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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

GD • E/SI1 • GIA 2554049460

Certificate GIA 2554049460

Diamond specifications and retailer prices

From $1,542 NZD
As of November 4, 2026
Save $1,822 NZD (54%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,486 NZD at NZ Jewellers · As of November 5, 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554049460. Listed at 24 retailers as of November 4, 2026, with a 118% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554049460
Dimensions8.08 × 4.20 × 2.54 mm
L/W Ratio1.92
Top View
8.08 mm4.20 mm0.50 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554049460
Side View
Table 61.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,486 NZD|Low: $1,539 NZD|High: $4,486 NZD|Avg: $2,348 NZD
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
November 6, 2026
Retailer 12$1,539 NZD
Retailer 15$1,637 NZD
Retailer 5$1,665 NZD
Retailer 6$1,667 NZD
Retailer 13$1,685 NZD
Retailer 3$1,731 NZD
Retailer 4$1,891 NZD
Retailer 14$1,939 NZD
Retailer 8$2,071 NZD
Retailer 9$2,122 NZD
Retailer 2$2,373 NZD
Retailer 16$2,405 NZD
Retailer 10$2,839 NZD
Retailer 7$2,980 NZD
Retailer 11$3,364 NZD
NZ Jewellers$4,486 NZD

45 data points across 16 retailers

24 retailers$1,542 NZD to $3,364 NZD

Retailer 1
-
$1,539 NZD
Price last confirmed 9 days ago
B+
Retailer 2
-
$1,542 NZD
View
B+
Retailer 3
-
$1,637 NZD
View
B+
Retailer 4
-
$1,647 NZD
View
B+
Retailer 5
-
$1,658 NZD
View
B+
Retailer 6
-
$1,665 NZD
View
Retailer 7
-
$1,667 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,667 NZD
View
B+
Retailer 9
-
$1,685 NZD
View
B
Retailer 10
-
$1,731 NZD
View
B
Retailer 11
-
$1,891 NZD
View
B
Retailer 12
-
$1,923 NZD
View
B
Retailer 13
-
$1,939 NZD
View
B
Retailer 14
-
$2,028 NZD
View
B
Retailer 15
-
$2,028 NZD
View
B
Retailer 16
-
$2,071 NZD
View
B
Retailer 17
-
$2,099 NZD
View
B
Retailer 18
-
$2,122 NZD
View
B
Retailer 19
-
$2,373 NZD
View
Retailer 20
-
$2,405 NZD
View
Price last confirmed 33 days ago
B
Retailer 21
-
$2,839 NZD
View
C
Retailer 22
-
$2,980 NZD
View
B
Retailer 23
-
$3,364 NZD
View
Most Expensive
NZ Jewellers
b7e4e357-83ab-45b9-9099-d6809702460b · Nov 5
$4,486 NZD
$2,522 USD
View
Price under review
23 more retailers have this diamond
Prices start from $1,542 NZDSave up to $1,822 NZD

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.

B+
0.50ct Marquise
$1,542 NZD