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Marquise|Natural|IGI

0.51ct K VS1 Marquise Natural Diamond

VG • K/VS1 • IGI 731559808

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 731559808

Diamond specifications and retailer prices

From $434 NZD
As of November 6, 2026
Save $1,814 NZD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,249 NZD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 731559808. Listed at 14 retailers as of November 5, 2026, with prices from $434 to $2,249, a $1,814 spread on the same certified stone. NZ Jewellers lists it at $2,249. 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
K
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle38.8°
OriginNatural
Grading LabIGI
CertificateIGI 731559808
Dimensions8.12 × 4.34 × 2.54 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizePointed
Top View
8.12 mm4.34 mm0.51 ctK / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 731559808
Side View
Table 59.0%Crown 34.7°Girdle: MED-THKPavilion 38.8°Culet: NoneDepth 58.5%

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: Nov 6
Current: $434 NZD|Low: $434 NZD|High: $1,370 NZD|Avg: $873 NZD|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$434 NZD
Retailer 2$676 NZD
Retailer 3$776 NZD
Retailer 4$909 NZD
Retailer 5$978 NZD
Retailer 7$1,096 NZD
Retailer 6$1,356 NZD

31 data points across 7 retailers

14 retailers$434 NZD to $2,249 NZD

A
Cheapest Retailer
-
$434 NZD
Retailer 2
-
$535 NZD
View
Price last confirmed 95 days ago
A
Retailer 3
-
$587 NZD
View
Retailer 4
-
$632 NZD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$655 NZD
View
A
Retailer 6
-
$676 NZD
View
B+
Retailer 7
-
$776 NZD
View
B+
Retailer 8
-
$790 NZD
View
B+
Retailer 9
-
$818 NZD
View
A
Retailer 10
-
$909 NZD
View
B+
Retailer 11
-
$978 NZD
View
B+
Retailer 12
-
$1,096 NZD
View
B+
Retailer 13
-
$1,356 NZD
View
Most Expensive
C
NZ Jewellers
ce013447-d670-4d1b-a8b2-5cb0defe77df · Nov 5
$2,249 NZD
$1,264 USD
View
13 more retailers have this diamond
Prices start from $434 NZDSave up to $1,814 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
$434 NZD