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Marquise|Natural|IGI

0.50ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 815673837

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815673837

Diamond specifications and retailer prices

From $494 AUD
₹32,959 INR
As of October 31, 2026
Save $1,027 AUD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,523 AUD at NZ Jewellers · As of November 3, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815673837. Listed at 15 retailers as of October 31, 2026, with a 208% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.3°
Pavilion angle38.2°
OriginNatural
Grading LabIGI
CertificateIGI 815673837
Dimensions8.49 × 4.19 × 2.44 mm
L/W Ratio2.03
Girdle conditionFaceted
Top View
8.49 mm4.19 mm0.50 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 815673837
Side View
Table 61.0%Crown 38.3°Girdle: MED-THKPavilion 38.2°Culet: NoneDepth 58.2%

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: Oct 31
Current: $2,523 AUD|Low: $493 AUD|High: $2,523 AUD|Avg: $945 AUD
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 3, 2026
Retailer 11$494 AUD
Retailer 6$606 AUD
Retailer 3$658 AUD
Retailer 14$709 AUD
Retailer 15$709 AUD
Retailer 12$756 AUD
Retailer 4$759 AUD
Retailer 8$808 AUD
Retailer 7$846 AUD
Retailer 2$852 AUD
Retailer 5$898 AUD
Retailer 9$912 AUD
Retailer 13$1,016 AUD
Retailer 10$1,520 AUD
NZ Jewellers$2,523 AUD

27 data points across 15 retailers

15 retailers$494 AUD to $1,520 AUD

A
Cheapest Retailer
-
$494 AUD
₹32,959 INR
B+
Retailer 2
-
$606 AUD
$425 USD
View
Final sale: no returns
B+
Retailer 3
-
$658 AUD
$461 USD
View
B+
Retailer 4
-
$709 AUD
$497 USD
View
B+
Retailer 5
-
$709 AUD
$497 USD
View
B+
Retailer 6
-
$756 AUD
$530 USD
View
B+
Retailer 7
-
$759 AUD
$532 USD
View
B+
Retailer 8
-
$808 AUD
£446 GBP
View
B+
Retailer 9
-
$846 AUD
$593 USD
View
B+
Retailer 10
-
$852 AUD
£470 GBP
View
B+
Retailer 11
-
$898 AUD
$629 USD
View
B+
Retailer 12
-
$912 AUD
€609 EUR
View
B
Retailer 13
-
$1,016 AUD
ZAR 11,504 ZAR
View
B
Retailer 14
-
$1,520 AUD
£839 GBP
View
Most Expensive
NZ Jewellers
6d3cfa28-6dc7-488f-a65b-f9502d5760b2 · Nov 3
$2,523 AUD
$1,768 USD
View
Price under review
14 more retailers have this diamond
Prices start from $494 AUDSave up to $1,027 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
$494 AUD