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Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6545321237

Certificate GIA 6545321237

Diamond specifications and retailer prices

From $940 SGD
As of November 5, 2026
Save $1,070 SGD (53%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,010 SGD at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545321237. Listed at 11 retailers as of November 5, 2026, with prices from $940 to $2,010, a $1,070 spread on the same certified stone. Diamond Exchange Canada lists it at $2,010. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle41.3°
OriginNatural
Grading LabGIA
CertificateGIA 6545321237
Dimensions8.19 × 4.21 × 2.68 mm
L/W Ratio1.95
Top View
8.19 mm4.21 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545321237
Side View
Table 58.0%CrownGirdle: MED-VTKPavilion 41.3°Culet: NoneDepth 63.5%

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 5
Current: $2,010 SGD|Low: $654 SGD|High: $2,010 SGD|Avg: $1,289 SGD
Diamond Exchange Canada
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
November 6, 2026
Retailer 10$654 SGD
Retailer 11$940 SGD
Retailer 15$1,040 SGD
Retailer 8$1,090 SGD
Retailer 5$1,105 SGD
Retailer 3$1,116 SGD
Retailer 13$1,138 SGD
Retailer 18$1,138 SGD
Retailer 9$1,182 SGD
Retailer 12$1,280 SGD
Retailer 16$1,362 SGD
Retailer 4$1,379 SGD
Retailer 7$1,379 SGD
Retailer 14$1,395 SGD
Retailer 6$1,418 SGD
Retailer 2$1,602 SGD
Retailer 17$1,893 SGD
Diamond Exchange Canada$2,010 SGD

19 data points across 18 retailers

11 retailers$940 SGD to $2,010 SGD

A
Cheapest Retailer
-
$940 SGD
B+
Retailer 2
-
$1,040 SGD
View
B+
Retailer 3
-
$1,116 SGD
View
B+
Retailer 4
-
$1,138 SGD
View
B+
Retailer 5
-
$1,280 SGD
View
B
Retailer 6
-
$1,379 SGD
View
B
Retailer 7
-
$1,379 SGD
View
B
Retailer 8
-
$1,395 SGD
View
B+
Retailer 9
-
$1,418 SGD
View
B
Retailer 10
-
$1,602 SGD
View
Most Expensive
B
Diamond Exchange Canada
1982807032 · Nov 5
$2,010 SGD
CA$2,185 CAD
View
10 more retailers have this diamond
Prices start from $940 SGDSave up to $1,070 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.

A
0.51ct Marquise
$940 SGD