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Marquise|Natural|GIA

0.51ct E SI2 Marquise Natural Diamond

GD • E/SI2 • GIA 6515228594

Certificate GIA 6515228594

Diamond specifications and retailer prices

From $1,188 SGD
As of November 1, 2026
Save $1,417 SGD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,479 SGD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6515228594. Listed at 18 retailers as of November 1, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6515228594
Dimensions8.63 × 4.00 × 2.54 mm
L/W Ratio2.16
Top View
8.63 mm4.00 mm0.51 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6515228594
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.4%

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: Nov 1
Current: $1,839 SGD|Low: $994 SGD|High: $2,644 SGD|Avg: $1,614 SGD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$1,188 SGD
Retailer 5$1,193 SGD
Retailer 6$1,268 SGD
Retailer 2$1,609 SGD
Retailer 1$1,839 SGD
Retailer 3$2,604 SGD

44 data points across 6 retailers

18 retailers$1,188 SGD to $2,604 SGD

B+
Cheapest Retailer
-
$1,188 SGD
B+
Retailer 2
-
$1,193 SGD
View
Final sale: no returns
B
Retailer 3
-
$1,263 SGD
View
B
Retailer 4
-
$1,263 SGD
View
B
Retailer 5
-
$1,268 SGD
View
Retailer 6
-
$1,293 SGD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$1,293 SGD
View
B
Retailer 8
-
$1,342 SGD
View
B
Retailer 9
-
$1,491 SGD
View
B
Retailer 10
-
$1,571 SGD
View
B
Retailer 11
-
$1,571 SGD
View
B
Retailer 12
-
$1,608 SGD
View
B
Retailer 13
-
$1,609 SGD
View
B
Retailer 14
-
$1,622 SGD
View
B
Retailer 15
-
$1,839 SGD
View
C
Retailer 16
-
$2,316 SGD
View
B
Retailer 17
-
$2,604 SGD
View
Most Expensive
NZ Jewellers
029c039f-5a5a-4872-8f70-5be64ca9e69e · Nov 5
$3,479 SGD
$2,724 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,188 SGDSave up to $1,417 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
$1,188 SGD