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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 1568415063

Certificate GIA 1568415063

Diamond specifications and retailer prices

From $668 SGD
As of November 6, 2026
Save $1,062 SGD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,967 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 1568415063. 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 1568415063
Dimensions7.96 × 4.17 × 2.63 mm
L/W Ratio1.91
Girdle conditionVery Thick
Top View
7.96 mm4.17 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1568415063
Side View
Table 56.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.0%

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: $704 SGD|Low: $704 SGD|High: $1,755 SGD|Avg: $1,138 SGD|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$704 SGD
Retailer 6$865 SGD
Retailer 7$961 SGD
Retailer 2$1,124 SGD
Retailer 4$1,124 SGD
Retailer 3$1,333 SGD
Retailer 5$1,730 SGD

30 data points across 7 retailers

11 retailers$668 SGD to $1,730 SGD

A
Cheapest Retailer
-
$668 SGD
Final sale: no returns
A
Retailer 2
-
$704 SGD
View
Retailer 3
-
$865 SGD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
$961 SGD
View
B+
Retailer 5
-
$1,088 SGD
View
B+
Retailer 6
-
$1,115 SGD
View
B+
Retailer 7
-
$1,124 SGD
View
B+
Retailer 8
-
$1,124 SGD
View
B+
Retailer 9
-
$1,333 SGD
View
B
Retailer 10
-
$1,730 SGD
View
Most Expensive
NZ Jewellers
90ecfe96-ec6a-4556-8cca-2b43e5702c51 · Nov 5
$2,967 SGD
$2,315 USD
View
Price under review
10 more retailers have this diamond
Prices start from $668 SGDSave up to $1,062 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
$668 SGD