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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6545535409

Certificate GIA 6545535409

Diamond specifications and retailer prices

From $655 SGD
HK$4,000 HKD
As of November 1, 2026
Save $1,149 SGD (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,449 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 H 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 6545535409. Listed at 14 retailers as of November 1, 2026, with a 176% 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6545535409
Dimensions8.48 × 4.04 × 2.45 mm
L/W Ratio2.10
Top View
8.48 mm4.04 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6545535409
Side View
Table 58.0%CrownGirdle: Very ThickPavilionCulet: NDepth 60.6%

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: $2,449 SGD|Low: $720 SGD|High: $2,449 SGD|Avg: $1,074 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
November 2, 2026
Retailer 3$720 SGD
Retailer 12$781 SGD
Retailer 10$841 SGD
Retailer 11$841 SGD
Retailer 8$901 SGD
Retailer 2$933 SGD
Retailer 4$946 SGD
Retailer 6$960 SGD
Retailer 9$979 SGD
Retailer 5$1,152 SGD
Retailer 7$1,804 SGD
NZ Jewellers$2,449 SGD

33 data points across 12 retailers

14 retailers$655 SGD to $1,804 SGD

A
Cheapest Retailer
-
$655 SGD
HK$4,000 HKD
A
Retailer 2
-
$720 SGD
$563 USD
View
Final sale: no returns
B+
Retailer 3
-
$781 SGD
$611 USD
View
B+
Retailer 4
-
$841 SGD
$658 USD
View
B+
Retailer 5
-
$841 SGD
$658 USD
View
B+
Retailer 6
-
$901 SGD
$705 USD
View
B+
Retailer 7
-
$901 SGD
$705 USD
View
B+
Retailer 8
-
$933 SGD
£575 GBP
View
B+
Retailer 9
-
$946 SGD
$740 USD
View
B+
Retailer 10
-
$960 SGD
£591 GBP
View
B+
Retailer 11
-
$979 SGD
£603 GBP
View
B
Retailer 12
-
$1,152 SGD
€858 EUR
View
B
Retailer 13
-
$1,804 SGD
£1,111 GBP
View
Most Expensive
NZ Jewellers
3393a178-b7b2-47be-8ba7-0a0ae1ddd652 · Oct 30
$2,449 SGD
$1,916 USD
View
Price under review
13 more retailers have this diamond
Prices start from $655 SGDSave up to $1,149 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
$655 SGD