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Marquise|Natural|GIA

0.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2547244543

Certificate GIA 2547244543

Diamond specifications and retailer prices

From $867 SGD
$678 USD
As of October 31, 2026
Save $1,942 SGD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,934 SGD at NZ Jewellers · As of September 25, 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 2547244543. Listed at 16 retailers as of October 30, 2026, with a 224% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39.4°
OriginNatural
Grading LabGIA
CertificateGIA 2547244543
Dimensions8.64 × 4.22 × 2.45 mm
L/W Ratio2.05
Top View
8.64 mm4.22 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547244543
Side View
Table 61.0%CrownGirdle: MED-THKPavilion 39.4°Culet: NoneDepth 58.1%

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: Oct 31
Current: $1,159 SGD|Low: $626 SGD|High: $2,809 SGD|Avg: $1,181 SGD|+8.3%
Retailer 1
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
Retailer 19
Retailer 20
November 1, 2026
Retailer 3$779 SGD
Retailer 10$785 SGD
Retailer 16$867 SGD
Retailer 5$869 SGD
Retailer 2$927 SGD
Retailer 11$954 SGD
Retailer 7$964 SGD
Retailer 17$1,084 SGD
Retailer 18$1,112 SGD
Retailer 19$1,112 SGD
Retailer 4$1,151 SGD
Retailer 20$1,151 SGD
Retailer 1$1,159 SGD
Retailer 8$1,209 SGD
Retailer 12$1,368 SGD
Retailer 9$1,385 SGD
Retailer 13$1,397 SGD
Retailer 6$1,425 SGD
Retailer 14$1,776 SGD
Retailer 15$2,809 SGD

33 data points across 20 retailers

16 retailers$867 SGD to $2,809 SGD

Retailer 1
-
$785 SGD
HK$4,800 HKD
Price last confirmed 27 days ago
A
Retailer 2
-
$867 SGD
$678 USD
View
Retailer 3
-
$927 SGD
€690 EUR
View
Price last confirmed 26 days ago
Retailer 4
-
$954 SGD
$746 USD
View
Price last confirmed 31 days ago
Retailer 5
-
$964 SGD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
$1,084 SGD
$848 USD
View
B+
Retailer 7
-
$1,112 SGD
$870 USD
View
B+
Retailer 8
-
$1,112 SGD
$870 USD
View
B+
Retailer 9
-
$1,151 SGD
$900 USD
View
B+
Retailer 10
-
$1,159 SGD
£714 GBP
View
B
Retailer 11
-
$1,368 SGD
€1,019 EUR
View
Retailer 12
-
$1,385 SGD
A$1,667 AUD
View
Price last confirmed 28 days ago
Retailer 13
-
$1,425 SGD
ZAR 18,005 ZAR
View
Price last confirmed 28 days ago
B
Retailer 14
-
$1,776 SGD
£1,094 GBP
View
B
Retailer 15
-
$2,809 SGD
CA$3,052 CAD
View
Most Expensive
NZ Jewellers
8d672b14-9f32-4c3d-a605-a25855dcacd1 · Sep 25
$2,934 SGD
$2,295 USD
View
Price last confirmed 36 days ago
15 more retailers have this diamond
Prices start from $867 SGDSave up to $1,942 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
$867 SGD