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Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 1553995737

Certificate GIA 1553995737

Diamond specifications and retailer prices

From $819 NZD
HK$3,600 HKD
As of November 1, 2026
Save $2,245 NZD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,064 NZD at NZ Jewellers · As of November 3, 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 I 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 1553995737. Listed at 14 retailers as of November 1, 2026, with prices from $819 to $3,064, a $2,245 spread on the same certified stone. NZ Jewellers lists it at $3,064. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1553995737
Dimensions7.77 × 4.33 × 2.61 mm
L/W Ratio1.79
Key to symbols
Twinning Wisp, Feather
Top View
7.77 mm4.33 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 1553995737
Side View
Table 62.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 60.2%

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: $3,064 NZD|Low: $796 NZD|High: $3,064 NZD|Avg: $1,322 NZD|+3.7%
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
November 3, 2026
Retailer 3$819 NZD
Retailer 14$899 NZD
Retailer 11$978 NZD
Retailer 5$1,021 NZD
Retailer 12$1,052 NZD
Retailer 13$1,052 NZD
Retailer 6$1,127 NZD
Retailer 10$1,127 NZD
Retailer 7$1,167 NZD
Retailer 4$1,223 NZD
Retailer 2$1,234 NZD
Retailer 9$1,452 NZD
Retailer 8$2,257 NZD
NZ Jewellers$3,064 NZD

31 data points across 14 retailers

14 retailers$819 NZD to $3,064 NZD

A
Cheapest Retailer
-
$819 NZD
HK$3,600 HKD
B+
Retailer 2
-
$899 NZD
$506 USD
View
Final sale: no returns
A
Retailer 3
-
$978 NZD
$550 USD
View
Retailer 4
-
$1,021 NZD
SGD 776 SGD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$1,052 NZD
$592 USD
View
A
Retailer 6
-
$1,052 NZD
$592 USD
View
B+
Retailer 7
-
$1,127 NZD
$634 USD
View
Retailer 8
-
$1,127 NZD
$634 USD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$1,167 NZD
£517 GBP
View
B+
Retailer 10
-
$1,223 NZD
$688 USD
View
B+
Retailer 11
-
$1,234 NZD
£547 GBP
View
B
Retailer 12
-
$1,452 NZD
€778 EUR
View
B
Retailer 13
-
$2,257 NZD
£1,000 GBP
View
Most Expensive
B
NZ Jewellers
f71baf55-1e42-41d2-9725-8ffb66d927e9 · Nov 3
$3,064 NZD
$1,724 USD
View
13 more retailers have this diamond
Prices start from $819 NZDSave up to $2,245 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
$819 NZD