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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 $443 SGD
₹32,959 INR
As of October 31, 2026
Save $920 SGD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,261 SGD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,261 SGD|Low: $441 SGD|High: $2,261 SGD|Avg: $847 SGD
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$443 SGD
Retailer 6$544 SGD
Retailer 3$590 SGD
Retailer 14$636 SGD
Retailer 15$636 SGD
Retailer 12$678 SGD
Retailer 4$680 SGD
Retailer 8$724 SGD
Retailer 7$758 SGD
Retailer 2$763 SGD
Retailer 5$804 SGD
Retailer 9$818 SGD
Retailer 13$911 SGD
Retailer 10$1,363 SGD
NZ Jewellers$2,261 SGD

27 data points across 15 retailers

15 retailers$443 SGD to $1,363 SGD

A
Cheapest Retailer
-
$443 SGD
₹32,959 INR
B+
Retailer 2
-
$544 SGD
$425 USD
View
Final sale: no returns
B+
Retailer 3
-
$590 SGD
$461 USD
View
B+
Retailer 4
-
$636 SGD
$497 USD
View
B+
Retailer 5
-
$636 SGD
$497 USD
View
B+
Retailer 6
-
$678 SGD
$530 USD
View
B+
Retailer 7
-
$680 SGD
$532 USD
View
B+
Retailer 8
-
$724 SGD
£446 GBP
View
B+
Retailer 9
-
$758 SGD
$593 USD
View
B+
Retailer 10
-
$763 SGD
£470 GBP
View
B+
Retailer 11
-
$804 SGD
$629 USD
View
B+
Retailer 12
-
$818 SGD
€609 EUR
View
B
Retailer 13
-
$911 SGD
ZAR 11,504 ZAR
View
B
Retailer 14
-
$1,363 SGD
£839 GBP
View
Most Expensive
NZ Jewellers
6d3cfa28-6dc7-488f-a65b-f9502d5760b2 · Nov 3
$2,261 SGD
$1,768 USD
View
Price under review
14 more retailers have this diamond
Prices start from $443 SGDSave up to $920 SGD

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
$443 SGD