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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 1567415074

Certificate GIA 1567415074

Diamond specifications and retailer prices

From $691 SGD
As of November 6, 2026
Save $1,097 SGD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,066 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 F 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 1567415074. Listed at 11 retailers as of November 4, 2026, with a 159% 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1567415074
Dimensions8.13 × 4.25 × 2.61 mm
L/W Ratio1.91
Girdle conditionVery Thick
Top View
8.13 mm4.25 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1567415074
Side View
Table 57.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $727 SGD|Low: $727 SGD|High: $1,799 SGD|Avg: $1,176 SGD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$727 SGD
Retailer 6$992 SGD
Retailer 2$1,161 SGD
Retailer 4$1,162 SGD
Retailer 3$1,376 SGD
Retailer 5$1,788 SGD

30 data points across 6 retailers

11 retailers$691 SGD to $1,788 SGD

A
Cheapest Retailer
-
$691 SGD
Final sale: no returns
A
Retailer 2
-
$727 SGD
View
Retailer 3
-
$897 SGD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
$992 SGD
View
B+
Retailer 5
-
$1,116 SGD
View
B+
Retailer 6
-
$1,147 SGD
View
B+
Retailer 7
-
$1,161 SGD
View
B+
Retailer 8
-
$1,162 SGD
View
B+
Retailer 9
-
$1,376 SGD
View
B
Retailer 10
-
$1,788 SGD
View
Most Expensive
NZ Jewellers
f9b0e7a9-88f2-4fac-abcd-6248f25589b8 · Nov 5
$3,066 SGD
$2,392 USD
View
Price under review
10 more retailers have this diamond
Prices start from $691 SGDSave up to $1,097 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
$691 SGD