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Marquise|Natural|GIA

0.50ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 1563377449

Certificate GIA 1563377449

Diamond specifications and retailer prices

From $671 AUD
As of November 1, 2026
Save $153 AUD (19%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $824 AUD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1563377449. Listed at 2 retailers as of November 1, 2026, with prices from $671 to $824, a $153 spread on the same certified stone. 77 Diamonds lists it at $824. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563377449
Dimensions8.72 × 3.93 × 2.50 mm
L/W Ratio2.22
Culet sizeNone
Key to symbols
Feather
Top View
8.72 mm3.93 mm0.50 ctK / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1563377449
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCuletDepth 63.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $824 AUD|Low: $657 AUD|High: $832 AUD|Avg: $729 AUD|+7.1%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2$671 AUD
77 Diamonds$824 AUD

39 data points across 2 retailers

2 retailers$671 AUD to $824 AUD

B+
Cheapest Retailer
-
$671 AUD
Most Expensive
B
77 Diamonds
MQCPSK3V8HXQ · Nov 6
$824 AUD
£454 GBP
View
1 more retailer has this diamond
Prices start from $671 AUDSave up to $153 AUD

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
$671 AUD