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Marquise|Natural|IGI

0.50ct G SI2 Marquise Natural Diamond

VG • G/SI2 • IGI 800673801

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 800673801

Diamond specifications and retailer prices

From $752 AUD
As of November 6, 2026
Save $1,808 AUD (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,560 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 800673801. Listed at 12 retailers as of November 5, 2026, with prices from $752 to $2,560, a $1,808 spread on the same certified stone. NZ Jewellers lists it at $2,560. 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
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.3°
Pavilion angle39.4°
OriginNatural
Grading LabIGI
CertificateIGI 800673801
Dimensions9.01 × 3.95 × 2.52 mm
L/W Ratio2.28
Girdle conditionFaceted
Top View
9.01 mm3.95 mm0.50 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 800673801
Side View
Table 51.0%Crown 32.3°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 63.8%

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: $2,560 AUD|Low: $690 AUD|High: $2,714 AUD|Avg: $1,184 AUD|-5.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$752 AUD
Retailer 10$816 AUD
Retailer 8$879 AUD
Retailer 11$879 AUD
Retailer 3$942 AUD
Retailer 2$969 AUD
Retailer 4$1,007 AUD
Retailer 12$1,014 AUD
Retailer 7$1,022 AUD
Retailer 6$1,212 AUD
Retailer 5$1,880 AUD
NZ Jewellers$2,560 AUD

45 data points across 12 retailers

12 retailers$752 AUD to $2,560 AUD

A
Cheapest Retailer
-
$752 AUD
Final sale: no returns
A
Retailer 2
-
$816 AUD
View
A
Retailer 3
-
$879 AUD
View
Retailer 4
-
$879 AUD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$942 AUD
View
A
Retailer 6
-
$969 AUD
View
B+
Retailer 7
-
$1,007 AUD
View
B+
Retailer 8
-
$1,014 AUD
View
B+
Retailer 9
-
$1,022 AUD
View
B+
Retailer 10
-
$1,212 AUD
View
B
Retailer 11
-
$1,880 AUD
View
Most Expensive
B
NZ Jewellers
7363867a-f6cf-4c08-82b2-f9a2b242e147 · Nov 5
$2,560 AUD
$1,759 USD
View
11 more retailers have this diamond
Prices start from $752 AUDSave up to $1,808 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
$752 AUD