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Marquise|Natural|GIA

0.50ct K SI1 Marquise Natural Diamond

GD • K/SI1 • GIA 2567370843

Certificate GIA 2567370843

Diamond specifications and retailer prices

From $604 AUD
As of November 1, 2026
Save $130 AUD (18%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $734 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 2567370843. Listed at 3 retailers as of November 1, 2026, with prices from $604 to $734, a $130 spread on the same certified stone. 77 Diamonds lists it at $734. 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
PolishGood
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2567370843
Dimensions7.44 × 4.14 × 2.76 mm
L/W Ratio1.80
Culet sizeNone
Key to symbols
Feather
Top View
7.44 mm4.14 mm0.50 ctK / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceStrong
CertificateGIA 2567370843
Side View
Table 58.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 66.7%

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: $734 AUD|Low: $589 AUD|High: $746 AUD|Avg: $649 AUD|+6.3%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2$604 AUD
Retailer 3$637 AUD
77 Diamonds$734 AUD

39 data points across 3 retailers

3 retailers$604 AUD to $734 AUD

B+
Cheapest Retailer
-
$604 AUD
B+
Retailer 2
-
$637 AUD
View
Most Expensive
B
77 Diamonds
MQCPTECKPSXZ · Nov 6
$734 AUD
£397 GBP
View
2 more retailers have this diamond
Prices start from $604 AUDSave up to $130 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
$604 AUD