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Marquise|Natural|GIA

0.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 6552974932

Certificate GIA 6552974932

Diamond specifications and retailer prices

From $794 SGD
₹59,174 INR
As of October 31, 2026
Save $1,136 SGD (59%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,287 SGD at NZ Jewellers · As of October 30, 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 6552974932. Listed at 22 retailers as of October 29, 2026, with a 143% 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552974932
Dimensions8.17 × 4.19 × 2.55 mm
L/W Ratio1.95
Culet sizeNone
Key to symbols
Feather
Top View
8.17 mm4.19 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552974932
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.9%

Caratlytics Score

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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: $3,287 SGD|Low: $785 SGD|High: $3,287 SGD|Avg: $1,277 SGD
NZ Jewellers
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
October 31, 2026
Retailer 2$794 SGD
Retailer 13$802 SGD
Retailer 12$936 SGD
Retailer 6$966 SGD
Retailer 5$1,042 SGD
Retailer 3$1,048 SGD
Retailer 19$1,048 SGD
Retailer 7$1,064 SGD
Retailer 20$1,088 SGD
Retailer 11$1,107 SGD
Retailer 4$1,209 SGD
Retailer 9$1,218 SGD
Retailer 8$1,223 SGD
Retailer 10$1,259 SGD
Retailer 14$1,262 SGD
Retailer 17$1,291 SGD
Retailer 15$1,482 SGD
Retailer 16$1,618 SGD
Retailer 18$1,930 SGD
NZ Jewellers$3,287 SGD

26 data points across 20 retailers

22 retailers$794 SGD to $1,930 SGD

A
Cheapest Retailer
-
$794 SGD
₹59,174 INR
A
Retailer 2
-
$802 SGD
HK$4,900 HKD
View
A
Retailer 3
-
$936 SGD
$732 USD
View
A
Retailer 4
-
$966 SGD
$756 USD
View
Final sale: no returns
A
Retailer 5
-
$987 SGD
A$1,187 AUD
View
Retailer 6
-
$1,042 SGD
$815 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$1,048 SGD
$820 USD
View
A
Retailer 8
-
$1,048 SGD
$820 USD
View
B+
Retailer 9
-
$1,064 SGD
$832 USD
View
B+
Retailer 10
-
$1,088 SGD
$851 USD
View
B+
Retailer 11
-
$1,107 SGD
View
B+
Retailer 12
-
$1,209 SGD
$946 USD
View
B+
Retailer 13
-
$1,218 SGD
$953 USD
View
B+
Retailer 14
-
$1,223 SGD
$957 USD
View
B+
Retailer 15
-
$1,259 SGD
$985 USD
View
B+
Retailer 16
-
$1,262 SGD
£777 GBP
View
B+
Retailer 17
-
$1,291 SGD
£795 GBP
View
B+
Retailer 18
-
$1,482 SGD
€1,104 EUR
View
Retailer 19
-
$1,602 SGD
A$1,927 AUD
View
Price last confirmed 27 days ago
B+
Retailer 20
-
$1,618 SGD
ZAR 20,447 ZAR
View
B
Retailer 21
-
$1,930 SGD
£1,189 GBP
View
Most Expensive
NZ Jewellers
3f724734-06cf-487f-9645-3f0ba00e4b40 · Oct 30
$3,287 SGD
$2,571 USD
View
Price under review
21 more retailers have this diamond
Prices start from $794 SGDSave up to $1,136 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
$794 SGD