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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 $1,061 NZD
As of October 30, 2026
18 retailers carry this diamond
Most expensive: $3,927 NZD 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: $3,927 NZD|Low: $1,016 NZD|High: $3,927 NZD|Avg: $1,650 NZD|+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$1,061 NZD
Retailer 6$1,154 NZD
Retailer 17$1,252 NZD
Retailer 19$1,252 NZD
Retailer 7$1,263 NZD
Retailer 10$1,301 NZD
Retailer 18$1,301 NZD
Retailer 5$1,445 NZD
Retailer 16$1,445 NZD
Retailer 8$1,463 NZD
Retailer 9$1,490 NZD
Retailer 12$1,541 NZD
Retailer 13$1,544 NZD
Retailer 4$1,578 NZD
Retailer 15$1,777 NZD
Retailer 2$1,932 NZD
Retailer 11$1,948 NZD
Retailer 14$2,906 NZD
NZ Jewellers$3,927 NZD

26 data points across 19 retailers

18 retailers$1,061 NZD to $3,927 NZD

Retailer 1
-
$1,061 NZD
Price last confirmed 8 days ago
Retailer 2
-
$1,252 NZD
View
Price last confirmed 9 days ago
Retailer 3
-
$1,252 NZD
View
Price last confirmed 9 days ago
Retailer 4
-
$1,263 NZD
View
Price last confirmed 10 days ago
Retailer 5
-
$1,301 NZD
View
Price last confirmed 9 days ago
Retailer 6
-
$1,301 NZD
View
Price last confirmed 11 days ago
Retailer 7
-
$1,445 NZD
View
Price last confirmed 11 days ago
Retailer 8
-
$1,445 NZD
View
Price last confirmed 20 days ago
Retailer 9
-
$1,463 NZD
View
Price last confirmed 8 days ago
Retailer 10
-
$1,490 NZD
View
Price last confirmed 8 days ago
Retailer 11
-
$1,541 NZD
View
Price last confirmed 8 days ago
Retailer 12
-
$1,544 NZD
View
Price last confirmed 8 days ago
Retailer 13
-
$1,578 NZD
View
Price last confirmed 7 days ago
Retailer 14
-
$1,777 NZD
View
Price last confirmed 10 days ago
Retailer 15
-
$1,932 NZD
View
Price last confirmed 8 days ago
Retailer 16
-
$1,948 NZD
View
Price last confirmed 33 days ago
Retailer 17
-
$2,906 NZD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
68b04a57-1884-4203-9656-3c71befe0aef · Oct 27
$3,927 NZD
$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
$1,061 NZD