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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 1553995737

Certificate GIA 1553995737

Diamond specifications and retailer prices

From $589 SGD
HK$3,600 HKD
As of November 1, 2026
Save $1,616 SGD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,205 SGD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553995737. Listed at 14 retailers as of October 30, 2026, with prices from $589 to $2,205, a $1,616 spread on the same certified stone. NZ Jewellers lists it at $2,205. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1553995737
Dimensions7.77 × 4.33 × 2.61 mm
L/W Ratio1.79
Key to symbols
Twinning Wisp, Feather
Top View
7.77 mm4.33 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 1553995737
Side View
Table 62.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 60.2%

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: $2,205 SGD|Low: $573 SGD|High: $2,205 SGD|Avg: $951 SGD|+3.7%
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
November 2, 2026
Retailer 3$589 SGD
Retailer 14$647 SGD
Retailer 11$703 SGD
Retailer 5$734 SGD
Retailer 12$757 SGD
Retailer 13$757 SGD
Retailer 6$811 SGD
Retailer 10$811 SGD
Retailer 2$840 SGD
Retailer 4$880 SGD
Retailer 7$888 SGD
Retailer 9$1,045 SGD
Retailer 8$1,624 SGD
NZ Jewellers$2,205 SGD

31 data points across 14 retailers

14 retailers$589 SGD to $2,205 SGD

A
Cheapest Retailer
-
$589 SGD
HK$3,600 HKD
B+
Retailer 2
-
$647 SGD
$506 USD
View
Final sale: no returns
A
Retailer 3
-
$703 SGD
$550 USD
View
B+
Retailer 4
-
$734 SGD
View
B+
Retailer 5
-
$757 SGD
$592 USD
View
A
Retailer 6
-
$757 SGD
$592 USD
View
B+
Retailer 7
-
$811 SGD
$634 USD
View
Retailer 8
-
$811 SGD
$634 USD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$840 SGD
£517 GBP
View
B+
Retailer 10
-
$880 SGD
$688 USD
View
B+
Retailer 11
-
$888 SGD
£547 GBP
View
B
Retailer 12
-
$1,045 SGD
€778 EUR
View
B
Retailer 13
-
$1,624 SGD
£1,000 GBP
View
Most Expensive
B
NZ Jewellers
f71baf55-1e42-41d2-9725-8ffb66d927e9 · Oct 30
$2,205 SGD
$1,724 USD
View
13 more retailers have this diamond
Prices start from $589 SGDSave up to $1,616 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
$589 SGD