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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 2566502812

Certificate GIA 2566502812

Diamond specifications and retailer prices

From $731 AUD
HK$4,000 HKD
As of November 1, 2026
Save $473 AUD (39%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,203 AUD at Yorxs · As of November 2, 2026
View at Yorxs

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566502812. Listed at 6 retailers as of November 1, 2026, with prices from $731 to $1,203, a $473 spread on the same certified stone. Yorxs lists it at $1,203. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566502812
Dimensions8.29 × 3.99 × 2.59 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
8.29 mm3.99 mm0.50 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566502812
Side View
Table 57.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 64.9%

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: $870 AUD|Low: $731 AUD|High: $1,203 AUD|Avg: $912 AUD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 2, 2026
Retailer 2$731 AUD
Retailer 4$808 AUD
Retailer 1$870 AUD
Retailer 3$905 AUD
Yorxs$1,203 AUD

8 data points across 5 retailers

6 retailers$731 AUD to $1,203 AUD

B+
Cheapest Retailer
-
$731 AUD
HK$4,000 HKD
B+
Retailer 2
-
$808 AUD
$566 USD
View
Final sale: no returns
Retailer 3
-
$870 AUD
SGD 824 SGD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$870 AUD
$610 USD
View
Retailer 5
-
$905 AUD
SGD 857 SGD
View
Price last confirmed 12 days ago
Most Expensive
B
Yorxs
622888414 · Nov 2
$1,203 AUD
€803 EUR
View
5 more retailers have this diamond
Prices start from $731 AUDSave up to $473 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
$731 AUD