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Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 6552497564

Certificate GIA 6552497564

Diamond specifications and retailer prices

From $791 CAD
$566 USD
As of November 2, 2026
Save $2,174 CAD (73%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,964 CAD 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 stated by the retailer rather than the lab and certified by GIA 6552497564. Listed at 21 retailers as of October 30, 2026, with prices from $791 to $2,964, a $2,174 spread on the same certified stone. NZ Jewellers lists it at $2,964. 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
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.5°
OriginNatural
Grading LabGIA
CertificateGIA 6552497564
Dimensions7.97 × 4.23 × 2.69 mm
L/W Ratio1.88
Girdle conditionFaceted
Top View
7.97 mm4.23 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552497564
Side View
Table 61.0%Crown 36.6°Girdle: MED-THKPavilion 41.5°Culet: NDepth 63.6%

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: $2,964 CAD|Low: $679 CAD|High: $3,052 CAD|Avg: $1,159 CAD|-2.9%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 10$791 CAD
Retailer 15$810 CAD
Retailer 7$856 CAD
Retailer 11$858 CAD
Retailer 9$922 CAD
Retailer 12$922 CAD
Retailer 14$944 CAD
Retailer 17$960 CAD
Retailer 6$969 CAD
Retailer 4$988 CAD
Retailer 8$999 CAD
Retailer 5$1,048 CAD
Retailer 19$1,048 CAD
Retailer 20$1,090 CAD
Retailer 2$1,129 CAD
Retailer 13$1,156 CAD
Retailer 3$1,213 CAD
Retailer 18$1,266 CAD
Retailer 16$2,182 CAD
NZ Jewellers$2,964 CAD

29 data points across 20 retailers

21 retailers$791 CAD to $2,964 CAD

A
Cheapest Retailer
-
$791 CAD
$566 USD
Final sale: no returns
A
Retailer 2
-
$810 CAD
$580 USD
View
A
Retailer 3
-
$856 CAD
$613 USD
View
B+
Retailer 4
-
$858 CAD
HK$4,800 HKD
View
A
Retailer 5
-
$922 CAD
$660 USD
View
A
Retailer 6
-
$922 CAD
$660 USD
View
A
Retailer 7
-
$944 CAD
$676 USD
View
A
Retailer 8
-
$960 CAD
$687 USD
View
A
Retailer 9
-
$969 CAD
$694 USD
View
B+
Retailer 10
-
$988 CAD
$707 USD
View
A
Retailer 11
-
$999 CAD
$715 USD
View
B+
Retailer 12
-
$1,048 CAD
$750 USD
View
B+
Retailer 13
-
$1,048 CAD
$750 USD
View
B+
Retailer 14
-
$1,090 CAD
$780 USD
View
B+
Retailer 15
-
$1,129 CAD
£636 GBP
View
B+
Retailer 16
-
$1,156 CAD
£652 GBP
View
B+
Retailer 17
-
$1,213 CAD
$868 USD
View
Retailer 18
-
$1,261 CAD
£711 GBP
View
Price last confirmed 36 days ago
B+
Retailer 19
-
$1,266 CAD
€863 EUR
View
B
Retailer 20
-
$2,182 CAD
£1,230 GBP
View
Most Expensive
B
NZ Jewellers
76c2553c-4cf3-400f-8ed5-5859e1cdf99e · Oct 30
$2,964 CAD
$2,122 USD
View
20 more retailers have this diamond
Prices start from $791 CADSave up to $2,174 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.

A
0.51ct Marquise
$791 CAD