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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6562499780

Certificate GIA 6562499780

Diamond specifications and retailer prices

From $1,035 NZD
As of November 6, 2026
Save $1,533 NZD (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,405 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562499780. Listed at 18 retailers as of November 4, 2026, with a 148% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562499780
Dimensions8.10 × 4.22 × 2.64 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
8.10 mm4.22 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562499780
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.7%

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: $4,405 NZD|Low: $1,035 NZD|High: $4,474 NZD|Avg: $1,789 NZD|-1.5%
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 2$1,035 NZD
Retailer 7$1,254 NZD
Retailer 6$1,299 NZD
Retailer 3$1,405 NZD
Retailer 17$1,405 NZD
Retailer 5$1,427 NZD
Retailer 18$1,459 NZD
Retailer 9$1,587 NZD
Retailer 10$1,622 NZD
Retailer 16$1,643 NZD
Retailer 13$1,661 NZD
Retailer 8$1,676 NZD
Retailer 4$1,714 NZD
Retailer 11$1,714 NZD
Retailer 12$1,813 NZD
Retailer 14$2,166 NZD
Retailer 15$2,569 NZD
NZ Jewellers$4,405 NZD

21 data points across 18 retailers

18 retailers$1,035 NZD to $2,569 NZD

A
Cheapest Retailer
-
$1,035 NZD
B+
Retailer 2
-
$1,254 NZD
View
B+
Retailer 3
-
$1,299 NZD
View
Retailer 4
-
$1,405 NZD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$1,405 NZD
View
B+
Retailer 6
-
$1,427 NZD
View
B+
Retailer 7
-
$1,459 NZD
View
B
Retailer 8
-
$1,587 NZD
View
B+
Retailer 9
-
$1,622 NZD
View
B+
Retailer 10
-
$1,643 NZD
View
B+
Retailer 11
-
$1,661 NZD
View
B+
Retailer 12
-
$1,676 NZD
View
B+
Retailer 13
-
$1,714 NZD
View
B+
Retailer 14
-
$1,714 NZD
View
B
Retailer 15
-
$1,813 NZD
View
B
Retailer 16
-
$2,166 NZD
View
B
Retailer 17
-
$2,569 NZD
View
Most Expensive
NZ Jewellers
84a52555-a39d-4d83-a36b-e799c92ae233 · Nov 5
$4,405 NZD
$2,442 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,035 NZDSave up to $1,533 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
$1,035 NZD