$1,077 SGD
Retailer 15$1,113 SGD
Retailer 8$1,206 SGD
Retailer 10$1,206 SGD
Retailer 16$1,219 SGD
Retailer 4$1,253 SGD
Retailer 5$1,308 SGD
Retailer 6$1,377 SGD
Retailer 9$1,393 SGD
Retailer 17$1,400 SGD
Retailer 2$1,401 SGD
Retailer 14$1,409 SGD
Retailer 11$1,481 SGD
Retailer 12$1,699 SGD
Retailer 3$1,814 SGD
Retailer 13$1,863 SGD
MOH London$2,211 SGD
Retailer 7$3,784 SGD

36 data points across 18 retailers

18 retailers$1,077 SGD to $2,211 SGD

B+
Cheapest Retailer
-
$1,077 SGD
$842 USD
B+
Retailer 2
-
$1,113 SGD
$870 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,206 SGD
$943 USD
View
B+
Retailer 4
-
$1,206 SGD
$943 USD
View
B
Retailer 5
-
$1,219 SGD
$953 USD
View
B
Retailer 6
-
$1,253 SGD
$980 USD
View
B+
Retailer 7
-
$1,308 SGD
$1,023 USD
View
B
Retailer 8
-
$1,377 SGD
$1,077 USD
View
B
Retailer 9
-
$1,393 SGD
$1,089 USD
View
B
Retailer 10
-
$1,400 SGD
$1,095 USD
View
B
Retailer 11
-
$1,401 SGD
£862 GBP
View
B
Retailer 12
-
$1,409 SGD
$1,102 USD
View
B
Retailer 13
-
$1,481 SGD
£912 GBP
View
B
Retailer 14
-
$1,699 SGD
€1,265 EUR
View
Retailer 15
-
$1,814 SGD
A$2,183 AUD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$1,863 SGD
ZAR 23,528 ZAR
View
Most Expensive
B
MOH London
C022C720D · Nov 1
$2,211 SGD
£1,361 GBP
View
16 more retailers have this diamond
Prices start from $1,077 SGDSave up to $1,134 SGD

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
$1,077 SGD