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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2554995250

Certificate GIA 2554995250

Diamond specifications and retailer prices

From $754 SGD
As of October 30, 2026
18 retailers carry this diamond
Most expensive: $2,790 SGD at NZ Jewellers · As of October 27, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554995250. Listed at 18 retailers as of October 27, 2026. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554995250
Dimensions8.03 × 4.05 × 2.62 mm
L/W Ratio1.98
Key to symbols
Feather, Crystal
Top View
8.03 mm4.05 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 2554995250
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.6%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 30
Current: $2,790 SGD|Low: $722 SGD|High: $2,790 SGD|Avg: $1,173 SGD|+3.6%
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
October 30, 2026
Retailer 3$754 SGD
Retailer 6$820 SGD
Retailer 17$889 SGD
Retailer 19$889 SGD
Retailer 7$897 SGD
Retailer 10$924 SGD
Retailer 18$924 SGD
Retailer 5$1,027 SGD
Retailer 16$1,027 SGD
Retailer 8$1,039 SGD
Retailer 9$1,059 SGD
Retailer 12$1,094 SGD
Retailer 13$1,097 SGD
Retailer 4$1,121 SGD
Retailer 15$1,262 SGD
Retailer 2$1,373 SGD
Retailer 11$1,384 SGD
Retailer 14$2,065 SGD
NZ Jewellers$2,790 SGD

26 data points across 19 retailers

18 retailers$754 SGD to $2,790 SGD

Retailer 1
-
$754 SGD
Price last confirmed 7 days ago
Retailer 2
-
$889 SGD
View
Price last confirmed 8 days ago
Retailer 3
-
$889 SGD
View
Price last confirmed 8 days ago
Retailer 4
-
$897 SGD
View
Price last confirmed 9 days ago
Retailer 5
-
$924 SGD
View
Price last confirmed 8 days ago
Retailer 6
-
$924 SGD
View
Price last confirmed 10 days ago
Retailer 7
-
$1,027 SGD
View
Price last confirmed 10 days ago
Retailer 8
-
$1,027 SGD
View
Price last confirmed 19 days ago
Retailer 9
-
$1,039 SGD
View
Price last confirmed 7 days ago
Retailer 10
-
$1,059 SGD
View
Price last confirmed 7 days ago
Retailer 11
-
$1,094 SGD
View
Price last confirmed 7 days ago
Retailer 12
-
$1,097 SGD
View
Price last confirmed 7 days ago
Retailer 13
-
$1,121 SGD
View
Price last confirmed 6 days ago
Retailer 14
-
$1,262 SGD
View
Price last confirmed 9 days ago
Retailer 15
-
$1,373 SGD
View
Price last confirmed 7 days ago
Retailer 16
-
$1,384 SGD
View
Price last confirmed 32 days ago
Retailer 17
-
$2,065 SGD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
68b04a57-1884-4203-9656-3c71befe0aef · Oct 27
$2,790 SGD
$2,177 USD
View
Price under review
17 more retailers have this diamond

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.

0.50ct Marquise
$754 SGD