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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 $567 CAD
As of November 5, 2026
Save $1,606 CAD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,173 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 $567 to $2,173, a $1,606 spread on the same certified stone. NZ Jewellers lists it at $2,173. 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: $2,173 CAD|Low: $567 CAD|High: $2,173 CAD|Avg: $864 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$567 CAD
Retailer 9$591 CAD
Retailer 4$610 CAD
Retailer 10$610 CAD
Retailer 12$619 CAD
Retailer 14$654 CAD
Retailer 2$672 CAD
Retailer 5$750 CAD
Retailer 11$786 CAD
Retailer 13$792 CAD
Retailer 6$851 CAD
Retailer 7$1,020 CAD
Retailer 8$1,307 CAD
NZ Jewellers$2,173 CAD

42 data points across 14 retailers

13 retailers$567 CAD to $2,173 CAD

Retailer 1
-
$567 CAD
Price last confirmed 53 days ago
B+
Retailer 2
-
$567 CAD
View
B+
Retailer 3
-
$591 CAD
View
Retailer 4
-
$610 CAD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$610 CAD
View
B+
Retailer 6
-
$654 CAD
View
B+
Retailer 7
-
$672 CAD
View
B+
Retailer 8
-
$750 CAD
View
B+
Retailer 9
-
$786 CAD
View
B+
Retailer 10
-
$792 CAD
View
B
Retailer 11
-
$1,020 CAD
View
B
Retailer 12
-
$1,307 CAD
View
Most Expensive
C
NZ Jewellers
dc731d7a-b765-4572-94a9-9777cff5c7f0 · Nov 5
$2,173 CAD
$1,545 USD
View
12 more retailers have this diamond
Prices start from $567 CADSave up to $1,606 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
$567 CAD