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Marquise|Natural|GIA

0.50ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 6555715955

Certificate GIA 6555715955

Diamond specifications and retailer prices

From $543 AUD
As of November 6, 2026
Save $1,797 AUD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,340 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555715955. Listed at 15 retailers as of November 5, 2026, with prices from $543 to $2,340, a $1,797 spread on the same certified stone. NZ Jewellers lists it at $2,340. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555715955
Dimensions8.06 × 4.22 × 2.59 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
8.06 mm4.22 mm0.50 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555715955
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,340 AUD|Low: $543 AUD|High: $2,375 AUD|Avg: $1,023 AUD|-1.5%
NZ Jewellers
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
November 6, 2026
Retailer 2$543 AUD
Retailer 6$633 AUD
Retailer 11$747 AUD
Retailer 5$779 AUD
Retailer 3$803 AUD
Retailer 12$803 AUD
Retailer 4$862 AUD
Retailer 10$862 AUD
Retailer 8$886 AUD
Retailer 9$920 AUD
Retailer 7$927 AUD
Retailer 15$937 AUD
Retailer 14$1,116 AUD
Retailer 13$1,722 AUD
NZ Jewellers$2,340 AUD

24 data points across 15 retailers

15 retailers$543 AUD to $2,340 AUD

A
Cheapest Retailer
-
$543 AUD
B+
Retailer 2
-
$633 AUD
View
B+
Retailer 3
-
$747 AUD
View
B+
Retailer 4
-
$779 AUD
View
Retailer 5
-
$803 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$803 AUD
View
B+
Retailer 7
-
$862 AUD
View
B+
Retailer 8
-
$862 AUD
View
B+
Retailer 9
-
$886 AUD
View
B+
Retailer 10
-
$920 AUD
View
B+
Retailer 11
-
$927 AUD
View
B+
Retailer 12
-
$937 AUD
View
B
Retailer 13
-
$1,116 AUD
View
B
Retailer 14
-
$1,722 AUD
View
Most Expensive
C
NZ Jewellers
dffc7c84-d095-4742-8a74-67799d08f478 · Nov 5
$2,340 AUD
$1,608 USD
View
14 more retailers have this diamond
Prices start from $543 AUDSave up to $1,797 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.

A
0.50ct Marquise
$543 AUD