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Marquise|Natural|IGI

0.51ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 754532759

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 754532759

Diamond specifications and retailer prices

From $678 SGD
$530 USD
As of November 1, 2026
Save $1,449 SGD (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,127 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct 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 754532759. Listed at 11 retailers as of October 30, 2026, with prices from $678 to $2,127, a $1,449 spread on the same certified stone. NZ Jewellers lists it at $2,127. 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

0.51
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.5°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 754532759
Dimensions8.22 × 4.13 × 2.61 mm
L/W Ratio1.99
Girdle conditionFaceted
Top View
8.22 mm4.13 mm0.51 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 754532759
Side View
Table 60.0%Crown 32.5°Girdle: THN-VTKPavilion 41.5°Culet: NoneDepth 63.2%

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: $832 SGD|Low: $730 SGD|High: $1,585 SGD|Avg: $968 SGD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 7$730 SGD
Retailer 8$755 SGD
Retailer 6$774 SGD
Retailer 1$832 SGD
Retailer 2$884 SGD
Retailer 3$1,013 SGD
Retailer 4$1,046 SGD
Retailer 5$1,574 SGD

42 data points across 8 retailers

11 retailers$678 SGD to $2,127 SGD

B+
Cheapest Retailer
-
$678 SGD
$530 USD
B+
Retailer 2
-
$730 SGD
$571 USD
View
B+
Retailer 3
-
$730 SGD
$571 USD
View
B+
Retailer 4
-
$774 SGD
$605 USD
View
B+
Retailer 5
-
$783 SGD
$612 USD
View
B+
Retailer 6
-
$832 SGD
£512 GBP
View
B
Retailer 7
-
$884 SGD
£544 GBP
View
B
Retailer 8
-
$1,013 SGD
€754 EUR
View
B
Retailer 9
-
$1,046 SGD
ZAR 13,219 ZAR
View
C
Retailer 10
-
$1,574 SGD
£969 GBP
View
Most Expensive
C
NZ Jewellers
947aa185-d648-4229-a6f5-ea6f8c1825e0 · Oct 30
$2,127 SGD
$1,663 USD
View
10 more retailers have this diamond
Prices start from $678 SGDSave up to $1,449 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.

B+
0.51ct Marquise
$678 SGD