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Marquise|Natural|IGI

0.51ct H VS1 Marquise Natural Diamond

VG • H/VS1 • IGI 815656065

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815656065

Diamond specifications and retailer prices

From $782 AUD
SGD 741 SGD
As of October 31, 2026
Save $2,141 AUD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,924 AUD 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 815656065. Listed at 14 retailers as of October 30, 2026, with prices from $782 to $2,924, a $2,141 spread on the same certified stone. NZ Jewellers lists it at $2,924. 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
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle30.8°
Pavilion angle38.4°
OriginNatural
Grading LabIGI
CertificateIGI 815656065
Dimensions8.80 × 4.13 × 2.45 mm
L/W Ratio2.13
Girdle conditionFaceted
Top View
8.80 mm4.13 mm0.51 ctH / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 815656065
Side View
Table 57.0%Crown 30.8°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 59.3%

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: $2,924 AUD|Low: $782 AUD|High: $2,977 AUD|Avg: $1,292 AUD|-1.8%
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
November 2, 2026
Retailer 13$782 AUD
Retailer 11$856 AUD
Retailer 12$930 AUD
Retailer 5$935 AUD
Retailer 2$966 AUD
Retailer 14$1,049 AUD
Retailer 10$1,069 AUD
Retailer 8$1,080 AUD
Retailer 4$1,171 AUD
Retailer 9$1,242 AUD
Retailer 6$1,409 AUD
Retailer 3$1,439 AUD
Retailer 7$2,149 AUD
NZ Jewellers$2,924 AUD

21 data points across 14 retailers

14 retailers$782 AUD to $2,924 AUD

A
Cheapest Retailer
-
$782 AUD
SGD 741 SGD
A
Retailer 2
-
$856 AUD
$600 USD
View
A
Retailer 3
-
$930 AUD
$652 USD
View
A
Retailer 4
-
$935 AUD
$655 USD
View
A
Retailer 5
-
$966 AUD
$677 USD
View
A
Retailer 6
-
$1,049 AUD
$735 USD
View
B+
Retailer 7
-
$1,069 AUD
£590 GBP
View
A
Retailer 8
-
$1,080 AUD
£596 GBP
View
B+
Retailer 9
-
$1,171 AUD
£646 GBP
View
B+
Retailer 10
-
$1,242 AUD
€829 EUR
View
B+
Retailer 11
-
$1,409 AUD
$987 USD
View
B+
Retailer 12
-
$1,439 AUD
ZAR 16,295 ZAR
View
B
Retailer 13
-
$2,149 AUD
£1,186 GBP
View
Most Expensive
B
NZ Jewellers
2af8094a-74d6-4ef5-87f1-7c20b67b34ed · Oct 30
$2,924 AUD
$2,049 USD
View
13 more retailers have this diamond
Prices start from $782 AUDSave up to $2,141 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
0.51ct Marquise
$782 AUD