CaratHunter
Plans
Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 1553255657

Certificate GIA 1553255657

Diamond specifications and retailer prices

From $1,143 NZD
$643 USD
As of November 2, 2026
Save $1,376 NZD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,290 NZD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553255657. Listed at 14 retailers as of October 29, 2026, with a 120% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553255657
Dimensions8.35 × 4.12 × 2.49 mm
L/W Ratio2.03
Key to symbols
Twinning Wisp
Top View
8.35 mm4.12 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553255657
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 60.3%

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 2
Current: $4,290 NZD|Low: $953 NZD|High: $4,290 NZD|Avg: $1,931 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
November 2, 2026
Retailer 9$1,143 NZD
Retailer 8$1,216 NZD
Retailer 5$1,239 NZD
Retailer 11$1,239 NZD
Retailer 10$1,287 NZD
Retailer 4$1,431 NZD
Retailer 3$1,525 NZD
Retailer 6$1,630 NZD
Retailer 13$1,769 NZD
Retailer 2$1,773 NZD
Retailer 7$2,519 NZD
Retailer 12$3,950 NZD
NZ Jewellers$4,290 NZD

42 data points across 13 retailers

14 retailers$1,143 NZD to $2,519 NZD

A
Cheapest Retailer
-
$1,143 NZD
$643 USD
Final sale: no returns
B+
Retailer 2
-
$1,216 NZD
$684 USD
View
B+
Retailer 3
-
$1,239 NZD
$697 USD
View
B+
Retailer 4
-
$1,239 NZD
$697 USD
View
B+
Retailer 5
-
$1,265 NZD
$712 USD
View
B+
Retailer 6
-
$1,287 NZD
$724 USD
View
B+
Retailer 7
-
$1,431 NZD
$805 USD
View
B
Retailer 8
-
$1,525 NZD
$858 USD
View
B
Retailer 9
-
$1,630 NZD
£722 GBP
View
B
Retailer 10
-
$1,646 NZD
$926 USD
View
B
Retailer 11
-
$1,773 NZD
€950 EUR
View
B
Retailer 12
-
$2,519 NZD
£1,116 GBP
View
Retailer 13
-
$3,950 NZD
CA$3,087 CAD
View
Price under review
Most Expensive
NZ Jewellers
208f3f6d-ddf7-4dc5-bb3f-b01eab52b41a · Oct 30
$4,290 NZD
$2,414 USD
View
Price under review
13 more retailers have this diamond
Prices start from $1,143 NZDSave up to $1,376 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
$1,143 NZD