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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 $1,198 SGD
$937 USD
As of October 28, 2026
Save $1,273 SGD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,287 SGD 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
Colour
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: $1,589 SGD|Low: $1,198 SGD|High: $2,499 SGD|Avg: $1,714 SGD|+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 30, 2026
Retailer 9$1,198 SGD
Retailer 11$1,221 SGD
Retailer 7$1,234 SGD
Retailer 8$1,413 SGD
Retailer 3$1,517 SGD
Retailer 1$1,589 SGD
Retailer 4$1,748 SGD
Retailer 10$1,762 SGD
Retailer 5$2,075 SGD
Retailer 2$2,186 SGD
Retailer 6$2,471 SGD

44 data points across 11 retailers

18 retailers$1,198 SGD to $2,471 SGD

B+
Cheapest Retailer
-
$1,198 SGD
$937 USD
B+
Retailer 2
-
$1,206 SGD
$943 USD
View
B+
Retailer 3
-
$1,213 SGD
A$1,460 AUD
View
B+
Retailer 4
-
$1,221 SGD
$955 USD
View
B+
Retailer 5
-
$1,221 SGD
$955 USD
View
B+
Retailer 6
-
$1,234 SGD
$965 USD
View
B+
Retailer 7
-
$1,268 SGD
$992 USD
View
B+
Retailer 8
-
$1,409 SGD
$1,102 USD
View
B+
Retailer 9
-
$1,413 SGD
$1,105 USD
View
B+
Retailer 10
-
$1,517 SGD
$1,187 USD
View
B+
Retailer 11
-
$1,589 SGD
£979 GBP
View
B
Retailer 12
-
$1,748 SGD
€1,302 EUR
View
Retailer 13
-
$1,762 SGD
A$2,121 AUD
View
Price last confirmed 25 days ago
B
Retailer 14
-
$1,765 SGD
$1,381 USD
View
B
Retailer 15
-
$2,075 SGD
ZAR 26,226 ZAR
View
B
Retailer 16
-
$2,186 SGD
CA$2,374 CAD
View
B
Retailer 17
-
$2,471 SGD
£1,522 GBP
View
Most Expensive
NZ Jewellers
d4932268-9316-440b-8c79-7fc8808db737 · Oct 27
$3,287 SGD
$2,571 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,198 SGDSave up to $1,273 SGD

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
$1,198 SGD