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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 1555995372

Certificate GIA 1555995372

Diamond specifications and retailer prices

From $910 NZD
HK$4,000 HKD
As of November 1, 2026
Save $1,598 NZD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,405 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 1555995372. Listed at 17 retailers as of November 1, 2026, with a 176% 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
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555995372
Dimensions7.53 × 4.22 × 2.65 mm
L/W Ratio1.78
Key to symbols
Feather, Crystal
Top View
7.53 mm4.22 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1555995372
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.8%

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 1
Current: $3,405 NZD|Low: $887 NZD|High: $3,405 NZD|Avg: $1,421 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
November 2, 2026
Retailer 5$910 NZD
Retailer 4$1,001 NZD
Retailer 15$1,086 NZD
Retailer 6$1,111 NZD
Retailer 9$1,130 NZD
Retailer 16$1,169 NZD
Retailer 17$1,169 NZD
Retailer 3$1,253 NZD
Retailer 14$1,253 NZD
Retailer 2$1,297 NZD
Retailer 7$1,315 NZD
Retailer 8$1,320 NZD
Retailer 11$1,335 NZD
Retailer 13$1,361 NZD
Retailer 10$1,601 NZD
Retailer 12$2,508 NZD
NZ Jewellers$3,405 NZD

28 data points across 17 retailers

17 retailers$910 NZD to $2,508 NZD

A
Cheapest Retailer
-
$910 NZD
HK$4,000 HKD
B+
Retailer 2
-
$1,001 NZD
$563 USD
View
Final sale: no returns
A
Retailer 3
-
$1,086 NZD
$611 USD
View
A
Retailer 4
-
$1,111 NZD
$625 USD
View
B+
Retailer 5
-
$1,130 NZD
SGD 859 SGD
View
B+
Retailer 6
-
$1,169 NZD
$658 USD
View
B+
Retailer 7
-
$1,169 NZD
$658 USD
View
B+
Retailer 8
-
$1,253 NZD
$705 USD
View
Retailer 9
-
$1,253 NZD
$705 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$1,297 NZD
£575 GBP
View
B+
Retailer 11
-
$1,315 NZD
$740 USD
View
B+
Retailer 12
-
$1,320 NZD
$743 USD
View
B+
Retailer 13
-
$1,335 NZD
£591 GBP
View
B+
Retailer 14
-
$1,361 NZD
£603 GBP
View
B+
Retailer 15
-
$1,601 NZD
€858 EUR
View
B
Retailer 16
-
$2,508 NZD
£1,111 GBP
View
Most Expensive
NZ Jewellers
49ef68ae-4073-441a-9b07-0f67b322082c · Oct 30
$3,405 NZD
$1,916 USD
View
Price under review
16 more retailers have this diamond
Prices start from $910 NZDSave up to $1,598 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
$910 NZD