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Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7551203000

Certificate GIA 7551203000

Diamond specifications and retailer prices

From $769 SGD
HK$4,700 HKD
As of November 1, 2026
Save $1,100 SGD (59%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,349 SGD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded D 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 7551203000. Listed at 21 retailers as of November 1, 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

0.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551203000
Dimensions8.14 × 4.24 × 2.50 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Knot
Top View
8.14 mm4.24 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551203000
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.9%

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: Nov 1
Current: $773 SGD|Low: $730 SGD|High: $2,639 SGD|Avg: $1,362 SGD|-2.0%
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
November 2, 2026
Retailer 13$769 SGD
Retailer 1$773 SGD
Retailer 12$910 SGD
Retailer 14$942 SGD
Retailer 2$1,036 SGD
Retailer 5$1,078 SGD
Retailer 4$1,190 SGD
Retailer 8$1,217 SGD
Retailer 15$1,234 SGD
Retailer 3$1,376 SGD
Retailer 10$1,444 SGD
Retailer 6$1,535 SGD
Retailer 11$1,575 SGD
Retailer 9$1,869 SGD
Retailer 7$2,500 SGD

33 data points across 15 retailers

21 retailers$769 SGD to $1,869 SGD

A
Cheapest Retailer
-
$769 SGD
HK$4,700 HKD
A
Retailer 2
-
$773 SGD
₹57,623 INR
View
A
Retailer 3
-
$910 SGD
$712 USD
View
A
Retailer 4
-
$942 SGD
$737 USD
View
Final sale: no returns
A
Retailer 5
-
$965 SGD
A$1,161 AUD
View
Retailer 6
-
$1,002 SGD
$784 USD
View
Price last confirmed 46 days ago
Retailer 7
-
$1,020 SGD
$798 USD
View
Price last confirmed 17 days ago
A
Retailer 8
-
$1,036 SGD
$810 USD
View
Retailer 9
-
$1,067 SGD
$835 USD
View
Price last confirmed 41 days ago
B+
Retailer 10
-
$1,078 SGD
View
B+
Retailer 11
-
$1,190 SGD
$931 USD
View
B+
Retailer 12
-
$1,217 SGD
£750 GBP
View
Retailer 13
-
$1,232 SGD
$964 USD
View
Price last confirmed 41 days ago
B+
Retailer 14
-
$1,234 SGD
$965 USD
View
B+
Retailer 15
-
$1,376 SGD
$1,076 USD
View
B+
Retailer 16
-
$1,444 SGD
A$1,738 AUD
View
B+
Retailer 17
-
$1,444 SGD
€1,076 EUR
View
Retailer 18
-
$1,535 SGD
A$1,847 AUD
View
Price last confirmed 29 days ago
B+
Retailer 19
-
$1,575 SGD
ZAR 19,909 ZAR
View
B
Retailer 20
-
$1,869 SGD
£1,151 GBP
View
Most Expensive
NZ Jewellers
4132ea8f-779b-4abd-90d9-002858131449 · Sep 20
$3,349 SGD
$2,620 USD
View
Price under review
20 more retailers have this diamond
Prices start from $769 SGDSave up to $1,100 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
0.50ct Marquise
$769 SGD