CaratHunter
Plans
Marquise|Natural|IGI

0.51ct K SI2 Marquise Natural Diamond

GD • K/SI2 • IGI 201623068

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 201623068

Diamond specifications and retailer prices

From $1,587 NZD
As of November 6, 2026
Save $850 NZD (35%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,438 NZD at MOH London · As of November 4, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a standard cut grade and certified by IGI 201623068. Listed at 2 retailers as of November 4, 2026, with prices from $1,587 to $2,438, a $850 spread on the same certified stone. MOH London lists it at $2,438. 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
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceFaint
Crown angle30.7°
Pavilion angle42.2°
OriginNatural
Grading LabIGI
CertificateIGI 201623068
Dimensions6.81 × 4.24 × 2.91 mm
L/W Ratio1.61
Girdle conditionFaceted
Culet sizeMedium
Top View
6.81 mm4.24 mm0.51 ctK / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceFaint
CertificateIGI 201623068
Side View
Table 55.0%Crown 30.7°Girdle: THK-VTKPavilion 42.2°Culet: MediumDepth 68.6%

Caratlytics Score

How it works →
C
Average
Compare with similar diamonds
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,438 NZD|Low: $1,357 NZD|High: $2,470 NZD|Avg: $1,799 NZD|-0.4%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$1,357 NZD
Retailer 2$1,587 NZD
MOH London$2,438 NZD

21 data points across 3 retailers

2 retailers$1,587 NZD to $2,438 NZD

C
Cheapest Retailer
-
$1,587 NZD
Most Expensive
C
MOH London
5237B8E52 · Nov 4
$2,438 NZD
£1,064 GBP
View
1 more retailer has this diamond
Prices start from $1,587 NZDSave up to $850 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.

C
0.51ct Marquise
$1,587 NZD