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Marquise|Natural|IGI

0.51ct G SI2 Marquise Natural Diamond

VG • G/SI2 • IGI 815673453

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815673453

Diamond specifications and retailer prices

From €440 EUR
₹46,991 INR
As of November 2, 2026
Save €1,387 EUR (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,827 EUR 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 815673453. Listed at 12 retailers as of October 30, 2026, with prices from €440 to €1,827, a €1,387 spread on the same certified stone. NZ Jewellers lists it at €1,827. 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
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.6°
OriginNatural
Grading LabIGI
CertificateIGI 815673453
Dimensions7.82 × 4.19 × 2.67 mm
L/W Ratio1.87
Girdle conditionFaceted
Top View
7.82 mm4.19 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815673453
Side View
Table 57.0%Crown 33.3°Girdle: MED-THKPavilion 39.6°Culet: NoneDepth 63.7%

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 2
Current: €1,827 EUR|Low: €440 EUR|High: €1,892 EUR|Avg: €807 EUR|-3.4%
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
November 2, 2026
Retailer 2€440 EUR
Retailer 13€537 EUR
Retailer 9€582 EUR
Retailer 11€582 EUR
Retailer 10€605 EUR
Retailer 12€672 EUR
Retailer 4€700 EUR
Retailer 5€704 EUR
Retailer 3€717 EUR
Retailer 8€730 EUR
Retailer 6€794 EUR
Retailer 7€1,345 EUR
NZ Jewellers€1,827 EUR

41 data points across 13 retailers

12 retailers€440 EUR to €1,827 EUR

A
Cheapest Retailer
-
€440 EUR
₹46,991 INR
B+
Retailer 2
-
€537 EUR
$602 USD
View
Final sale: no returns
B+
Retailer 3
-
€582 EUR
$653 USD
View
B+
Retailer 4
-
€582 EUR
$653 USD
View
B+
Retailer 5
-
€605 EUR
$679 USD
View
B+
Retailer 6
-
€672 EUR
$754 USD
View
B+
Retailer 7
-
€700 EUR
$785 USD
View
B+
Retailer 8
-
€717 EUR
$804 USD
View
B+
Retailer 9
-
€730 EUR
£645 GBP
View
B+
Retailer 10
-
€794 EUR
View
B
Retailer 11
-
€1,345 EUR
£1,188 GBP
View
Most Expensive
C
NZ Jewellers
e02205bb-7729-4121-9a6a-7e8c4dbfe1db · Oct 30
€1,827 EUR
$2,049 USD
View
11 more retailers have this diamond
Prices start from €440 EURSave up to €1,387 EUR

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
€440 EUR