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Marquise|Natural|GIA

0.51ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 3555796306

Certificate GIA 3555796306

Diamond specifications and retailer prices

From $1,311 CAD
$937 USD
As of October 28, 2026
Save $1,394 CAD (52%) vs most expensive(unlock to see where)
18 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 3555796306. Listed at 18 retailers as of October 25, 2026, with a 106% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555796306
Dimensions8.83 × 4.00 × 2.46 mm
L/W Ratio2.21
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
8.83 mm4.00 mm0.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555796306
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 61.7%

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: Oct 28
Current: $1,740 CAD|Low: $1,311 CAD|High: $2,736 CAD|Avg: $1,878 CAD|+6.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 9$1,311 CAD
Retailer 11$1,337 CAD
Retailer 7$1,351 CAD
Retailer 8$1,547 CAD
Retailer 3$1,661 CAD
Retailer 1$1,740 CAD
Retailer 4$1,913 CAD
Retailer 10$1,929 CAD
Retailer 5$2,272 CAD
Retailer 2$2,393 CAD
Retailer 6$2,705 CAD

43 data points across 11 retailers

18 retailers$1,311 CAD to $2,705 CAD

B+
Cheapest Retailer
-
$1,311 CAD
$937 USD
B+
Retailer 2
-
$1,320 CAD
$943 USD
View
B+
Retailer 3
-
$1,328 CAD
A$1,460 AUD
View
B+
Retailer 4
-
$1,337 CAD
$955 USD
View
B+
Retailer 5
-
$1,337 CAD
$955 USD
View
B+
Retailer 6
-
$1,351 CAD
$965 USD
View
B+
Retailer 7
-
$1,388 CAD
$992 USD
View
B+
Retailer 8
-
$1,542 CAD
$1,102 USD
View
B+
Retailer 9
-
$1,547 CAD
$1,105 USD
View
B+
Retailer 10
-
$1,661 CAD
$1,187 USD
View
B+
Retailer 11
-
$1,740 CAD
£979 GBP
View
B
Retailer 12
-
$1,913 CAD
€1,302 EUR
View
Retailer 13
-
$1,929 CAD
A$2,121 AUD
View
Price last confirmed 24 days ago
B
Retailer 14
-
$1,932 CAD
$1,381 USD
View
B
Retailer 15
-
$2,272 CAD
ZAR 26,226 ZAR
View
B
Retailer 16
-
$2,393 CAD
View
B
Retailer 17
-
$2,705 CAD
£1,522 GBP
View
Most Expensive
NZ Jewellers
d4932268-9316-440b-8c79-7fc8808db737 · Oct 27
$3,598 CAD
$2,571 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,311 CADSave up to $1,394 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
$1,311 CAD