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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 6551995451

Certificate GIA 6551995451

Diamond specifications and retailer prices

From $900 NZD
As of November 6, 2026
Save $2,479 NZD (73%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,379 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551995451. Listed at 19 retailers as of November 5, 2026, with prices from $900 to $3,379, a $2,479 spread on the same certified stone. NZ Jewellers lists it at $3,379. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6551995451
Dimensions7.36 × 4.39 × 2.48 mm
L/W Ratio1.68
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
7.36 mm4.39 mm0.50 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 6551995451
Side View
Table 61.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 56.6%

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 6
Current: $3,379 NZD|Low: $900 NZD|High: $3,516 NZD|Avg: $1,474 NZD|-3.9%
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
November 6, 2026
Retailer 4$900 NZD
Retailer 5$994 NZD
Retailer 13$1,077 NZD
Retailer 8$1,100 NZD
Retailer 9$1,120 NZD
Retailer 3$1,160 NZD
Retailer 15$1,160 NZD
Retailer 10$1,243 NZD
Retailer 18$1,243 NZD
Retailer 12$1,310 NZD
Retailer 6$1,313 NZD
Retailer 2$1,315 NZD
Retailer 17$1,349 NZD
Retailer 7$1,425 NZD
Retailer 11$1,584 NZD
Retailer 14$1,663 NZD
Retailer 16$2,500 NZD
NZ Jewellers$3,379 NZD

26 data points across 18 retailers

19 retailers$900 NZD to $3,379 NZD

A
Cheapest Retailer
-
$900 NZD
B+
Retailer 2
-
$994 NZD
View
Final sale: no returns
B+
Retailer 3
-
$1,077 NZD
View
B+
Retailer 4
-
$1,100 NZD
View
Retailer 5
-
$1,120 NZD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$1,160 NZD
View
Retailer 7
-
$1,160 NZD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$1,243 NZD
View
Retailer 9
-
$1,243 NZD
View
Price last confirmed 20 days ago
B+
Retailer 10
-
$1,310 NZD
View
B+
Retailer 11
-
$1,313 NZD
View
B+
Retailer 12
-
$1,315 NZD
View
B
Retailer 13
-
$1,349 NZD
View
B
Retailer 14
-
$1,425 NZD
View
B
Retailer 15
-
$1,584 NZD
View
B
Retailer 16
-
$1,663 NZD
View
Retailer 17
-
$1,685 NZD
View
Price last confirmed 34 days ago
Retailer 18
-
$2,500 NZD
View
Price last confirmed 9 days ago
Most Expensive
C
NZ Jewellers
a37c93f1-97a8-4566-98a8-e8a598bbe4cb · Nov 5
$3,379 NZD
$1,873 USD
View
18 more retailers have this diamond
Prices start from $900 NZDSave up to $2,479 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.

A
0.50ct Marquise
$900 NZD