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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6545535409

Certificate GIA 6545535409

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)
14 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 6545535409. Listed at 14 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
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6545535409
Dimensions8.48 × 4.04 × 2.45 mm
L/W Ratio2.10
Top View
8.48 mm4.04 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6545535409
Side View
Table 58.0%CrownGirdle: Very ThickPavilionCulet: NDepth 60.6%

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: $1,001 NZD|High: $3,405 NZD|Avg: $1,493 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
November 2, 2026
Retailer 3$1,001 NZD
Retailer 12$1,086 NZD
Retailer 10$1,169 NZD
Retailer 11$1,169 NZD
Retailer 8$1,253 NZD
Retailer 2$1,297 NZD
Retailer 4$1,315 NZD
Retailer 6$1,335 NZD
Retailer 9$1,361 NZD
Retailer 5$1,601 NZD
Retailer 7$2,508 NZD
NZ Jewellers$3,405 NZD

33 data points across 12 retailers

14 retailers$910 NZD to $2,508 NZD

A
Cheapest Retailer
-
$910 NZD
HK$4,000 HKD
A
Retailer 2
-
$1,001 NZD
$563 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,086 NZD
$611 USD
View
B+
Retailer 4
-
$1,169 NZD
$658 USD
View
B+
Retailer 5
-
$1,169 NZD
$658 USD
View
B+
Retailer 6
-
$1,253 NZD
$705 USD
View
B+
Retailer 7
-
$1,253 NZD
$705 USD
View
B+
Retailer 8
-
$1,297 NZD
£575 GBP
View
B+
Retailer 9
-
$1,315 NZD
$740 USD
View
B+
Retailer 10
-
$1,335 NZD
£591 GBP
View
B+
Retailer 11
-
$1,361 NZD
£603 GBP
View
B
Retailer 12
-
$1,601 NZD
€858 EUR
View
B
Retailer 13
-
$2,508 NZD
£1,111 GBP
View
Most Expensive
NZ Jewellers
3393a178-b7b2-47be-8ba7-0a0ae1ddd652 · Oct 30
$3,405 NZD
$1,916 USD
View
Price under review
13 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