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Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

GD • E/SI2 • GIA 6515228594

Certificate GIA 6515228594

Diamond specifications and retailer prices

From $1,299 CAD
As of November 1, 2026
Save $1,549 CAD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,804 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 E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6515228594. Listed at 18 retailers as of November 1, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6515228594
Dimensions8.63 × 4.00 × 2.54 mm
L/W Ratio2.16
Top View
8.63 mm4.00 mm0.51 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6515228594
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.4%

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 1
Current: $2,011 CAD|Low: $1,087 CAD|High: $2,891 CAD|Avg: $1,765 CAD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$1,299 CAD
Retailer 5$1,304 CAD
Retailer 6$1,387 CAD
Retailer 2$1,760 CAD
Retailer 1$2,011 CAD
Retailer 3$2,848 CAD

44 data points across 6 retailers

18 retailers$1,299 CAD to $2,848 CAD

B+
Cheapest Retailer
-
$1,299 CAD
B+
Retailer 2
-
$1,304 CAD
View
Final sale: no returns
B
Retailer 3
-
$1,381 CAD
View
B
Retailer 4
-
$1,381 CAD
View
B
Retailer 5
-
$1,387 CAD
View
Retailer 6
-
$1,413 CAD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$1,413 CAD
View
B
Retailer 8
-
$1,468 CAD
View
B
Retailer 9
-
$1,630 CAD
View
B
Retailer 10
-
$1,718 CAD
View
B
Retailer 11
-
$1,718 CAD
View
B
Retailer 12
-
$1,758 CAD
View
B
Retailer 13
-
$1,760 CAD
View
B
Retailer 14
-
$1,774 CAD
View
B
Retailer 15
-
$2,011 CAD
View
C
Retailer 16
-
$2,532 CAD
View
B
Retailer 17
-
$2,848 CAD
View
Most Expensive
NZ Jewellers
029c039f-5a5a-4872-8f70-5be64ca9e69e · Nov 5
$3,804 CAD
$2,724 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,299 CADSave up to $1,549 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
$1,299 CAD