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Marquise|Natural|GIA

0.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2547244543

Certificate GIA 2547244543

Diamond specifications and retailer prices

From $949 CAD
$678 USD
As of October 29, 2026
Save $2,127 CAD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,212 CAD at NZ Jewellers · As of September 25, 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 2547244543. Listed at 16 retailers as of October 29, 2026, with a 224% 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
SymmetryExcellent
FluorescenceNone
Pavilion angle39.4°
OriginNatural
Grading LabGIA
CertificateGIA 2547244543
Dimensions8.64 × 4.22 × 2.45 mm
L/W Ratio2.05
Top View
8.64 mm4.22 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547244543
Side View
Table 61.0%CrownGirdle: MED-THKPavilion 39.4°Culet: NoneDepth 58.1%

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: $1,280 CAD|Low: $686 CAD|High: $3,076 CAD|Avg: $1,286 CAD|+9.2%
Retailer 1
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
October 30, 2026
Retailer 3$852 CAD
Retailer 10$860 CAD
Retailer 16$949 CAD
Retailer 5$952 CAD
Retailer 2$1,015 CAD
Retailer 11$1,044 CAD
Retailer 7$1,055 CAD
Retailer 17$1,187 CAD
Retailer 18$1,218 CAD
Retailer 19$1,218 CAD
Retailer 4$1,260 CAD
Retailer 20$1,260 CAD
Retailer 1$1,280 CAD
Retailer 8$1,323 CAD
Retailer 14$1,495 CAD
Retailer 9$1,517 CAD
Retailer 13$1,529 CAD
Retailer 6$1,560 CAD
Retailer 12$1,945 CAD
Retailer 15$3,076 CAD

33 data points across 20 retailers

16 retailers$949 CAD to $3,076 CAD

Retailer 1
-
$860 CAD
HK$4,800 HKD
Price last confirmed 25 days ago
A
Retailer 2
-
$949 CAD
$678 USD
View
Retailer 3
-
$1,015 CAD
€690 EUR
View
Price last confirmed 24 days ago
Retailer 4
-
$1,044 CAD
$746 USD
View
Price last confirmed 29 days ago
Retailer 5
-
$1,055 CAD
SGD 1,019 SGD
View
Price last confirmed 24 days ago
B+
Retailer 6
-
$1,187 CAD
$848 USD
View
B+
Retailer 7
-
$1,218 CAD
$870 USD
View
B+
Retailer 8
-
$1,218 CAD
$870 USD
View
B+
Retailer 9
-
$1,260 CAD
$900 USD
View
B+
Retailer 10
-
$1,280 CAD
£720 GBP
View
B
Retailer 11
-
$1,495 CAD
€1,017 EUR
View
Retailer 12
-
$1,517 CAD
A$1,667 AUD
View
Price last confirmed 26 days ago
Retailer 13
-
$1,560 CAD
ZAR 18,005 ZAR
View
Price last confirmed 26 days ago
B
Retailer 14
-
$1,945 CAD
£1,094 GBP
View
B
Retailer 15
-
$3,076 CAD
View
Most Expensive
NZ Jewellers
8d672b14-9f32-4c3d-a605-a25855dcacd1 · Sep 25
$3,212 CAD
$2,295 USD
View
Price last confirmed 35 days ago
15 more retailers have this diamond
Prices start from $949 CADSave up to $2,127 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
$949 CAD