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Marquise|Natural|GIA

0.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6552974932

Certificate GIA 6552974932

Diamond specifications and retailer prices

From $860 CAD
HK$4,800 HKD
As of October 29, 2026
Save $1,254 CAD (59%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,598 CAD at NZ Jewellers · As of October 27, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552974932. Listed at 22 retailers as of October 29, 2026, with a 146% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552974932
Dimensions8.17 × 4.19 × 2.55 mm
L/W Ratio1.95
Culet sizeNone
Key to symbols
Feather
Top View
8.17 mm4.19 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552974932
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.9%

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: Oct 29
Current: $3,598 CAD|Low: $860 CAD|High: $3,598 CAD|Avg: $1,418 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 29, 2026
Retailer 10$860 CAD
Retailer 13$873 CAD
Retailer 12$1,025 CAD
Retailer 5$1,058 CAD
Retailer 4$1,141 CAD
Retailer 19$1,148 CAD
Retailer 21$1,148 CAD
Retailer 6$1,164 CAD
Retailer 20$1,191 CAD
Retailer 11$1,212 CAD
Retailer 3$1,324 CAD
Retailer 8$1,333 CAD
Retailer 7$1,339 CAD
Retailer 2$1,377 CAD
Retailer 9$1,379 CAD
Retailer 15$1,417 CAD
Retailer 17$1,619 CAD
Retailer 14$1,753 CAD
Retailer 18$1,767 CAD
Retailer 16$2,113 CAD
NZ Jewellers$3,598 CAD

27 data points across 21 retailers

22 retailers$860 CAD to $2,113 CAD

A
Cheapest Retailer
-
$860 CAD
HK$4,800 HKD
A
Retailer 2
-
$873 CAD
₹59,425 INR
View
A
Retailer 3
-
$1,025 CAD
$732 USD
View
A
Retailer 4
-
$1,058 CAD
$756 USD
View
Final sale: no returns
A
Retailer 5
-
$1,080 CAD
A$1,187 AUD
View
Retailer 6
-
$1,141 CAD
$815 USD
View
Price last confirmed 11 days ago
A
Retailer 7
-
$1,148 CAD
$820 USD
View
A
Retailer 8
-
$1,148 CAD
$820 USD
View
B+
Retailer 9
-
$1,164 CAD
$832 USD
View
A
Retailer 10
-
$1,191 CAD
$851 USD
View
B+
Retailer 11
-
$1,212 CAD
SGD 1,170 SGD
View
B+
Retailer 12
-
$1,324 CAD
$946 USD
View
B+
Retailer 13
-
$1,333 CAD
$953 USD
View
B+
Retailer 14
-
$1,339 CAD
$957 USD
View
B+
Retailer 15
-
$1,377 CAD
£775 GBP
View
B+
Retailer 16
-
$1,379 CAD
$985 USD
View
B+
Retailer 17
-
$1,417 CAD
£797 GBP
View
B+
Retailer 18
-
$1,619 CAD
€1,102 EUR
View
Retailer 19
-
$1,753 CAD
A$1,927 AUD
View
Price last confirmed 26 days ago
B+
Retailer 20
-
$1,767 CAD
ZAR 20,397 ZAR
View
B
Retailer 21
-
$2,113 CAD
£1,189 GBP
View
Most Expensive
NZ Jewellers
3f724734-06cf-487f-9645-3f0ba00e4b40 · Oct 27
$3,598 CAD
$2,571 USD
View
Price under review
21 more retailers have this diamond
Prices start from $860 CADSave up to $1,254 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
$860 CAD