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Marquise|Natural|IGI

0.51ct I SI2 Marquise Natural Diamond

GD • I/SI2 • IGI 649481398

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 649481398

Diamond specifications and retailer prices

From $563 CAD
As of November 5, 2026
Save $1,595 CAD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,158 CAD 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI 649481398. Listed at 13 retailers as of November 5, 2026, with prices from $563 to $2,158, a $1,595 spread on the same certified stone. NZ Jewellers lists it at $2,158. 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
I
Color
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.2°
Pavilion angle36.7°
OriginNatural
Grading LabIGI
CertificateIGI 649481398
Dimensions9.00 × 4.02 × 2.32 mm
L/W Ratio2.24
Girdle conditionFaceted
Culet sizePointed
Top View
9.00 mm4.02 mm0.51 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 649481398
Side View
Table 64.0%Crown 38.2°Girdle: STK-VTKPavilion 36.7°Culet: NoneDepth 57.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,158 CAD|Low: $563 CAD|High: $2,158 CAD|Avg: $858 CAD
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 6, 2026
Retailer 3$563 CAD
Retailer 9$587 CAD
Retailer 4$606 CAD
Retailer 10$606 CAD
Retailer 12$615 CAD
Retailer 14$649 CAD
Retailer 2$668 CAD
Retailer 5$744 CAD
Retailer 11$781 CAD
Retailer 13$786 CAD
Retailer 6$845 CAD
Retailer 7$1,013 CAD
Retailer 8$1,297 CAD
NZ Jewellers$2,158 CAD

42 data points across 14 retailers

13 retailers$563 CAD to $2,158 CAD

Retailer 1
-
$563 CAD
Price last confirmed 53 days ago
B+
Retailer 2
-
$563 CAD
View
B+
Retailer 3
-
$587 CAD
View
Retailer 4
-
$606 CAD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$606 CAD
View
B+
Retailer 6
-
$649 CAD
View
B+
Retailer 7
-
$668 CAD
View
B+
Retailer 8
-
$744 CAD
View
B+
Retailer 9
-
$781 CAD
View
B+
Retailer 10
-
$786 CAD
View
B
Retailer 11
-
$1,013 CAD
View
B
Retailer 12
-
$1,297 CAD
View
Most Expensive
C
NZ Jewellers
dc731d7a-b765-4572-94a9-9777cff5c7f0 · Nov 5
$2,158 CAD
$1,545 USD
View
12 more retailers have this diamond
Prices start from $563 CADSave up to $1,595 CAD

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.

B+
0.51ct Marquise
$563 CAD