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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

ID • H/SI2 • GIA 2235988918

Certificate GIA 2235988918

Diamond specifications and retailer prices

From $818 NZD
$460 USD
As of November 2, 2026
Save $1,670 NZD (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,512 NZD at NZ Jewellers · As of September 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 2235988918. Listed at 14 retailers as of November 1, 2026, with a 204% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235988918
Dimensions8.09 × 4.13 × 2.63 mm
L/W Ratio1.96
Girdle conditionFaceted
Top View
8.09 mm4.13 mm0.50 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2235988918
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.5%

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: $1,287 NZD|Low: $818 NZD|High: $2,566 NZD|Avg: $1,350 NZD|-3.1%
Retailer 1
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 5$818 NZD
Retailer 12$899 NZD
Retailer 10$955 NZD
Retailer 9$1,006 NZD
Retailer 3$1,152 NZD
Retailer 8$1,181 NZD
Retailer 1$1,287 NZD
Retailer 13$1,299 NZD
Retailer 7$1,350 NZD
Retailer 2$1,378 NZD
Retailer 4$1,546 NZD
Retailer 6$1,590 NZD
Retailer 11$2,487 NZD

28 data points across 13 retailers

14 retailers$818 NZD to $2,487 NZD

A
Cheapest Retailer
-
$818 NZD
$460 USD
A
Retailer 2
-
$899 NZD
$506 USD
View
Final sale: no returns
A
Retailer 3
-
$955 NZD
HK$4,200 HKD
View
A
Retailer 4
-
$1,006 NZD
$566 USD
View
Retailer 5
-
$1,152 NZD
$648 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,181 NZD
£523 GBP
View
B+
Retailer 7
-
$1,287 NZD
£570 GBP
View
B+
Retailer 8
-
$1,299 NZD
$731 USD
View
B+
Retailer 9
-
$1,350 NZD
£598 GBP
View
B+
Retailer 10
-
$1,378 NZD
$775 USD
View
Retailer 11
-
$1,546 NZD
$870 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$1,590 NZD
€852 EUR
View
B
Retailer 13
-
$2,487 NZD
£1,102 GBP
View
Most Expensive
NZ Jewellers
f13de53d-487a-4c2e-8e77-a2bde78ba540 · Sep 30
$3,512 NZD
$1,976 USD
View
Price under review
13 more retailers have this diamond
Prices start from $818 NZDSave up to $1,670 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
$818 NZD