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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 $975 NZD
SGD 741 SGD
As of October 31, 2026
Save $2,667 NZD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,642 NZD 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 $975 to $3,642, a $2,667 spread on the same certified stone. NZ Jewellers lists it at $3,642. 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: $3,642 NZD|Low: $975 NZD|High: $3,707 NZD|Avg: $1,610 NZD|-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$975 NZD
Retailer 11$1,066 NZD
Retailer 12$1,159 NZD
Retailer 5$1,164 NZD
Retailer 2$1,203 NZD
Retailer 14$1,306 NZD
Retailer 10$1,332 NZD
Retailer 8$1,345 NZD
Retailer 4$1,459 NZD
Retailer 9$1,547 NZD
Retailer 6$1,755 NZD
Retailer 3$1,793 NZD
Retailer 7$2,677 NZD
NZ Jewellers$3,642 NZD

21 data points across 14 retailers

14 retailers$975 NZD to $3,642 NZD

A
Cheapest Retailer
-
$975 NZD
SGD 741 SGD
A
Retailer 2
-
$1,066 NZD
$600 USD
View
A
Retailer 3
-
$1,159 NZD
$652 USD
View
A
Retailer 4
-
$1,164 NZD
$655 USD
View
A
Retailer 5
-
$1,203 NZD
$677 USD
View
A
Retailer 6
-
$1,306 NZD
$735 USD
View
B+
Retailer 7
-
$1,332 NZD
£590 GBP
View
A
Retailer 8
-
$1,345 NZD
£596 GBP
View
B+
Retailer 9
-
$1,459 NZD
£646 GBP
View
B+
Retailer 10
-
$1,547 NZD
€829 EUR
View
B+
Retailer 11
-
$1,755 NZD
$987 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$1,793 NZD
ZAR 16,295 ZAR
View
B
Retailer 13
-
$2,677 NZD
£1,186 GBP
View
Most Expensive
B
NZ Jewellers
2af8094a-74d6-4ef5-87f1-7c20b67b34ed · Oct 30
$3,642 NZD
$2,049 USD
View
13 more retailers have this diamond
Prices start from $975 NZDSave up to $2,667 NZD

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
$975 NZD