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 $517 USD
As of November 6, 2026
Save $1,242 USD (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,759 USD 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 $517 to $1,759, a $1,242 spread on the same certified stone. NZ Jewellers lists it at $1,759. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,759 USD|Low: $474 USD|High: $1,865 USD|Avg: $814 USD|-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$517 USD
Retailer 10$561 USD
Retailer 8$604 USD
Retailer 11$604 USD
Retailer 3$647 USD
Retailer 2$666 USD
Retailer 4$692 USD
Retailer 12$697 USD
Retailer 7$702 USD
Retailer 6$833 USD
Retailer 5$1,292 USD
NZ Jewellers$1,759 USD

45 data points across 12 retailers

12 retailers$517 USD to $1,759 USD

A
Cheapest Retailer
-
$517 USD
Final sale: no returns
A
Retailer 2
-
$561 USD
View
A
Retailer 3
-
$604 USD
View
Retailer 4
-
$604 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$647 USD
View
A
Retailer 6
-
$666 USD
View
B+
Retailer 7
-
$692 USD
View
B+
Retailer 8
-
$697 USD
View
B+
Retailer 9
-
$702 USD
View
B+
Retailer 10
-
$833 USD
View
B
Retailer 11
-
$1,292 USD
View
Most Expensive
B
NZ Jewellers
7363867a-f6cf-4c08-82b2-f9a2b242e147 · Nov 5
$1,759 USD
View
11 more retailers have this diamond
Prices start from $517 USDSave up to $1,242 USD

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
$517 USD